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. […]
BPW34 Tiny Solar Cell – Quick Revision!
Some small experiments on a cheapo soil meter I did recently remind me of the nostalgic photodiode BPW34. So, I think this is the right time for a quick review. Well, let me go further […]
Analog Audio Visualizer LEDs
I prepared this post in a hurry to help you to quickly design and build an analog audio visualizer using common light-emitting diodes. It’s not the first time I built a simple analog audio visualizer […]
Arduino Audio – Refined Primer
At this time, we’re going to generate various sounds using an Arduino microcontroller! We’ll initially make sound using a regular piezoelectric buzzer which makes use of a material that has piezoelectric properties. When a material […]
12V SLA Battery Charger Guide
Recently, I had the opportunity to test the internal electronics of several popular Router UPS devices. Honestly, most of them are useless products and will make the router sick within days. Oh, that’s another story, […]