Init

src/main.cpp

@@ -0,0 +1,205 @@
+#include <Arduino.h>
+#include <XModem.h>
+#include "esp_camera.h"
+#include "Arduino.h"
+#include "soc/soc.h"           // Disable brownour problems
+#include "soc/rtc_cntl_reg.h"  // Disable brownour problems
+#include "driver/rtc_io.h"
+#include <EEPROM.h>            // read and write from flash memory
+
+// define the number of bytes you want to access
+#define EEPROM_SIZE 1
+
+// Pin definition for CAMERA_MODEL_AI_THINKER
+#define PWDN_GPIO_NUM     32
+#define RESET_GPIO_NUM    -1
+#define XCLK_GPIO_NUM      0
+#define SIOD_GPIO_NUM     26
+#define SIOC_GPIO_NUM     27
+
+#define Y9_GPIO_NUM       35
+#define Y8_GPIO_NUM       34
+#define Y7_GPIO_NUM       39
+#define Y6_GPIO_NUM       36
+#define Y5_GPIO_NUM       21
+#define Y4_GPIO_NUM       19
+#define Y3_GPIO_NUM       18
+#define Y2_GPIO_NUM        5
+#define VSYNC_GPIO_NUM    25
+#define HREF_GPIO_NUM     23
+#define PCLK_GPIO_NUM     22
+
+int pictureNumber = 0;
+camera_fb_t * fb = NULL;
+XModem xmodem(&Serial, ModeYModem);
+
+typedef void (*action_func_t)(char *aLine);
+
+typedef struct {
+  char command[7+1];    // max 7 characters plus '\0' terminator
+  action_func_t action;
+} command_action_t;
+
+
+void toLower(char *s) {
+  while (*s) {
+    if (isupper(*s)) {
+      *s += 0x20;
+    }
+    s++;
+  }
+}
+
+void print_commands(char *aLine);
+
+void reboot_esp32(char *aLine)
+{
+  Serial.println("[OK] GOING TO REBOOT");
+  delay(1000);
+  ESP.restart();
+}
+
+void recv_ymodem(char *aLine)
+{
+  xmodem.sendFile(fb->buf, fb->len, "camera.jpg");
+}
+
+void capture_image(char *aLine)
+{
+  fb = esp_camera_fb_get(); 
+  Serial.println("[OK] CAPTURED IMAGE");
+}
+
+void free_image(char *aLine)
+{
+  esp_camera_fb_return(fb); 
+  Serial.println("[OK] FREE CAPTURED IMAGE");
+}
+
+void print_measurement(char *aLine)
+{
+  Serial.printf("temperature=%.2f humidity=%.2f pressure=%.2f\n",temperatureRead(),60.2,903.45);
+  return;
+}
+
+const command_action_t commands[] = {
+  // Name of command user types, function that implements the command.
+  {"reboot", reboot_esp32},
+  {"capture", capture_image},
+  {"free", free_image},
+  {"measure", print_measurement},
+  {"rb", recv_ymodem},
+  {"help", print_commands},
+  {"?", print_commands},
+};
+
+void print_commands(char *aLine) {
+  Serial.print(commands[0].command);
+  for (size_t i = 1; i < sizeof(commands)/sizeof(commands[0]); i++) {
+    Serial.print(','); Serial.print(commands[i].command);
+  }
+  Serial.println();
+}
+
+
+void execute(char *aLine) {
+  if (aLine == NULL || *aLine == '\0') return;
+  char *cmd = strtok(aLine, " \t");
+  if (cmd == NULL || *cmd == '\0') return;
+  toLower(cmd);
+  for (size_t i = 0; i < sizeof(commands)/sizeof(commands[0]); i++) {
+    if (strcmp(cmd, commands[i].command) == 0) {
+      commands[i].action(aLine);
+      return;
+    }
+  }
+  Serial.println("command not found");
+}
+
+
+void setup() {
+  WRITE_PERI_REG(RTC_CNTL_BROWN_OUT_REG, 0); //disable brownout detector
+
+  Serial.begin(115200);
+  while (!Serial) {
+    ; // wait for serial port to connect. Needed for Leonardo only
+  }
+
+camera_config_t config;
+  config.ledc_channel = LEDC_CHANNEL_0;
+  config.ledc_timer = LEDC_TIMER_0;
+  config.pin_d0 = Y2_GPIO_NUM;
+  config.pin_d1 = Y3_GPIO_NUM;
+  config.pin_d2 = Y4_GPIO_NUM;
+  config.pin_d3 = Y5_GPIO_NUM;
+  config.pin_d4 = Y6_GPIO_NUM;
+  config.pin_d5 = Y7_GPIO_NUM;
+  config.pin_d6 = Y8_GPIO_NUM;
+  config.pin_d7 = Y9_GPIO_NUM;
+  config.pin_xclk = XCLK_GPIO_NUM;
+  config.pin_pclk = PCLK_GPIO_NUM;
+  config.pin_vsync = VSYNC_GPIO_NUM;
+  config.pin_href = HREF_GPIO_NUM;
+  config.pin_sscb_sda = SIOD_GPIO_NUM;
+  config.pin_sscb_scl = SIOC_GPIO_NUM;
+  config.pin_pwdn = PWDN_GPIO_NUM;
+  config.pin_reset = RESET_GPIO_NUM;
+  config.xclk_freq_hz = 20000000;
+  config.pixel_format = PIXFORMAT_JPEG; 
+  
+  if(psramFound()){
+    config.frame_size = FRAMESIZE_UXGA; // FRAMESIZE_ + QVGA|CIF|VGA|SVGA|XGA|SXGA|UXGA
+    config.jpeg_quality = 10;
+    config.fb_count = 2;
+  } else {
+    config.frame_size = FRAMESIZE_SVGA;
+    config.jpeg_quality = 12;
+    config.fb_count = 1;
+  }
+
+// Init Camera
+  esp_err_t err = esp_camera_init(&config);
+  if (err != ESP_OK) {
+    Serial.printf("Camera init failed with error 0x%x", err);
+    return;
+  }
+  
+  // Take Picture with Camera
+  fb = esp_camera_fb_get();  
+  if(!fb) {
+    Serial.println("Camera capture failed");
+    return;
+  }
+  esp_camera_fb_return(fb);
+
+}
+
+uint8_t bytesIn;
+char aLine[80+1];
+
+
+void loop() {
+  if (Serial.available() > 0) {
+    int b = Serial.read();
+    if (b != -1) {
+      switch (b) {
+        case '\n':
+        case '\r':
+          if (b == '\n' && bytesIn && aLine[bytesIn-1] == '\0') break;
+          Serial.println();
+          aLine[bytesIn] = '\0';
+          execute(aLine);
+          bytesIn = 0;
+          break;
+        default:
+          aLine[bytesIn++] = (char)b;
+          if (bytesIn >= sizeof(aLine)-1) {
+            aLine[bytesIn] = '\0';
+            execute(aLine);
+            bytesIn = 0;
+          }
+          break;
+      }
+    }
+  }
+}