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BackAT45DB041E TECC508A U.Fi Class 4 Bluetooth Module without antenna Low-Power Long Range Transceiver Module LoRa Radio, RF, Module, http://www.hoperf.com/upload/rf/RFM69HW-V1.3.pdf 8 pin DIP socket | | | J7, J8, J9 | 1 | B10k | **Potentiometer, 9 mm vertical board mount | | U1 | 1 | B20k | Potentiometer | | Tayda | A-1955 | | J9 | 3 | 2N3904 | 0.2A Ic, 40V Vce, Small Signal NPN Transistor, TO-92 R16, R17, R19, R20 | 4 README.md | 5 | 22k | Resistor | | C3 | 1 Kosmo_panel | 1 | ICM7555xP | CMOS General Purpose Timer, 555 compatible, PDIP-8"/>