504 lines
17 KiB
C
Executable File
504 lines
17 KiB
C
Executable File
#include <stdio.h>
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#include <string.h>
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "freertos/event_groups.h"
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#include "esp_system.h"
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#include "esp_wifi.h"
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#include "esp_event.h"
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#include "esp_log.h"
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#include "esp_http_server.h"
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#include "nvs_flash.h"
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#include "driver/gpio.h"
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#include "driver/ledc.h"
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#include "cJSON.h"
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// WiFi credentials - CHANGE THESE TO YOUR NETWORK
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#define WIFI_SSID "GL-AXT1800-0c2"
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#define WIFI_PASS "CR7W25FM8S"
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#define WIFI_MAXIMUM_RETRY 5
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// Pin definitions
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#define LED_PIN GPIO_NUM_13
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#define MOTOR_R_EN GPIO_NUM_18
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#define MOTOR_L_EN GPIO_NUM_19
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#define PWM_R_PIN GPIO_NUM_21
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#define PWM_L_PIN GPIO_NUM_22
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// PWM configuration
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#define PWM_FREQUENCY 1000
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#define PWM_RESOLUTION LEDC_TIMER_8_BIT
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#define PWM_R_CHANNEL LEDC_CHANNEL_0
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#define PWM_L_CHANNEL LEDC_CHANNEL_1
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static const char* TAG = "HTTP_MOTOR";
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// WiFi event group
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static EventGroupHandle_t s_wifi_event_group;
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#define WIFI_CONNECTED_BIT BIT0
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#define WIFI_FAIL_BIT BIT1
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static int s_retry_num = 0;
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// Motor control
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typedef enum {
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MOTOR_OFF,
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MOTOR_EXHAUST,
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MOTOR_INTAKE
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} motor_mode_t;
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static motor_mode_t current_mode = MOTOR_OFF;
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static int current_speed = 0;
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// HTTP server handle
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static httpd_handle_t server = NULL;
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// HTML web page for control
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static const char* html_page =
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"<!DOCTYPE html>"
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"<html>"
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"<head>"
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" <title>Maxxfan Controller</title>"
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" <meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">"
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" <style>"
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" body { font-family: Arial, sans-serif; margin: 40px; background: #f0f0f0; }"
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" .container { max-width: 500px; margin: 0 auto; background: white; padding: 30px; border-radius: 10px; box-shadow: 0 4px 6px rgba(0,0,0,0.1); }"
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" h1 { color: #333; text-align: center; }"
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" .control-group { margin: 20px 0; padding: 20px; border: 1px solid #ddd; border-radius: 5px; }"
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" .control-group h3 { margin-top: 0; color: #555; }"
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" button { padding: 15px 25px; margin: 5px; border: none; border-radius: 5px; cursor: pointer; font-size: 16px; }"
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" .btn-off { background: #f44336; color: white; }"
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" .btn-exhaust { background: #ff9800; color: white; }"
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" .btn-intake { background: #4CAF50; color: white; }"
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" .btn-off:hover { background: #d32f2f; }"
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" .btn-exhaust:hover { background: #f57c00; }"
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" .btn-intake:hover { background: #388e3c; }"
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" .speed-control { margin: 20px 0; }"
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" .speed-slider { width: 100%; height: 40px; }"
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" .status { background: #e3f2fd; padding: 15px; border-radius: 5px; margin: 20px 0; }"
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" .status h4 { margin: 0 0 10px 0; color: #1976d2; }"
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" </style>"
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"</head>"
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"<body>"
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" <div class=\"container\">"
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" <h1>Maxxfan Controller</h1>"
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" "
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" <div class=\"status\">"
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" <h4>Current Status</h4>"
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" <p><strong>Mode:</strong> <span id=\"mode\">OFF</span></p>"
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" <p><strong>Speed:</strong> <span id=\"speed\">0</span>%</p>"
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" </div>"
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" "
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" <div class=\"control-group\">"
