- Fri Mar 18, 2016 7:19 pm
#43524
I have a project that reads NFC cards using a BM019 board on a SPI interface. The code is designed for an UNO and the diagrams add resistors to lower the 5v outputs the 3.3v used on the NFC board.
If swap it all over the the Wemos (ESP8266) board it all doesn't work. I've double checked everything. The pins are correct and the Slave select is working. As the Wemos is 3.3v I've just connected direct.
Just wondering if there are any other differences - or anything else I can try or test.. I'm at a loss.
If swap it all over the the Wemos (ESP8266) board it all doesn't work. I've double checked everything. The pins are correct and the Slave select is working. As the Wemos is 3.3v I've just connected direct.
Just wondering if there are any other differences - or anything else I can try or test.. I'm at a loss.
