Merge pull request #547 from fdlamotte/sensors_gpio

sensors: gpio command

variants/rak3x72/target.h

@@ -13,6 +13,12 @@
 
 class RAK3x72Board : public STM32Board {
 public:
+    void begin() override {
+        STM32Board::begin();
+        pinMode(PA0, OUTPUT);
+        pinMode(PA1, OUTPUT);
+    }
+
     const char* getManufacturerName() const override {
         return "RAK 3x72";
     }
@@ -25,6 +31,17 @@ public:
         }
         return ((double)raw) * ADC_MULTIPLIER / 8 / 4096;
     }
+
+    void setGpio(uint32_t values) override {
+        // set led values
+        digitalWrite(PA0, values & 1);
+        digitalWrite(PA1, (values & 2) >> 1);
+    }
+
+    uint32_t getGpio() override {
+        // get led value
+        return (digitalRead(PA1) << 1) | digitalRead(PA0);
+    }
 };
 
 extern RAK3x72Board board;