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" <h3>Fan Control</h3>"
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" <button class=\"btn-off\" onclick=\"setFan('off', 0)\">Turn OFF</button>"
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" <button class=\"btn-exhaust\" onclick=\"setFan('exhaust', 50)\">Exhaust (50%)</button>"
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" <button class=\"btn-intake\" onclick=\"setFan('intake', 50)\">Intake (50%)</button>"
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" </div>"
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" "
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" <div class=\"control-group\">"
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" <h3>Speed Control</h3>"
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" <div class=\"speed-control\">"
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" <label for=\"speedSlider\">Speed: <span id=\"speedValue\">50</span>%</label><br>"
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" <input type=\"range\" id=\"speedSlider\" class=\"speed-slider\" min=\"0\" max=\"100\" value=\"50\" oninput=\"updateSpeed(this.value)\">"
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" </div>"
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" <button class=\"btn-exhaust\" onclick=\"setFanSpeed('exhaust')\">Set Exhaust Speed</button>"
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" <button class=\"btn-intake\" onclick=\"setFanSpeed('intake')\">Set Intake Speed</button>"
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" </div>"
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" </div>"
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""
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" <script>"
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" let currentSpeed = 50;"
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" "
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" function updateSpeed(value) {"
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" currentSpeed = parseInt(value);"
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" document.getElementById('speedValue').textContent = value;"
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" }"
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" "
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" function setFan(mode, speed) {"
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" currentSpeed = speed;"
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" document.getElementById('speedSlider').value = speed;"
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" document.getElementById('speedValue').textContent = speed;"
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" "
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" fetch('/fan', {"
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" method: 'POST',"
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" headers: { 'Content-Type': 'application/json' },"
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" body: JSON.stringify({ mode: mode, speed: parseInt(speed) })"
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" })"
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" .then(response => response.json())"
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" .then(data => updateStatus(data))"
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" .catch(error => console.error('Error:', error));"
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" }"
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" "
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" function setFanSpeed(mode) {"
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" fetch('/fan', {"
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" method: 'POST',"
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" headers: { 'Content-Type': 'application/json' },"
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" body: JSON.stringify({ mode: mode, speed: parseInt(currentSpeed) })"
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" })"
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" .then(response => response.json())"
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" .then(data => updateStatus(data))"
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" .catch(error => console.error('Error:', error));"
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" }"
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" "
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" function updateStatus(data) {"
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" document.getElementById('mode').textContent = data.mode.toUpperCase();"
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" document.getElementById('speed').textContent = data.speed;"
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" }"
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" "
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" function getStatus() {"
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" fetch('/status')"
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" .then(response => response.json())"
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" .then(data => updateStatus(data))"
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" .catch(error => console.error('Error:', error));"
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" }"
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" "
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" // Update status every 2 seconds"
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" setInterval(getStatus, 2000);"
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" "
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" // Get initial status"
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" getStatus();"
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" </script>"
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"</body>"
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"</html>";
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// WiFi event handler (same as before)
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static void event_handler(void* arg, esp_event_base_t event_base,
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int32_t event_id, void* event_data)
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{
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if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_START) {
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esp_wifi_connect();
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} else if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_DISCONNECTED) {
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if (s_retry_num < WIFI_MAXIMUM_RETRY) {
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esp_wifi_connect();
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s_retry_num++;
