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BackFlash crypto ATSAMR21G18 AT45DB041E TECC508A U.Fi Class 4 Bluetooth Module without antenna Low-Power Long Range Transceiver Module THT-16 (https://www.hoperf.com/data/upload/portal/20181127/5bfcbea20e9ef.pdf Low Power Long Range Transceiver Module LoRa Radio, RF, Module, http://www.hoperf.com/upload/rf/RFM69HW-V1.3.pdf 8 pin DIP socket A-001 1 14 pin DIP socket | | | | R4, R12, R13 | 3 | 2N3904 | 0.2A Ic, 40V Vce, Small Signal NPN Transistor, TO-92 | | | Tayda | A-1624 or A-2969 | | | U3 | 1 | LED | Light emitting diode Push button switch, generic, two pins | | J12 | 1 | 2_pin_Molex_header | KK254 Molex connector KK254 Molex header 2.54 mm 2x5 | | | Tayda | A-559 | | | | U2 | 1 | LM358 | Low-Power, Dual Operational Amplifiers, DIP-8/SOIC-8/TO-99-8 | | R16, R18, R26 | 3 | AudioJack2 | Audio Jack, 2 Poles (Mono / TS) | | J1 | 1 | B10k | Potentiometer | | R25 | 1 | AudioJack2_SwitchT | Audio Jack, 2 Poles (Mono / TS)"/>