Arduino & Square Wave Thoughts
The theory behind generating square wave is almost a trivial thing! A square wave is a signal that changes between high and low state where the primary requirement is that the on-time (high state) and […]
Arduino in Synth World
This post is just an introduction to how Arduino can be used with synthesizers. So, lower your expectations first, this is not ready-to-go do-it-yourself project documentation. Still interested? OK, get ready to move on! What’s […]
RS-485 & Arduino – Quick Primer
RS-485 is a standard serial protocol, with bus topology where you can connect several devices in a very cheap and cheerful way. Here will be explained how to begin your Arduino + RS-485 projects. Okay, […]
Arduino PID – An Introduction
PID Controller is the most common control algorithm used for more precise and accurate control of various parameters in industrial automation & applications. Most often these are used for the regulation of temperature, pressure, speed, […]
Cheap CH551G MCU with USB Controller – Part 1
It was during Christmas week last year that I received an unexpected gift packet from an online store in India. What caught my immediate attention in that collection was the very small microcontroller chip CH551G. […]
Analog Optocouplers – Quick Starter
The prime intention behind this little post is to share some notes about analog optocouplers which might be useful for hobbyists, students, etc. I know many novices who want to learn the secrets of analog […]
HR202 Resistive Humidity Sensor – Half-Baked!
Electronics are sensitive to extremes of humidity, and moisture seems to be a key contributor to a variety of electronic-system failures. Conductivity in devices can be modified by high humidity, which can lead to corrosion […]
BJT & Diode Temperature Sensors – A Quick Walk
When it comes to everyday temperature sensing, the thermistor is the most simple and inexpensive component to get temperature data at ease. That’s fine, but in this article, I’ll explain how to use common bipolar […]
Arduino pulseIn() Primer
A while ago someone asked me via email how to read a pulse input on an Arduino I/O pin. So, I decided to write a short note about that. Let me know in the comment […]
Learn to Use Arduino MF Shield
I have just chanced the need to read some sensors for another personal project. However, the project needs a couple of blinkers and beepers apart from the intended sensors. So, I figure to just use […]