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ESP_LOGI(TAG, "retry to connect to the AP");
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} else {
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xEventGroupSetBits(s_wifi_event_group, WIFI_FAIL_BIT);
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}
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ESP_LOGI(TAG, "connect to the AP fail");
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} else if (event_base == IP_EVENT && event_id == IP_EVENT_STA_GOT_IP) {
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ip_event_got_ip_t* event = (ip_event_got_ip_t*) event_data;
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ESP_LOGI(TAG, "got ip:" IPSTR, IP2STR(&event->ip_info.ip));
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s_retry_num = 0;
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xEventGroupSetBits(s_wifi_event_group, WIFI_CONNECTED_BIT);
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}
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}
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void configure_gpio_pins(void)
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{
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ESP_LOGI(TAG, "Configuring GPIO pins...");
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uint64_t pin_mask = (1ULL << LED_PIN) |
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(1ULL << MOTOR_R_EN) |
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(1ULL << MOTOR_L_EN);
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gpio_config_t io_conf = {
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.pin_bit_mask = pin_mask,
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.mode = GPIO_MODE_OUTPUT,
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.pull_up_en = GPIO_PULLUP_DISABLE,
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.pull_down_en = GPIO_PULLDOWN_DISABLE,
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.intr_type = GPIO_INTR_DISABLE
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};
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gpio_config(&io_conf);
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gpio_set_level(LED_PIN, 0);
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gpio_set_level(MOTOR_R_EN, 0);
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gpio_set_level(MOTOR_L_EN, 0);
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ESP_LOGI(TAG, "GPIO pins configured");
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}
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void configure_pwm(void)
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{
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ESP_LOGI(TAG, "Configuring PWM...");
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ledc_timer_config_t timer_conf = {
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.speed_mode = LEDC_LOW_SPEED_MODE,
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.timer_num = LEDC_TIMER_0,
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.duty_resolution = PWM_RESOLUTION,
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.freq_hz = PWM_FREQUENCY,
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.clk_cfg = LEDC_AUTO_CLK
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};
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ledc_timer_config(&timer_conf);
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ledc_channel_config_t channel_conf = {
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.channel = PWM_R_CHANNEL,
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.duty = 0,
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.gpio_num = PWM_R_PIN,
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.speed_mode = LEDC_LOW_SPEED_MODE,
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.hpoint = 0,
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.timer_sel = LEDC_TIMER_0
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};
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ledc_channel_config(&channel_conf);
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channel_conf.channel = PWM_L_CHANNEL;
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channel_conf.gpio_num = PWM_L_PIN;
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ledc_channel_config(&channel_conf);
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ESP_LOGI(TAG, "PWM configured");
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}
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void set_motor_speed(motor_mode_t mode, int speed_percent)
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{
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if (speed_percent < 0) speed_percent = 0;
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if (speed_percent > 100) speed_percent = 100;
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current_mode = mode;
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current_speed = speed_percent;
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uint32_t duty = (speed_percent * 255) / 100;
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if (mode == MOTOR_OFF || speed_percent == 0) {
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ESP_LOGI(TAG, "Motor OFF");
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gpio_set_level(LED_PIN, 0);
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gpio_set_level(MOTOR_R_EN, 0);
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gpio_set_level(MOTOR_L_EN, 0);
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ledc_set_duty(LEDC_LOW_SPEED_MODE, PWM_R_CHANNEL, 0);
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ledc_set_duty(LEDC_LOW_SPEED_MODE, PWM_L_CHANNEL, 0);
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ledc_update_duty(LEDC_LOW_SPEED_MODE, PWM_R_CHANNEL);
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ledc_update_duty(LEDC_LOW_SPEED_MODE, PWM_L_CHANNEL);
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} else if (mode == MOTOR_EXHAUST) {
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ESP_LOGI(TAG, "Motor EXHAUST - Speed: %d%%", speed_percent);
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gpio_set_level(LED_PIN, 1);
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gpio_set_level(MOTOR_R_EN, 1);
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gpio_set_level(MOTOR_L_EN, 0);
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vTaskDelay(pdMS_TO_TICKS(10));
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ledc_set_duty(LEDC_LOW_SPEED_MODE, PWM_R_CHANNEL, duty);
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ledc_set_duty(LEDC_LOW_SPEED_MODE, PWM_L_CHANNEL, 0);
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ledc_update_duty(LEDC_LOW_SPEED_MODE, PWM_R_CHANNEL);
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ledc_update_duty(LEDC_LOW_SPEED_MODE, PWM_L_CHANNEL);
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} else if (mode == MOTOR_INTAKE) {
