This SD card SPI sniffer allows you to have access to the otherwise unseen GPIO pins found inside the M5Stack Cardputer. With this sniffer board you can attatch the Valleytech X DA Tech Labs Cardputer Hotswap board that allows you to switch between radio modules such as the cc1101 and nrf24! If you are thinking of buying a Cardputer hotswap board please keep in mind that you will need this sniffer board as well!
Please use these modules responsibly and only test your own hardware!
