Experiments with the RCWL-0516 – Doppler Radar Distance Sensor

RCWL-0516 Microwave Proximity Sensor

The RCWL-0156 is an inexpensive yet useful proximity sensor that can be used on its own or with a microcontroller like an Arduino Uno.

The device is unique in that it uses microwaves and Doppler Radar to detect moving objects

In this article I will show you how the device works on its own and how we can add an Arduino (or two) to create some useful projects

Powering Your Electronics Projects – Voltage Regulators and Converters

Power For Your Electronics Projects

One of the most important, yet most overlooked, aspect of building a project is designing a method of giving it power. Power sources like batteries and AC adapters are only half of the answer, you still need to provide logic-level voltages to safely power your devices.

In this article we will look at several methods of providing safe regulated power for your electronic designs.

Soldering the Raspberry Pi Zero GPIO Connector

Solder Raspberry Pi Zero GPIO

Here’s a quick tip for soldering a 40-pin GPIO connector to a Raspberry Pi Zero or Zero W. While it’s not a difficult solder job the problem many folks have is getting everything aligned and held together while you do the soldering.

In this article I’ll show you a trick I use to make this job a lot easier. And unlike some other methods this one won’t sacrifice a solderless breadboard

So warm up the soldering iron and get ready to add a GPIO header to your Pi Zero!