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ESP_LOGI(TAG, "Motor INTAKE - Speed: %d%%", speed_percent);
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gpio_set_level(LED_PIN, 1);
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gpio_set_level(MOTOR_R_EN, 0);
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gpio_set_level(MOTOR_L_EN, 1);
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vTaskDelay(pdMS_TO_TICKS(10));
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ledc_set_duty(LEDC_LOW_SPEED_MODE, PWM_R_CHANNEL, 0);
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ledc_set_duty(LEDC_LOW_SPEED_MODE, PWM_L_CHANNEL, duty);
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ledc_update_duty(LEDC_LOW_SPEED_MODE, PWM_R_CHANNEL);
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ledc_update_duty(LEDC_LOW_SPEED_MODE, PWM_L_CHANNEL);
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}
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}
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// HTTP handler for the main web page
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static esp_err_t root_get_handler(httpd_req_t *req)
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{
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httpd_resp_set_type(req, "text/html");
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httpd_resp_send(req, html_page, HTTPD_RESP_USE_STRLEN);
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return ESP_OK;
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}
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// HTTP handler for fan status (GET /status)
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static esp_err_t status_get_handler(httpd_req_t *req)
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{
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cJSON *json = cJSON_CreateObject();
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const char* mode_str = "off";
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if (current_mode == MOTOR_EXHAUST) mode_str = "exhaust";
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else if (current_mode == MOTOR_INTAKE) mode_str = "intake";
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cJSON_AddStringToObject(json, "mode", mode_str);
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cJSON_AddNumberToObject(json, "speed", current_speed);
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char *json_string = cJSON_Print(json);
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httpd_resp_set_type(req, "application/json");
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httpd_resp_send(req, json_string, strlen(json_string));
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free(json_string);
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cJSON_Delete(json);
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return ESP_OK;
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}
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// HTTP handler for fan control (POST /fan)
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static esp_err_t fan_post_handler(httpd_req_t *req)
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{
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char buf[100];
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int ret, remaining = req->content_len;
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if (remaining >= sizeof(buf)) {
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httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "Content too long");
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return ESP_FAIL;
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}
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ret = httpd_req_recv(req, buf, remaining);
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if (ret <= 0) {
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if (ret == HTTPD_SOCK_ERR_TIMEOUT) {
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httpd_resp_send_err(req, HTTPD_408_REQ_TIMEOUT, "Request timeout");
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}
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return ESP_FAIL;
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}
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buf[ret] = '\0';
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cJSON *json = cJSON_Parse(buf);
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if (json == NULL) {
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httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "Invalid JSON");
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return ESP_FAIL;
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}
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cJSON *mode_json = cJSON_GetObjectItem(json, "mode");
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cJSON *speed_json = cJSON_GetObjectItem(json, "speed");
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if (!cJSON_IsString(mode_json) || (!cJSON_IsNumber(speed_json) && !cJSON_IsString(speed_json))) {
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ESP_LOGE(TAG, "JSON parsing failed - mode: %s, speed: %s",
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mode_json ? (cJSON_IsString(mode_json) ? mode_json->valuestring : "not_string") : "null",
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speed_json ? (cJSON_IsNumber(speed_json) ? "number" : (cJSON_IsString(speed_json) ? speed_json->valuestring : "not_number_or_string")) : "null");
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cJSON_Delete(json);
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httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "Missing mode or speed");
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return ESP_FAIL;
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}
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const char* mode_str = mode_json->valuestring;
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int speed;
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// Handle both number and string speed values
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if (cJSON_IsNumber(speed_json)) {
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speed = (int)speed_json->valuedouble;
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} else if (cJSON_IsString(speed_json)) {
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speed = atoi(speed_json->valuestring);
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} else {
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speed = 0;
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}
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motor_mode_t mode = MOTOR_OFF;
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if (strcmp(mode_str, "exhaust") == 0) {
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mode = MOTOR_EXHAUST;
