Tag: esp32 tutorials

Did you know you can export images from the freeware Gimp photo editing package and display them on a microcontroller screen? Source code from this tutorial is further down the page. In this tutorial I demonstrate how to export then display them on a Waveshare 16 bit colour OLED display connected to an ESP32 board. […]

Here’s a fun little project that builds a Star Wars Yoda inspiration quotes display using an ESP32 and SSD1351 OLED. It’s really easy to replace the images if you’re not a fan of Star Wars. This is a nice little school Computer Science project or an interesting little toy for the Star Wars fan in […]

Here’s how to display full colour images on an OLED display using an ESP32 microcontroller. I’m using the amazing Waveshare 1.5 inch OLED, which offers 16 bit colour in a resolution of 128×128 pixels. Although Waveshare have their own graphics library, this tutorial uses the popular Adafruit GFX Library. The display is compatible with the […]

In this video tutorial I demonstrate how to send MQTT messages from an ESP32 microcontroller and receive them in a C# .NET Core application. In this example I’ve used a PIR motion sensor, but it will work with any other type of sensor. MQTT works over wifi so it’s useful if you want to connect […]

Here’s how to sleep the ESP32 microcontroller then wake it up using a sensor. In this tutorial I’ve used the PIR infra red sensor, which is a commonly used motion sensor. It’s perfect for making a home security system. The source code is further down this page. Later in the video I run through some […]

Here’s a quick tutorial on how to get mini LED traffic light modules working with the ESP32. These display traffic modules have built in red, yellow (orange) and green LED lights. Source Code The source code is below so just copy and paste it into the Arduino IDE. Note that if you’re using jumper cables […]