ESP32 DevKitC NRF24L01+PA+LNA 2.4GHz Wireless Module WiFi BLE RF Development Kit 2 x NRF24L01+PA+LNA 2.4GHz Wireless Module. All responsibilities arising from the user's self modification or use beyond the standard scope shall be borne by the user themselves. Usually it costs about 30USD-50USD. byJuly 4, 2026