Structure of both sketches is complete, need to test on hardware

ino/mcopy_cam_canon_ble/mcopy_cam_canon_ble.ino

@@ -17,13 +17,16 @@
 #include "CanonBLERemote.h"
 #include <Arduino.h>
 
+#define RXD2 16
+#define TXD2 -1
+
 #define LOG_LOCAL_LEVEL ESP_LOG_INFO
 #include "esp_log.h"
 #include <esp32-hal-log.h>
 
-
 const String name_remote = "mcopy";
 CanonBLERemote canon_ble(name_remote);
+HardwareSerial Serial2(1);
 
 volatile boolean connected = false;
 volatile boolean bleInit = false;
@@ -33,10 +36,10 @@ volatile long last = -1;
 
 volatile char cmdChar = 'z';
 
-
-void setup()
-{
+void setup () {
     esp_log_level_set("*", ESP_LOG_NONE);
+    delay(500);
+    Serial2.begin(57600, SERIAL_8N1, RXD2, TXD2);
 }
 
 void connectBLE () {
@@ -46,46 +49,46 @@ void connectBLE () {
     while(!canon_ble.pair(10));
 
     connected = true;
-    
-    //mc.log("Camera paired");
-    //mc.log(canon_ble.getPairedAddressString());
+    Serial2.println('C');
 }
 
-void loop()
-{
+void loop () {
     now = millis();
 
-    // Shutter
-    if (connected){ //&&
+    if (Serial2.available() > 0) {
+        cmdChar = Serial2.read();
+    }
+
+    if (connected && cmdChar == 'c') {
         camera();
     }
 
+    if (!bleInit && !connected && cmdChar == 'i') {
+        canon_ble.init();
+        bleInit = true;
+        Serial2.println('i');
+    }
+
+    if (!connected && cmd == 'C') {
+        connectBLE();
+    }
+
     if (connected && !canon_ble.isConnected()) {
         connected = false;
+        Serial2.println('d');
     }
 
-    if (!bleInit && mc.connected && mc.identified) {
-        //mc.log("Initializing BLE...");
-        canon_ble.init();
-        bleInit = true;
-        delay(1000);
-    }
-
-    if (!connected && mc.connected && mc.identified) {
-        //mc.log("Connecting BLE...");
-        connectBLE();
-    }
+    cmdChar = 'z';
 }
 
 void camera () {
     long start = now;
     long end;
 
-    //mc.log("Shutter pressed");
-
-    if(!canon_ble.trigger()){
-        //mc.log("camera() failed");
+    if (!canon_ble.trigger()) {
+        Serial2.println('E');
     }
+    Serial2.println('c');
 
     end = millis();
 }

ino/mcopy_cam_canon_ble_nano/mcopy_cam_canon_ble_nano.ino

@@ -14,29 +14,40 @@
  * 
  **/
 
+#include <SoftwareSerial.h>
 #include "McopySerial.h"
 
-#define SHUTTTER_BTN    12
-#define RELAY_PIN       14
-#define RED_LED         23
-#define GREEN_LED       22
+#define SHUTTTER_BTN    5
+#define RED_LED         6
+#define GREEN_LED       7
+#define SOFTWARE_RX     10
+#define SOFTWARE_TX     11
 
 McopySerial mc;
+SoftwareSerial softPort(SOFTWARE_RX, SOFTWARE_TX);
 
+volatile boolean attached = false;
 volatile boolean connected = false;
 volatile boolean bleInit = false;
 
+volatile boolean blinkState = false;
+volatile long blinkLast = 0;
+
 volatile long now;
 volatile long last = -1;
 volatile long cameraFrame = 2000;
 
+volatile long start;
+volatile long end;
+
 volatile char cmdChar = 'z';
+volatile char sChar = 'z';
 
 
-void setup()
-{
+void setup () {
     pins();
     mc.begin(mc.CAMERA_IDENTIFIER);
+    softPort.begin(57600);
 
     digitalWrite(RED_LED, HIGH);
     digitalWrite(GREEN_LED, HIGH);
@@ -45,6 +56,7 @@ void setup()
 
     digitalWrite(RED_LED, LOW);
     digitalWrite(GREEN_LED, LOW);
+    blinkLast = millis();
 }
 
 void pins () {
@@ -57,11 +69,15 @@ void pins () {
 }
 
 
-void loop()
-{
+void loop () {
     now = millis();
     cmdChar = mc.loop();
 
+    if (softPort.available() > 0) {
+        sChar = softPort.read();
+    }
+
+    s_cmd(sChar);
     cmd(cmdChar);
 
     // Shutter
@@ -69,18 +85,16 @@ void loop()
         camera();
     }
 
-    if (connected && !canon_ble.isConnected()) {
-        connected = false;
-    }
-
     if (!bleInit && mc.connected && mc.identified) {
-        bleInit = true;
-        delay(1000);
+        softPort.println('i');
     }
 
-    if (!connected && mc.connected && mc.identified) {
+    if (bleInit && !connected && mc.connected && mc.identified) {
         mc.log("Connecting BLE...");
+        softPort.println('C');
     }
+
+    blink();
 }
 
 void cmd (char val) {
@@ -95,22 +109,39 @@ void cmd (char val) {
     }
 }
 
-void camera () {
-    long start = now;
-    long end;
+void s_cmd (char val) {
+    if (val == 'a') {
+        attached = true;
+    } else if (val == 'i') {
+        bleInit = true;
+    } else if (val == 'C') {
+        connected = true;
+        digitalWrite(RED_LED, LOW);
+        digitalWrite(GREEN_LED, HIGH);
+    } else if (val == 'd') {
+        connected = false;
+    } else if (val == 'c') {
+        camera_end();
+    }
+    sChar = 'z';
+}
 
+void camera () {
+    start = now;
     digitalWrite(GREEN_LED, HIGH);
     digitalWrite(RED_LED, HIGH);
     mc.log("Shutter pressed");
+    softPort.println('c');
+}
 
-   
-
+void camera_end () {
     end = millis();
     delay(cameraFrame - (end - start));
     digitalWrite(GREEN_LED, HIGH);
     digitalWrite(RED_LED, LOW);
     last = millis();
     mc.confirm(mc.CAMERA);
+    mc.log("camera()");
 }
 
 //null route direction
@@ -124,6 +155,20 @@ void camera_direction (boolean state) {
     }
 }
 
+void blink () {
+    if (!connected) {
+        if (now >= blinkLast + 200) {
+            if (blinkState) {
+                digitalWrite(RED_LED, HIGH);
+            } else {
+                digitalWrite(RED_LED, LOW);
+            }
+            blinkState = !blinkState;
+            blinkLast = now;
+        } 
+    }
+}
+
 void state () {
     String stateString = String(mc.STATE);
     stateString += String(mc.CAMERA_EXPOSURE);