How to wire NRF51822 board (RX, TX)?

[4ntoine]

Hello. I'm having the following connection module with nRF51822 chip. It was purchased here.

I've found example sketch for Arduino but i can't understand how to wire the board?

I have experience with HM-10/HM-11 and HC-08 BLE modules and they have special pins for UART RX and TX to wire directly to Arduino's RX and TX.

Is there smth similar to this board? Can it work as wireless serial? For now my understanding is that i will need to use special lib (as in arduino example) and this is done in HM/HC firmware to work as transparent.

[Petter Myhre]

The GPIOs on nRF51 (and nRF52) are flexible. You can assign the UART connections to any pins.

Since you tagged ble_app_uart, I'm assuming you have found our SDK. In that example you can set which pins to use in uart_init().

[4ntoine]

I've found Arduino sketch, is it SDK or should i prepare some firmware for NRF chip?

Can it work in "transparent" mode without any SDK/lib used like HM? It means i will be able to wire TX pin to Arduino RX just like it's regular serial? My purpose is to interact with Arduino bootloader and it means i can't use any SDK or lib for this in order to use default boorloader. I can do it with HM.