I get a weird value back from a NRF24L01+ register

[elschmando]

Hello,
I try my luck with the NRF24L01+ transceiver and I'm getting a weird value back from register 0x17.
I just try to read if RX_EMPTY has data to fetch.

I do it throught this function:
`def read_reg(add):
cs.on()
send_add = bytearray()
if (0x00 <= add <= 0x17) or (0x1c <= add <= 0x1d):
send_add.append(read_conf_bin | add)
else:
send_add.append(add)

cs.off()
spi.write(send_add)
data = spi.read(1)
cs.on()

return data`

and this command:
test2 = read_reg(0x17)
What does the @ mean?

[peterhinch]

It would help if you showed where the '@' occurred. My guess is that it's ASCII character '@' which is 0x40.

NRF24L01 is quite hard to use. I strongly recommend you start with the official driver and test before venturing into coding it directly.