In this project, you'll learn how to wire an LED and flash it using the Raspberry Pi. Also, to isolate the Raspberry Pi's + 3.3VDC compliant output pins from supply voltages greater than this power source, an opto-isolator will be introduced as well.
December 11, 2015 by Don Wilcher
Programmable thermostats can save a lot of energy and money. But you don't have to buy one. You can convert an old mechanical thermostat into a programmable thermostat using an Arduino and a servo.
November 18, 2015 by Jason Poel Smith
This article demonstrates how to use the built-in die temperature sensor on the nRF51. The die temperature is not the same as ambient temperature, but can be calibrated to ambient temperature by using a correction factor.
October 05, 2015 by Travis Fagerness
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