Open-source design reference for software-defined dual-band CC1101 + NRF24 RF expansion on M5Stack Cardputer ADV. Pin mapping, circuit topology, Bruce firmware brucePins.conf, and DIY build guide.
iot hardware esp32 open-hardware spi diy nrf24l01 rf cc1101 nrf24 sub-ghz m5stack auto-switch hardware-design esp32-s3 cardputer pin-mapping bruce-firmware cardputer-adv dual-radio
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Updated
May 11, 2026