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A Minimal LoRa Sensor Node using an Atmel ATTiny84 and a HopeRF RFM95W LoRa Module (Versions 1 and 2) https://www.attno.de/
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README.md

TinyLoRa Sensor Node

Overview

A Minimalistic Sensor Node for use on TheThingsNetwork.

Case Back Case Front PCB Back

Features

  • Small Size, only 47x36x15mm populated
  • Based on widely available Atmel ATTiny84 MCU and RFM95W LoRa-module
  • 6 free GPIO-Pins from the ATTiny to connect sensors on a 2.54mm pitch header
  • Optional on-board LED for status signaling
  • Powered by a single CR2032 lithium battery
  • Long battery runtime using the ATTinys deep sleep mode
  • Integrated 6-Pin programming header
  • Small component count

Subdirectories In this Repository

  • Case: A 3D-Printable Case, OpenSCAD and STL Files
  • Firmware: Example Firmware, platformio project
  • PCB_SMD: PCB for SMD components, KiCAD project