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Creating Novel Linux Controllers for Wearable Devices

Creating Novel Linux Controllers for Wearable Devices

Embedded and wearable systems require new ideas for input controller hardware. But older software still expects a keyboard and mouse. How do we bridge the gap without having to write kernel drivers?


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

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.


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

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.


Measuring Temperature with an NTC Thermistor

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.


Projects Aug 15, 2016 by Joseph Corleto
Build a Wireless “Tipping Bucket” Rain Gauge, Part 1—Assembling the Bucket

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.


The Progression of Bluetooth Low Energy SoCs

The Progression of Bluetooth Low Energy SoCs

Nordic’s BLE chipset is now available in both QFN and WL-CSP packages— and that shows how wearable applications are driving the Bluetooth Smart chip designs.


News Jul 21, 2016 by Majeed Ahmad
Building an RC Robot Using a Wheelchair Base—Part 2

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.


Projects Jul 13, 2016 by Mark Hughes
Microchip Produces the First Bluetooth 4.2-Compliant Devices: The RN4870 and RN4871

Microchip Produces the First Bluetooth 4.2-Compliant Devices: The RN4870 and RN4871

Microchip emerges as the first to release next-generation Bluetooth Low Energy (BLE) devices by unveiling the RN4870 and RN4871.


News Jun 27, 2016 by Dr. Steve Arar
WISP Wireless Power Platform

WISP Wireless Power Platform

The WISP microcontroller has the potential to revolutionize the way small IoT devices are powered and distributed.


News May 07, 2016 by Michael Greer
Control a Servo from Your PC with the Atmel SAM4S

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.


Projects Apr 25, 2016 by Robert Keim
Servo Control via USB with the SAM4S Xplained Pro

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.


Projects Apr 22, 2016 by Robert Keim
Program a PIC Microcontroller as an I2C Slave Device for Custom Sensor and I/O Interfacing

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.


Raspberry Pi 3 Is Here, but Is It a Worthy Successor?

Raspberry Pi 3 Is Here, but Is It a Worthy Successor?

The Raspberry Pi 3 has been released for sale, what's inside it, and what can you do with it?


News Feb 29, 2016 by Alex Udanis
Zentri’s “Silicon-to-Cloud” is Changing the IoT and M2M Game

Zentri’s “Silicon-to-Cloud” is Changing the IoT and M2M Game

An overview of Zentri's IoT and M2M Platform. Does it live up its predecessor?


News Feb 05, 2016 by Orrin Bigelow
Custom PCB Design with an EFM8 Microcontroller

Custom PCB Design with an EFM8 Microcontroller

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


Projects Jan 18, 2016 by Robert Keim
Measure Distance with a Sonar Sensor on an Arduino

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!


A Guide to the Applications of Hall Effect and Reed Switch Sensors

A Guide to the Applications of Hall Effect and Reed Switch Sensors

In the systems where custom sensors are required, it's imperative that the designer quantifies the environmental, mechanical, electrical, and magnetic parameters of the entire system so that a sensor which meets those operating conditions can be selected.


Introduction to the I2C Bus

Introduction to the I2C Bus

This article covers the essential characteristics and prominent advantages of the Inter–Integrated Circuit (aka I2C) serial-communications protocol.


Make a Wireless Thermometer with PICAXE

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.


Make a Wireless Thermometer with a PIC Microcontroller

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.