hi... I am working on nRF52832 . nRF52832 ,RX TX is connected to the esp8266 of tx,rx . i want to send the data from nRF52832 TO ESP8266 via uart . which function can i use ? printf or app_uart_put . how to send ? my connections suggest me
nRF52832 esp8266
RX TX
TX RX
GND GND