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802.15.4 flash crypto ATSAMR21G18 AT45DB041E TECC508A U.Fi Class 4 Bluetooth Module without antenna Low-Power Long Range Transceiver Module SMD-16 (https://www.hoperf.com/data/upload/portal/20181127/5bfcbea20e9ef.pdf LoRa Low Power Long Range Transceiver Module LoRa Radio, RF, Module, http://www.hoperf.com/upload/rf/RFM69HW-V1.3.pdf 8 pin DIP socket | | | | | | S1 | 1 | Conn_01x04 | Pin header, 2.54 mm, 1x4 Pin header, 2.54 mm, 1x2 (see [build notes](build.md)) | | | | U3 | 1 | TL071 | Operational amplifier, DIP-8 | | | R25, R27, R29 | 2 Smaller cap (476nF?) for C1 Ceramic 104s for C10, C14, might be fine, might introduce.

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