I had a lot of problems with communicattion between Pixy2 and ESP32 through UART. I'm using 32 (RX) and 33 (TX) pins in ESP32 and 1 (TX) and 3 (RX) on Pixy2.
Finally, I had solved with this rare code, that I don't understand but works:
change open function in library Pixy2UART.h with:
HardwareSerial Serial1(1); int8_t open(uint32_t arg) { Serial1.begin(19200, SERIAL_8N1, 33, 32); // If you try, only works with this config... Serial1.begin(19200, SERIAL_8N1, 32, 33); return 0; }
Tested on ccc_i2c_uart.ino example.
If somebody take reasonable answer to this, share it please!
Thanks!
I had a lot of problems with communicattion between Pixy2 and ESP32 through UART. I'm using 32 (RX) and 33 (TX) pins in ESP32 and 1 (TX) and 3 (RX) on Pixy2.
Finally, I had solved with this rare code, that I don't understand but works:
change
openfunction in libraryPixy2UART.hwith:HardwareSerial Serial1(1); int8_t open(uint32_t arg) { Serial1.begin(19200, SERIAL_8N1, 33, 32); // If you try, only works with this config... Serial1.begin(19200, SERIAL_8N1, 32, 33); return 0; }Tested on
ccc_i2c_uart.inoexample. If somebody take reasonable answer to this, share it please! Thanks!