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Build a Wireless “Tipping Bucket” Rain Gauge, Part 3—Receiver, PICAXE, and LCD

Here's a rain gauge that empties itself and that you can read from your easy chair. Best of all, you can build it, yourself.

August 19, 2016 by Charles R. Hampton

Build a Wireless “Tipping Bucket” Rain Gauge, Part 2—Adding the Transmitter

A tipping bucket rain gauge is a clever way to measure rainfall. Learn how to add wireless capability, a PICAXE microcontroller, and an LCD display to your weather station.

August 16, 2016 by Charles R. Hampton

Measuring Temperature with an NTC Thermistor

For this article, we are only concerned with one type of sensor that can measure temperature. This sensor is called a thermistor.

August 15, 2016 by Joseph Corleto

Build a Wireless “Tipping Bucket” Rain Gauge, Part 1—Assembling the Bucket

A tipping bucket rain gauge, an RF transmitter and receiver, a PICAXE microcontroller, and an LCD can make a great addition to your weather station.

August 09, 2016 by Charles R. Hampton

Building an RC Robot Using a Wheelchair Base—Part 2

The Sabertooth 2x32 motor controller can be used to create a robust drive platform for your next robotic endeavour. This article uses an Arduino Uno to communicate with the Sabertooth 2x32 controller.

July 13, 2016 by Mark Hughes

Control a Servo from Your PC with the Atmel SAM4S

Learn how to communicate between your PC and the SAM4S using the Atmel Software Framework’s USB module and simple ASCII commands.

April 25, 2016 by Robert Keim

Servo Control via USB with the SAM4S Xplained Pro

Part One in this two-article series focuses on the hardware setup and on using a pulse-width-modulated signal to control a servo.

April 22, 2016 by Robert Keim

Program a PIC Microcontroller as an I2C Slave Device for Custom Sensor and I/O Interfacing

No I2C interface with that sensor? No problem. Program a PIC chip as an I2C slave device for custom sensor and I/O interfacing. Here, we use three DHT22 sensors on a single I2C interface.

March 03, 2016 by Raymond Genovese

Custom PCB Design with an EFM8 Microcontroller

Tips and techniques for incorporating EFM8 microcontrollers into your custom hardware.

January 18, 2016 by Robert Keim

Measure Distance with a Sonar Sensor on an Arduino

Learn how to measure distances up to 20 ft with a sonar sensor on an Arduino!

January 16, 2016 by Alexander Fonseca

Make a Wireless Thermometer with PICAXE

Got some time and need a wireless thermometer? In this article I'll show you how to make such a thing with a few PICAXEs.

December 15, 2015 by Jens Christoffersen

Make a Wireless Thermometer with a PIC Microcontroller

Getting more familiar with a PIC MCU is a matter of working more often with it. Learn how to make a wireless thermometer with a PIC microcontroller.

December 02, 2015 by Jens Christoffersen

Introduction to the RFM69HW Transceiver

This handy introduction teaches you all about the RFM69HW transceiver module using two circuits running a wireless version of the "blinky" code.

November 05, 2015 by Benjamin Crabtree

Make a Wireless Thermometer with Arduino

Learn how to use a 433MHz RF module with an ATMega 328P-PU. In this article, we'll make a circuit with a DHT11 sensor and a RF transmitter. We'll also make a receiving circuit with a 433MHz RF receiver and an LCD display.

October 29, 2015 by Jens Christoffersen

Wireless Power for Noise-Sensitive Circuits

Is IDT’s Tx/Rx wireless power solution suitable for applications that require high-precision analog performance?

October 21, 2015 by Robert Keim

Build an Arduino-LabVIEW Analog Voltmeter

This project will show how to build a basic analog voltmeter using an Arduino Uno, LabVIEW software, and littleBits electronics modules.

October 19, 2015 by Don Wilcher

Light Bar “Relative Comfort” Thermometer with NodeMCU

Create a wireless "relative comfort" light bar thermometer by broadcasting temperature data across multiple ESP8266 modules running NodeMCU using MQTT.

September 28, 2015 by Patrick Lloyd

How to Add Bluetooth to a Ceiling Fan

How to add BLE capabilities to a wireless ceiling fan by incorporating the nRF51 in the remote control. Part of our series on the nRF51.

September 25, 2015 by Travis Fagerness

Introduction to the MQTT Protocol on NodeMCU

MQ Telemetry Transport (MQTT) is a popular low-overhead messaging protocol used by many IoT devices to communicate. This tutorial will show the user how to to set up a basic MQTT network using Python on his or her computer and an ESP8266 running the NodeMCU firmware.

September 15, 2015 by Patrick Lloyd

Make an Automatic Water Softener Reporter

Create a smart home by displaying the current salt level of your water softener with the CC3200 and a proximity sensor.

August 20, 2015 by Travis Fagerness