add lora passthrough for uart stream

cocomobile-arduino/cocomobile-arduino.ino

@@ -8,6 +8,8 @@ SoftwareSerial lora(8, 9); // RX, TX
 float tens = 0;
 float amp = 0;
 
+String line;
+
 void setup() {
   lora.begin(9600);
   Serial.begin(115200);
@@ -21,5 +23,14 @@ void loop() {
   Serial.print(",");
   Serial.println(amp);
 
-  lora.println();
+  while (Serial.available()) {
+    char c = Serial.read();
+
+    if (c == '\n') {
+      lora.println(line);
+      line = "";
+    } else {
+      line += c;
+    }
+  }
 }