1 files changed, 61 insertions, 0 deletions
diff --git a/datasources/arduino/arduinoAnalogSerial/analog.ino b/datasources/arduino/arduinoAnalogSerial/analog.ino
new file mode 100755
index 0000000..47bf63d
--- /dev/null
+++ b/datasources/arduino/arduinoAnalogSerial/analog.ino
@@ -0,0 +1,61 @@
+// vim: filetype=cpp expandtab shiftwidth=4 softtabstop=4
+
+const int ledPin = 13;      // select the pin for the LED
+
+const long ADC_REF_MV = 3300;
+const long ADC_MAX_STEP = 1024;
+const long OV_FACTOR = 4; // Op. Verstärker Faktor = 4; 10mV = 1dB
+
+void sendKeyValue(const char *key, const char *value) {
+    Serial.print(key);
+    Serial.print("=");
+    Serial.println(value);
+}
+
+void sendPinValue(int pin) {
+    long sensorValue,
+         sensorValueMV, 
+         sensorValueDBA;
+    char buf[12];
+    char *sensorKey = "arduino.aX", 
+         *sensorKeyMV = "arduino.aX.mv",
+         *sensorKeyDBA = "arduino.aX.dba";
+    int port = A0 + pin;
+
+    sensorValue = analogRead(port);
+    sensorKey[9] = '0' + pin;
+    snprintf(buf, 8, "%u", sensorValue);
+    sendKeyValue(sensorKey, buf);
+
+    sensorValueMV = sensorValue * (ADC_REF_MV*100/ADC_MAX_STEP);
+    sensorKeyMV[9] = '0' + pin;
+    snprintf(buf, 8, "%ld.%03ld", sensorValueMV/100, sensorValue%100);
+    sendKeyValue(sensorKeyMV, buf);
+
+    sensorValueDBA = sensorValueMV / OV_FACTOR; 
+    sensorKeyDBA[9] = '0' + pin;
+    snprintf(buf, 12, "%ld.%04ld", sensorValueDBA/1000, sensorValueDBA%1000);
+    sendKeyValue(sensorKeyDBA, buf);
+}
+
+void setup() {
+    Serial.begin(115200);
+    // declare the ledPin as an OUTPUT:
+    pinMode(ledPin, OUTPUT);  
+    // Reference is EXTERNAL (3v)
+    analogReference(EXTERNAL);
+}
+
+void loop() {
+    if (Serial.available() > 0) {
+        digitalWrite(ledPin, HIGH);
+        
+        int pin = Serial.read();
+        while (Serial.available()) Serial.read();
+
+        sendPinValue(pin-'0');
+        Serial.flush();
+
+        digitalWrite(ledPin, LOW);
+    }
+}