Archives: Projects
Using the BLE functionality of the ESP32
One of the most beautiful features which the ESP32 has over the ESP-12e is the fact that, asides the WiFi, it has two other communication modules onboard. The ESP32 comes with an onboard Classic Bluetooth and Bluetooth Low Energy modules. For today's tutorial, we will explore how the...
Continue ReadingESP32 Webserver Tutorial
One of the most interesting project we can build while learning to work with a WiFi Based board is a web Server. As we continue the journey to learn how to build projects with the ESP32, we will examine how to build a simple web Server with the ESP32. A Web server is essentially a...
Continue ReadingUSB to +/-5V Voltage DC-DC switching Converter
Now days USB power source is very common and available in many devices and power banks. This DC-DC converter provide -5V negative voltage from +5V USB power source. This converter can be used in a wide range of industrial automation control equipment, sensors, isolated operational...
Continue ReadingArduino Menu Tutorial with a Rotary Encoder and a Nokia 5110 LCD display
In our last tutorial, we examined how to create a menu for your Arduino project on a Nokia 5110 LCD, with push buttons to navigate through it. In today's tutorial, we will build a modified version of it which will make use a rotary encoder (in place of the push buttons) for menu...
Continue ReadingUsing Interrupts with Arduino
We can say that an Interrupt is an automatic transfer of software execution in response to a hardware event that is asynchronous with the current software execution. As it's name says, interrupts, "interrupt" the normal program flow to perform an action (run another code block, function,...
Continue ReadingMenu on Nokia 5110 LCD display with Arduino
We have published quite a number of tutorials using different displays with the Arduino, with the most recent being the tutorial on displaying graphics on all kind of displays with Arduino. For today's tutorial, we will look into achieving more with displays by implementing a menu based...
Continue ReadingGetting Started with ESP32
Over the last few articles, we have covered the use of ESP8266 boards for building several WiFi based projects. For today’s tutorial, we will look at it's recently released successor; the ESP32. As mentioned in previous tutorials, ESP-12e module popularly referred as the...
Continue ReadingProgrammable Day-Night Light Controller based on ATmega8
A low-cost, easy-to-build, high-power LED controller with a built-in programmable timer. The main objective of this project is to design a maintenance free and low-cost light which automatically turns on and off at the predetermined time of the day. This kind of light helps...
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