added support for opto relay

Author: Rocketct

examples/Modulino_Relay/Basic/Basic.ino

@@ -0,0 +1,25 @@
+#include <Modulino.h>
+
+ModulinoRelay relay;
+
+void setup() {
+  Serial.begin(115200);
+  Modulino.begin();
+  relay.begin();
+
+}
+void loop() {
+  relay.on();
+  if(relay.getStatus())
+  {
+    Serial.println("Relay state ON!");
+  }
+  delay(1000);
+  relay.off();
+  if(!(relay.getStatus()))
+  {
+    Serial.println("Relay state OFF!");
+  }
+  Serial.println();
+  delay(1000);
+}

examples/Utilities/AddressChanger/AddressChanger.ino

@@ -34,6 +34,8 @@ String pinstrapToName(uint8_t pinstrap) {
       return "JOYSTICK";
     case 0x7C:
       return "BUTTONS";
+    case 0x28:
+      return "RELAY";
     case 0x76:
     case 0x74:
       return "ENCODER";

src/Modulino.h

@@ -182,7 +182,7 @@ class ModulinoJoystick : public Module {
     return (last_status[1] < 128 ? (128 - last_status[1]) : -(last_status[1] - 128));
   }
   virtual uint8_t discover() {
-    for (int i = 0; i < match.size(); i++) {
+    for (unsigned int i = 0; i < sizeof(match)/sizeof(match[0]); i++) {
       if (scan(match[i])) {
         return match[i];
       }
@@ -192,7 +192,7 @@ class ModulinoJoystick : public Module {
 private:
   uint8_t last_status[3];
 protected:
-  std::vector<uint8_t> match = { 0x58 };  // same as fw main.c
+  uint8_t match[1] ={ 0x58 };  // same as fw main.c
 };
 
 class ModulinoBuzzer : public Module {
@@ -239,18 +239,17 @@ class ModulinoVibro : public Module {
     write(buf, 8);
   }
   virtual uint8_t discover() {
-    for (int i = 0; i < match.size(); i++) {
+    for (unsigned int i = 0; i < sizeof(match)/sizeof(match[0]); i++) {
       if (scan(match[i])) {
         return match[i];
       }
     }
     return 0xFF;
   }
 protected:
-  std::vector<uint8_t> match = { 0x70 };  // same as fw main.c
+  uint8_t match[1] = { 0x70 };  // same as fw main.c
 };
 
-
 class ModulinoColor {
 public:
   ModulinoColor(uint8_t r, uint8_t g, uint8_t b)
@@ -582,4 +581,51 @@ class ModulinoDistance : public Module {
   _distance_api* api = nullptr;
 };
 
-#endif
+class ModulinoRelay : public Module {
+public:
+  ModulinoRelay(uint8_t address = 0xFF)
+    : Module(address, "RELAY") {}
+  bool update() {
+    uint8_t buf[3];
+    auto res = read((uint8_t*)buf, 3);
+    auto ret = res && (buf[0] != last_status[0] || buf[1] != last_status[1] || buf[2] != last_status[2]);
+    last_status[0] = buf[0];
+    last_status[1] = buf[1];
+    last_status[2] = buf[2];
+    return ret;
+  }
+  void on() {
+    uint8_t buf[3];
+    buf[0] = 1;
+    buf[1] = 0;
+    buf[2] = 0;
+    write((uint8_t*)buf, 3);
+    return;
+  }
+  void off() {
+    uint8_t buf[3];
+    buf[0] = 0;
+    buf[1] = 0;
+    buf[2] = 0;
+    write((uint8_t*)buf, 3);
+    return;
+  }
+  bool getStatus() {
+    update();
+    return last_status[0];
+  }
+  virtual uint8_t discover() {
+    for (unsigned int i = 0; i < sizeof(match)/sizeof(match[0]); i++) {
+      if (scan(match[i])) {
+        return match[i];
+      }
+    }
+    return 0xFF;
+  }
+private:
+  bool last_status[3];
+protected:
+  uint8_t match[1] = { 0x28 };  // same as fw main.c
+};
+
+#endif // ARDUINO_LIBRARIES_MODULINO_H