Pauper’s Rotary Encoder
Quadrature Encoder is a familiar everyday sensor in robotics world. A quadrature encoder is a handy rotary encoder that let you know the speed and direction of a rotating shaft or linear motion. Let’s start […]
How to Build a Digital Weight Scale
Nowadays, if you want to build your own digital weight scale, it’s surprisingly easy because you only need a handful of commonly available components in addition to your favorite Arduino microcontroller board. In this primer […]
How to Play with PT100 Sensors
Recently I came across a bundle of PT100 temperature sensors (after a long time), and wanted to build a temperature sensor device with the help of an Arduino. Even though I already had a few […]
How to Play with RTC Modules
The following article is a simple guide lets you get time and calendar functions with a real time clock chip and microcontroller. Hopefully this entryway can help you to walk through your own project ideas […]
Tiny Chirp
So I have this Tiny Chirp, when you power it up, an indicator wakes up and it does a sequence of wonderful chirps! First, you need one active piezo-buzzer (i.e. the type with a built-in […]
Laptop Security Alarm
Want to keep your laptop/notebook securely? Introduced here is the idea of a simple yet effective laptop/notebook antitheft alarm device with a security cable that fits in the USB port of the laptop/notebook. The security […]
Hearing Aid DIY Kit
I was following some sellers on the internet, searching a lot more, to get a few difficult-to-get components for some other electronics projects I was planning, and then stumbled haply on a do it yourself […]
Quick Servo Tester Nano(v3)
Here’s a nice little project of a quick servo tester with Arduino Nano (v3) microcontroller board. Another key part in this basic project is a cheap Arduino Nano(v3) expansion shield. The hardware setup is extremely […]
Data Slicer Primer
Any electronics experimenter can connect an analog sensor to a microcontroller and run it with the help of a piece of code. Sometimes there’s a reason to provide a clean digital signal input to the […]
Pulse Drop Detector
In this episode, you can see a simple yet reliable idea to build your own pulse drop detector circuit which is nothing but a configurable dual-monostable setup tailored for some distinct real-world applications. The given […]