The GPX Extender is a wireless link between the P1 port and the GPX Connector. It uses an STM32L011F4P6 and an off the shelf NRF24L01+ module to transparently transmit P1 port data. The device acts as transmitter when connected to the P1 port or as receiver when connected to the GPX Connector.
Project files are included for Keil µVision >=v5.27.
The design files can be opened with Eagle v8.3.1 and up