Nibbla A hardware project that focusses on versatile environmental data loggers and remote data transmission. Microcontroller STM32 Ultra Low Power MCU (ARM Cortex) External Interfaces UART SDI12 via UART (bus) RS485 via UART (bus) Ethernet via SPI Digital and PWM Remote data transmission LoRaWAN to TheThingsNetwork LTE CAT NB1 (NB-IoT) Additional components RTC SD-card reader Fuel gauge High side switches Dual power supply GNSS Debugging JTAG interface Test points GND terminal