Lua (NodeMCU) library for interfacing ESP32 with MFRC522 rfid card reader
This example will print UID (in hexadecimal representation) of scanned rfid tag.
require('rfid32')({
pin_sda = 22,
pin_clk = 19,
pin_miso = 25,
pin_mosi = 23
})
.init()
.scan({
got_tag = function(tag, rfid)
print( tag.hex() )
end
})The library depends on the following NodeMCU modules:
spibittmr