Main components

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Part NumberDescription
BC660KGLAA-I03-SNASA
RFM95W-868S2Low power long range transceiver module, SPI and parallel interface, 868 MHz, spreading factor 6 to12, bandwidth 7.8 to 500kHz, -111 to -148 dBm, SMD-16, DIP-16

Electro sensor schematic

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Electro sensor board layout