Learn electronics, coding, and projects — step by step.
After successfully accessing the SD Card with Arduino Uno the crude way (by soldering directly to SD card pins), I thought of making an mp3 player :). As a caveat, this design is not recommended for a daily mp3 player but it does play and I am happy with it. BILL OF MATERIALS So let’s […]
I feel obligated to post this tutorial after seeing beginners assigning two serial devices to Arduino Uno hardware serial pin which is digital pin 0 (Rx) and digital pin 1 (Tx). Connecting two serial devices results to undefined behavior due to conflicting signals. Arduino Uno, Arduino Nano, and Arduino Mini has only 1 serial port. […]
I wonder if I can interface SD card to a microcontroller without using any adapter or shield. After a quick search of SD card pinout in google, I found out that SPI is use in order to communicate with SD card. To minimize my effort, I then search for some reference and below are my […]
Today we are going to tinker something easy and simple but interesting. We will be exploring something musical by taking advantage of microcontrollers capability to produce voltage signals. Our goal is to produce a melody using and Arduino Uno and a speaker. The theory behind this is by generating a square wave signal and controlling […]
This project is an 8-Degrees-Of-Freedom Robot. It is called 8-DOF-Robot because it has 8 servo motors. It has 2 servos for the left and right ankle, 2 servos for the left and right knee, 2 servos for the left and right hips, and 2 servos for the left and right shoulder. No movement for the […]