Arduino

How to stop an Arduino program

You may be wondering how to stop an Arduino program that you’ve written, but it’s not a computer that you open to do a task and close once it’s done. Nothing will be broken if you close it on the spot since you’re not handling writing to files and the like. A microcontroller such as…

How much current can I draw from an Arduino Uno?

When planning the power supply for a project a common question is how much current can I draw from an Arduino? The current you can draw depends on where you are drawing it from the board. On the other hand, regardless of where you’re drawing it from, all of the current you draw add up…

How many Arduino shields can be stacked?

Arduino shields are a great way to expand the features of the standard Arduino by adding on new hardware. They are a specific kind of expansion module that are meant to be stacked on top of the Arduino, covering it completely. In most cases, it also exposes the full set of pins from the Arduino,…

HC-SR04 Ultrasonic Sensor with Arduino

To detect objects at a distance in your Arduino projects, the HC-SR04 ultrasonic sensor is a common option. It comes as a board that’s easy to integrate in your projects, and it can be bought for pretty cheap. To learn more about this sensor I built a quick project on a breadboard to test it…

Building the Geekcreit® DIY L298N Autonomous Robot Car

A few weeks ago while I was shopping on Banggood for new parts I wanted to try out, I came across this great robot kit from Geekcreit. The Geekcreit┬« L298N 2WD Motor Ultrasonic Robot Car Kit (Banggood) is based on an Arduino board and includes many parts I was looking to purchase separately such as:…

Buying Electronics Parts Online Cheaply

When I first got started in electronics, just getting started was a lot more expensive. Just programming a chip would require a 50$+ dollar USB programmer, and Arduino was still a very new project. A few years after this I heard about eBay as a source of cheap parts, and everything had changed! You could…