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PROJECT
217

Arduino Low Power - Creating a LoRa IoT Node That Runs off Batteries

By ShawnHymel

We build on our previous LoRa IoT weather sensor to run for a year on 2x AAA batteries. We'll look at the AVR ATmega328p datasheet to determine which registers we need to use to put the microcontroller to sleep, and we'll calculate how long we need to sleep before sampling the sensor again.

PROJECT
52

AVR-Based Serial Enabled LCDs Hookup Guide

By SparkFun Electronics

The AVR-based serial enabled LCD (a.k.a. SerLCD) is a simple and cost effective solution for adding Liquid Crystal Displays (LCDs) into your project.

PROJECT
642

Getting Started with Electroluminescent (EL) Wire

By SparkFun Electronics

When creating projects that glow, nothing beats EL wire.

PROJECT
44

Using Flask to Send Data to a Raspberry Pi

By SparkFun Electronics

In this tutorial, we’ll show you how to send data from cheap WiFi nodes to a Raspberry Pi over an internal WiFi network.