21700

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A portable LoRa communicator. Custom 4-layer PCB (ESP32-S3 + E22P-915M30S LoRa + NEO-M9N GNSS), designed in KiCad for 915 MHz.

pcb lora gnss mesh-networking jlcpcb hardawre sx1262 meshtastic neo-m9n esp32-s3 meshcore 21700

Konfigurator pakietów akumulatorów 18650/21700: kalkulator, rysunki połączeń, dobór taśmy, druk PDF, generator G-code (FluidNC/GRBL)

gcode grbl bms 18650 lithium-ion spot-welding spot-welder battery-pack fluidnc 21700 nickel-strip

Arduino-based N-channel charger and discharge tester for Li-ion batteries.

arduino battery arduino-nano charger 18650 battery-health li-ion li-ion-battery li-ion-charger battery-tester 21700

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