I am reading an input from my Ohaus weighing scale using it's RS232 output using this code:
#define HWSERIAL Serial1
void setup() {
Serial.begin(9600);
HWSERIAL.begin(9600);
}
void loop() {
int incomingByte;
if (Serial.available() > 0) {
incomingByte = Serial.read();
Serial.print("USB received: ");
Serial.println(incomingByte, DEC);
//HWSERIAL.print("USB received:");
//HWSERIAL.println(incomingByte, DEC);
}
if (HWSERIAL.available() > 0) {
incomingByte = HWSERIAL.read();
Serial.print("UART received: ");
Serial.println(incomingByte);
//HWSERIAL.print("UART received:");
//HWSERIAL.println(incomingByte);
}
}
When pressing the print button on the scale, I was expecting data to come over in single burst with just the readings, but what I am getting is the expected data, but the scale keeps sending data afterwards (ES over and over). I need to parse out just what's needed. The below is the output from the console on my computer.
UART received:
UART received:
UART received:
UART received:
UART received: 0
UART received: .
UART received: 0
UART received: 0
UART received:
UART received:
UART received:
UART received:
UART received:
UART received:
UART received: ?
UART received: (This is a CR)
UART received: (This is a LF)
UART received:
UART received:
UART received:
UART received:
UART received: 0
UART received: .
UART received: 4
UART received: 0
UART received:
UART received:
UART received:
UART received:
UART received:
UART received:
UART received: ?
UART received: G
UART received:
UART received:
UART received: (CR)
UART received: (LF)
UART received: E
UART received: S
UART received: (CR)
UART received: (LF)
... (The ES loops over and over until the print button is pressed again)
0.00 is the current scale reading and 0.40 is the tare weight. That's all I need and I can't figure out how to parse it. The blocks aren't the same length so how do I pull out the needed information and ignore the repetitive 'ES'? I'm not 100% sure if I'm even going about this the right way?
Output as DEC
UART received: 32
UART received: 32
UART received: 32
UART received: 32
UART received: 48
UART received: 46
UART received: 48
UART received: 48
UART received: 32
UART received: 32
UART received: 32
UART received: 32
UART received: 32
UART received: 32
UART received: 63
UART received: 13
UART received: 10
UART received: 32
UART received: 32
UART received: 32
UART received: 32
UART received: 48
UART received: 46
UART received: 52
UART received: 48
UART received: 32
UART received: 32
UART received: 32
UART received: 32
UART received: 32
UART received: 32
UART received: 63
UART received: 71
UART received: 32
UART received: 32
UART received: 13
UART received: 10
UART received: 69
UART received: 83
UART received: 13
UART received: 10
UART received: 69
UART received: 83
...
