playfultechnology/arduino-rfid-r200

Arduino/ESP32 code for R200 long-range UHF RFID reader

arduino-rfid-r200's Issues

Serial2 is unknown

Hey, thank you for this awesome work.
I tried to get it running with an NodeMCU, but I stumbled over some lines.
My Platform IO IDE says that Serial2 is unknown, so I changed it to Serial1, which is a HardwareSerial class.
Further I changed in the 200.h file the return type of parseReceivedData() to void, because the return type is never use.

And in my version of HardwareSerial.h there is no way of using:
_serial->begin(baud, SERIAL_8N1, RxPin, TxPin);
So I changed it to:
_serial->begin(baud, SERIAL_8N1, SERIAL_TX_ONLY, TxPin);

But I still don`t receive any information.

Any Idea? I'm sadly a bit new to this whole RFID & RX/TX topic.

Fixed and Inconsistent RSSI Values in ESP32 Board and R200 Chip

Description:

I am working on a system that involves an ESP32 board and a R200 chip for UHF signal reading. I have encountered a significant issue with the RSSI value readings. Specifically, the value assigned to RSSI, which is stored in _buffer[6], remains constant and does not show the expected variability. Additionally, I have noticed a numeric value in _buffer[5] varying between 213 and 160, which does not align with typical RSSI values in dBm.

Additional Details:

Components Used: ESP32 board, R200 chip.
Symptom of the Problem: The RSSI value, as defined in the code and located in _buffer[6], is constant and unchanging, suggesting a problem in the reading or interpretation of the RSSI value.
Observation in _buffer[5]: A fluctuating numeric value between 213 and 160 is recorded, not corresponding to standard RSSI measurements in dBm.
Steps to Reproduce:

Set up the ESP32 board with the R200 chip for UHF reading.
Perform capturing and reading of RSSI values.
Observe the reported values in _buffer[6] and _buffer[5].
Expected Results:
RSSI values should reflect the detected UHF signal strength, showing appropriate variations in dBm.

Actual Results:

The value in _buffer[6], designated as RSSI, remains constant and does not vary across measurements.
The value in _buffer[5] fluctuates between 213 and 160, not aligning with a typical range of RSSI values in dBm.
Any assistance or suggestions for diagnosing and correcting this issue would be greatly appreciated. Thank you in advance for your collaboration and support.

I finally got it, thank you