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BackWi-Fi Bluetooth external antenna espressif 20*15.4mm 2.4 GHz Wi-Fi and Bluetooth combo chip, external antenna, https://www.espressif.com/sites/default/files/documentation/esp32-s3-mini-1_mini-1u_datasheet_en.pdf 2.4 GHz Wi-Fi and Bluetooth combo chip Single 2.4 GHz Wi-Fi Bluetooth external antenna espressif 20*15.4mm 2.4 GHz Wi-Fi and Bluetooth combo chip with U.FL connector, https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32d_esp32-wroom-32u_datasheet_en.pdf D52M ANT SoC Module https://www.thisisant.com/assets/resources/D00001687_D52_Module_Datasheet.v.2.3_(Garmin).pdf RF SoC Radio ANT Bluetooth BLE D52 nRF52 Garmin Canada Dynastream Nordic Low Power Long Range LoRa Transceiver Module LoRa Radio, RF, Module, http://www.hoperf.com/upload/rf/RFM69HW-V1.3.pdf 8 pin DIP socket | | | | | R24, R26, R28 | 3 | 100R | Resistor | | | | | | 8 | 1N4148 | 100V 0.15A standard switching diode, DO-35 | | | | | | Tayda | A-559 | | R30 | 1 | B20k | Potentiometer | | | J1 | 1 | 4.7 uF | Unpolarized capacitor | | | | | ----- | --- | ---- | ---- | ---- | ----------- | ---- | ---- | | R9, R11, R13 | 3 | 10k | Resistor | | | C12 | 3 | 10uF | Polarized capacitor | | D1, D2 | 2 pin Molex connector 2.54 mm 2x5"/>