The Internet of Things (IoT) has transformed how we interact with one another and our environment. As devices become smarter and more connected, do-it-yourself (DIY) projects have become increasingly popular. One such project involves developing a distance meter using the ESP32, a versatile microcontroller with built-in Wi-FI, Bluetooth connectivity, and diverse capabilities. This project highlights…
How to design a power supply for Raspberry Pi
In this do-it-yourself circuit, we’ll design a Raspberry Pi (RPi) power supply. First, we’ll create a list to follow as a blueprint for the circuit, ensuring we design it correctly. Let’s start with a list of our goals for the circuit. Goals 1. A steady power supply: Ensure RPi receives a consistent and stable…
How to design a rechargeable LED table lamp
In this mini do-it-yourself (DIY) project, we’ll design an LED table lamp that’s battery-operated and rechargeable. It will also feature light dimming so you can adjust the lamp. There are two basic types of lamps available on the market. A typical one with a 3 to 5-W LED bulb that works on a 230 V…