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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 Transceiver Module LoRa Radio, RF, Module, http://www.hoperf.com/upload/rf/RFM69HW-V1.3.pdf 8 pin DIP socket | | | | | | | | | | J2 | 1 Kosmo_panel | 1 | LM358 | Low-Power, Dual Operational Amplifiers, DIP-14/SOIC-14 | | S3 | 1 | 4.7 uF | Unpolarized capacitor | | R24, R26, R28 | 3 | 1nF | Film capacitor | | | | | D1, D2 | 2.

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