The ESP32-CAM module is based on the ESP32-S microcontroller with a video camera and microSD card slot. This device is not very expensive and this makes it handy for IOT applications involving video streaming features...
A seven segment display is used in projects where we want to display simple digits or letters like in digital counters and clocks. It is a relatively cheaper option compared to other display devices like...
Often times we need to keep track of data from sensors installed in a given place even if we are far away from that place. This can be achieved over the internet where the sensor...
The 8051 family of microcontrollers are 8 bit microcontrollers developed by Intel in the 1980’s although today they are not as popular as other microcontrollers like the ARM, AVR and PIC microcontrollers. However if you...
The L293D motor driver IC is one of the cheap and easily available devices for controlling the speed and direction of rotation of DC and stepper motors. In this tutorial I will show you how...
Often times when using microcontrollers we may need more digital input and output pins compared to the ones available for example in projects involving the use of many sensors, displays, LEDs and switches. One of...
4 digit 7-segment displays are among the commonest display components in several of our household appliances like digital radios, clocks, refrigerators, air conditioners and many others. They are used to display information in form of...
The ability to have two or more microcontroller platforms communicating among each other enables us to perform more interesting projects including home automation, robotics, game controllers to mention but a few. This communication can be...
In a number of applications there is need to display text or characters, for example in calculators, digital clocks and other devices. This is where a Liquid Crystal Display (LCD) comes in handy. In this...
Arduino PWM output is essential in a number of applications for example in controlling the brightness of a light bulb or controlling the speed of rotation of motors. PWM stands for Pulse Width Modulation and...
