Toy Car Signal Light & Siren
This post showcases an example project I made to help you add a terrific signal light and siren to almost all toy cars. As we all know, cheap remote control (radio control) toy cars (R/C […]
Pool LED Lamps & Idea Sparks
Recently while searching for little floating toys, I came across some inexpensive Chinese LED pool lamps. Most sellers described them as water-activated lotus/lily LED flower lamps. Out of curiosity, I purchased a few of them […]
Raspberry Pi Pico & Little Light Stick (v1)
A couple of months after its release, ultimately, I got a hand on the Raspberry Pi Pico, and posted a few hobby projects here. The RPi Pico is a microcontroller board centered on the RP2040 which’s […]
Raspberry Pi Pico – Light & Sound Maker!
This title is a bit exaggerated, I agree, but the following writeup is actually about controlling LEDs and Buzzers using Raspberry Pi Pico. At first, this may seem like a simple topic, but here you […]
Quick OLED Thermometer v1
After getting my new soldering iron tip thermometer, I got inspired by that idea and decided to design a quick digital thermometer for general use. By the way, the soldering iron tip thermometer is an […]
Funny TV Faker (v1)
The Funny TV Faker project presented here is in fact a portable TV Light Simulator. A commercial television light simulator device has a bunch of flashing and flickering lamps to simulate the light of a […]
Economic Ear Scout v1
Nostalgia is often caused by something that reminds you of a happy time. Is it not so? Oh, I’m not into nostalgia, but looking back to find some wonders from the past. So, let me […]
Arduino PCM Audio Primer
In this primer, we’ll learn how to play an audio file thru Arduino without using any external modules. Here we’re going to use the pulse code modulation (PCM) audio technique with the help of a […]
KA2284 LED Level Meter v1
It’s not always necessary to have a costly microcontroller to make a fancy sound level meter or battery level meter. Of course, there’re still a lot of old ways to try those ideas. A good […]
Jio M2S Router & Battery Hack
Jio M2S router is a sleek and stylish portable device useful to connect up to 10 Wi-Fi-enabled devices. JioFi allows you to connect up to 32 devices, and you can carry JioFi everywhere you go. […]