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} else if (strcmp(mode_str, "intake") == 0) {
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mode = MOTOR_INTAKE;
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}
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ESP_LOGI(TAG, "HTTP Request: mode=%s, speed=%d", mode_str, speed);
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set_motor_speed(mode, speed);
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cJSON_Delete(json);
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// Send response
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return status_get_handler(req);
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}
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// Start HTTP server
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static httpd_handle_t start_webserver(void)
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{
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httpd_config_t config = HTTPD_DEFAULT_CONFIG();
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config.max_uri_handlers = 10;
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ESP_LOGI(TAG, "Starting server on port: '%d'", config.server_port);
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if (httpd_start(&server, &config) == ESP_OK) {
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ESP_LOGI(TAG, "Registering URI handlers");
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httpd_uri_t root = {
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.uri = "/",
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.method = HTTP_GET,
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.handler = root_get_handler,
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.user_ctx = NULL
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};
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httpd_register_uri_handler(server, &root);
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httpd_uri_t status = {
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.uri = "/status",
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.method = HTTP_GET,
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.handler = status_get_handler,
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.user_ctx = NULL
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};
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httpd_register_uri_handler(server, &status);
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httpd_uri_t fan = {
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.uri = "/fan",
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.method = HTTP_POST,
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.handler = fan_post_handler,
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.user_ctx = NULL
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};
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httpd_register_uri_handler(server, &fan);
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return server;
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}
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ESP_LOGI(TAG, "Error starting server!");
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return NULL;
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}
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void wifi_init_sta(void)
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{
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s_wifi_event_group = xEventGroupCreate();
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ESP_ERROR_CHECK(esp_netif_init());
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ESP_ERROR_CHECK(esp_event_loop_create_default());
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esp_netif_create_default_wifi_sta();
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wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
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ESP_ERROR_CHECK(esp_wifi_init(&cfg));
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esp_event_handler_instance_t instance_any_id;
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esp_event_handler_instance_t instance_got_ip;
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ESP_ERROR_CHECK(esp_event_handler_instance_register(WIFI_EVENT,
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ESP_EVENT_ANY_ID,
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&event_handler,
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NULL,
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&instance_any_id));
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ESP_ERROR_CHECK(esp_event_handler_instance_register(IP_EVENT,
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IP_EVENT_STA_GOT_IP,
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&event_handler,
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NULL,
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&instance_got_ip));
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wifi_config_t wifi_config = {
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.sta = {
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.ssid = WIFI_SSID,
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.password = WIFI_PASS,
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.threshold.authmode = WIFI_AUTH_WPA2_PSK,
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.pmf_cfg = {
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|
.capable = true,
|
|
.required = false
|
|
},
|
|
},
|
|
};
|
|
ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));
|
|
ESP_ERROR_CHECK(esp_wifi_set_config(WIFI_IF_STA, &wifi_config));
|
|
ESP_ERROR_CHECK(esp_wifi_start());
|
|
|
|
ESP_LOGI(TAG, "wifi_init_sta finished.");
|
|
|
|
EventBits_t bits = xEventGroupWaitBits(s_wifi_event_group,
|
|
WIFI_CONNECTED_BIT | WIFI_FAIL_BIT,
|
|
pdFALSE,
|
|
pdFALSE,
|
|
portMAX_DELAY);
|
|
|
|
if (bits & WIFI_CONNECTED_BIT) {
|
|
ESP_LOGI(TAG, "connected to ap SSID:%s", WIFI_SSID);
|
|
} else if (bits & WIFI_FAIL_BIT) {
|
|
ESP_LOGI(TAG, "Failed to connect to SSID:%s", WIFI_SSID);
|
|
} else {
|
|
ESP_LOGE(TAG, "UNEXPECTED EVENT");
|
|
}
|
|
}
|
|
|
|
void app_main(void)
|
|
{
|
|
ESP_LOGI(TAG, "Starting Maxxfan HTTP Controller!");
|
|
|
|
// Initialize NVS
|
|
esp_err_t ret = nvs_flash_init();
|
|
if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
|
|
ESP_ERROR_CHECK(nvs_flash_erase());
|
|
ret = nvs_flash_init();
|
|
}
|
|
ESP_ERROR_CHECK(ret);
|
|
|
|
// Configure hardware
|
|
configure_gpio_pins();
|
|
configure_pwm();
|
|
|
|
ESP_LOGI(TAG, "Connecting to WiFi network: %s", WIFI_SSID);
|
|
wifi_init_sta();
|
|
|
|
// Start HTTP server
|
|
start_webserver();
|
|
|
|
ESP_LOGI(TAG, "=== Maxxfan Controller Ready! ===");
|
|
ESP_LOGI(TAG, "Open your browser and go to: http://[ESP32_IP_ADDRESS]");
|
|
ESP_LOGI(TAG, "Check the monitor output above for your IP address");
|
|
} |