Projects

This Arduino Altimeter project features the BMP085 atmospheric pressure sensor by Bosch. Because atmospheric pressure is directly related to altitude above sea level, we can use this sensor to determine current height with respect to the height of the oceans. The height is given in meters and is displayed on …

This Arduino motion-activated alarm features a tilt sensor for detecting movements and a piezo speaker for producing the siren sound. Introduction Basically, the tilt sensor produces a high voltage when it is tilted and a low voltage when it is placed flat on a surface. The siren is produced by …

There is, in fact, a way to create a NodeMCU ESP8266 WiFi jammer although technically, this is a deauther and not really a jammer. A jammer sends out noise on the WiFi frequency spectrum (2.4 GHz) while the program in this tutorial sends packets that disrupt the normal functions of …

This project is a simple PIC game where LEDs go on randomly one at a time. The objective is to “catch” the LED that’s on by pressing the corresponding button. For every catch, the score, displayed on a seven segment display, is incremented. The speed of the LEDs increase every …

The idea of this electronic queuing system is to display both sequence number and counter number in three seven segment displays. For example, when counter 1 presses his button, the number 1 shows up on the counter number segment. At the same time, the sequence number is incremented. This system …

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 …

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 …

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.