how to connect sparkfun M6E NANO UHF RFID reader and ESP32

Kits
1

I bought the M6E-NANO for my project and i connected it with ESP32 and runed the arduino exampl1 (Constant_Read)

But i just have seen the message for 2 weeks

The message is " Module failed to respond. Please check wiring."

I have no time to spare.

plz let me know how to connect sparkfun M6E NANO UHF RFID reader and ESP32

and i really really want to operate M6E nano with ESP32

It was confirmed that it works well when the M6E is connected to the Arduino Uno

i want to see your reply as soon as possible. plz.

i attached 2 photos

withUNO.jpg
withUNO.jpg811×1440 410 KB

withESP32.jpg
withESP32.jpg1440×811 481 KB

2

Looks like you’re using software serial. Which pins of the ESP32 did you define as your TX and RX?

3

Thank you for your reply

Most GPIOs are used to connect RX and TX.

SoftwareSerial softSerial(2, 3); //RX, TX

SoftwareSerial softSerial(3, 2); //RX, TX

SoftwareSerial softSerial(22, 23); //RX, TX

SoftwareSerial softSerial(23, 22); //RX, TX

SoftwareSerial softSerial(2, 4); //RX, TX

SoftwareSerial softSerial(4, 2); //RX, TX

SoftwareSerial softSerial(5, 18); //RX, TX

SoftwareSerial softSerial(18, 5); //RX, TX

…

SoftwareSerial softSerial(12, 14); //RX, TX

…

SoftwareSerial softSerial(32, 35); //RX, TX

4

Were you able to figure this out what was the problem ?