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Back- Ceramic 104s for C10, C14, might be more stable than MK's, but using fewer diodes (substituting LEDs in these is supposed to be fixed elsewhere Add schematic, start on PCB Added input resistor for sync; placed everything on PCB with on-board antenna Class 2 Bluetooth Module without antenna Low-Power Long Range LoRa Transceiver Module Low Power Long Range Transceiver Module 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 SMD-16 (https://www.hoperf.com/data/upload/portal/20181127/5bfcbea20e9ef.pdf LoRa 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 connector, https://www.te.com/commerce/DocumentDelivery/DDEController?Action=showdoc&DocId=Customer+Drawing%7F215079%7FY1%7Fpdf%7FEnglish%7FENG_CD_215079_Y1.pdf%7F215079-4 connector TE-Connectivity Micro-MaTch female-on-board top-entry thru-hole 20 pin connector, https://www.te.com/commerce/DocumentDelivery/DDEController?Action=showdoc&DocId=Customer+Drawing%7F215079%7FY1%7Fpdf%7FEnglish%7FENG_CD_215079_Y1.pdf%7F215079-4 connector TE-Connectivity Micro-MaTch female-on-board top-entry thru-hole 14 pin DIP socket A-001 1 14 pin DIP socket | | R24, R26, R28 | 3 | A1M | Potentiometer | | | | | C1, C11, C12 | 1 nF | Unpolarized capacitor | | | | R14 | 1 Hardware/lib/aoKicad | 1 | B20k | Potentiometer | | Tayda | A-804 | | S3 | 1 | 10R | Resistor | | L1 | 1 | LED | Light emitting diode, 5 mm Small Signal NPN Transistor, TO-92 | | | | D3, D4, D5, D8, D9, D10 100V 0.15A standard switching diode, DO-35"/>