I'm trying to send data via UART from a NUCLEO-F401RE to the nRF 52840 DK. But the data I send is not comming through correctly. For example when I send 3 the nRF prints 32. I'm not sure what could be wrong. I'm using the peripheral/uart example code. Using pin 8 as RX and pin 6 as TX on the nRF DK and a shared ground.