Tutorials

Ever wondered why e-book readers don't use LCDs, OLEDs, or TFT displays? This is because, with the same usage, e-paper or e-ink displays consume 0.008% power compared to a TFT display. In this article, I'll be featuring an e-ink display that can be readily used with Arduino and other microcontrollers.

Reddit's API has been piquing my curiosity for some time. However, my past experiences with APIs, especially with Twitter and Facebook have left a bad taste in my mouth. Then one day I had the courage to try it again using ESP32 and to my surprise, it's far easier than …

This site has built up several tutorials on how to measure almost anything. Now, we add to that list an Arduino pressure sensor featuring the MPS20N0040D and the HX710B Analog-to-Digital IC. By the end, you’ll be able to measure air or liquid pressure and convert it to Pascals, mmHg, or …

Have you read the MAX30100 tutorial and are still having trouble making that chip work? Maybe it’s time to use another Arduino heart rate sensor. The MAX30102 module has a better hardware design and software support. I’ll explain why after the jump.

Now that we have set up the Raspberry Pi Pico for the Arduino environment, it’s time to build real projects. First on the list is a simple motion detector using a Passive Infrared Receiver (PIR) sensor.

In my previous post, I showed how challenging it was to build code for the Raspberry Pi Pico in C/C++. Fortunately, the microcontroller is now fully supported by the Arduino IDE! This post shows you how to program the Raspberry Pi Pico as if it’s an Arduino.

Launching a project into production doesn’t mean it’s 100% finished --- this is why software/firmware updates exist. And your users are not programmers so you want the update process as user-friendly as possible. Thankfully, the ESP32 allows you to update its compiled code, called firmware, to be updated over the …

The Arduino was invented primarily for non-engineers but now, a lot of engineers are also into it. Using it in a fully-developed project is not a good look, yes, but it’s a lot quicker than building from scratch.  My only issue at the beginning is finding the best way to …

A few months after its release, I finally got a hand on the Raspberry Pi Pico. It’s a microcontroller board featuring the RP2040, but don’t expect it to be like an Arduino UNO. 

I just got my hands on a STM32F407VET black development board from China and was excited about the possible projects I can build with it. To my demise, there’s not much information about programming the board so I had to find that out by myself. This post is for those …