There are a lot of Arduino-compatible boards but most of them are essentially clones. These clones are cheaper, yes, but why buy them if you can have boards that can give you MORE? A LOT MORE.

We have managed to blink an LED and use interrupts and timers with the PIC16F84A. Sadly, that’s almost all we can do with that microcontroller as it lacks features that most microcontrollers or Arduino have. From here on, we will now be using the PIC16F877A.

This project is basically a remote-controlled car that is controllable via an application installed on a Bluetooth-equipped smartphone. Here's my version of a Bluetooth RC Car.

Project Overview I was recently commissioned to create a simple project for a coffee roasting machine. Basically, I need to measure the temperature of the machine in real time to monitor the progress of the roasting process. This includes a line graph that updates every second and is viewable on …

A relay is commonly used to interface a low-current circuit to a higher-current circuit. As such, it’s very useful in controlling appliances and other mains-powered devices using microcontrollers. In this Arduino relay tutorial, I will show you how to use a relay with microcontrollers.

The MQ-7 carbon monoxide gas sensor is especially designed to be sensitive to carbon monoxide (CO) gas which is emitted by vehicles, factories, etc. Since this gas is considered toxic to humans at certain levels, the concentration of CO is used to determine the air pollution in a given area.

Project Overview This adjustable timer displays seconds, minutes, and hours and is powered by a PIC16F 877A microcontroller. There are five buttons included: start/stop, up for incrementing digits, down for decrementing digits, and left and right for moving between digits during adjustment. I’ve included a relay circuit that will trigger …

A fire or flame sensor is simply an infrared LED with an amplifier circuit. Flame radiates an infrared signal, which triggers the LED to produce current. This current is converted to voltage for an analog-to-digital converter to read. Let's see how we can build an Arduino fire detector using this …

The Nokia 3310 LCD is a cheap option for those who want to add a graphical display to their microcontroller projects. This digital thermometer project uses this LCD to display the temperature from a LM35 temperature sensor.

This project is a stepper motor controller featuring the PIC16F877A microcontroller and coded using XC8. The controller has three control buttons: start, stop, forward and reverse. The project was created with a six-wire unipolar stepper motor in mind but may work with other stepper motors with some modifications.