Basic Logic chips have been around for a very long time, yet they are still used in new designs. An understanding of how basic logic chips work will move your design skills up a notch.
Today we will look at the most elementary of logic chips, the basic gates. We’ll also learn about logic families, and we’ll see how to create a logic chip emulator using an Arduino.
We’ll finish up by designing a simple intruder alarm using an Arduino and a basic logic gate.
Today we will look at a few different ways to drive a servo motor with an ESP32 microcontroller.
We’ll be using a replacement for the Arduino Servo Library and recompiling classic Arduino servo sketches to work with the ESP32.
We will also drive multiple servos with a PCA9685 PWM module and build a web-based servo motor control.
The built-in CSI camera connector is one of the great features of the Raspberry Pi. Adding video capabilities can really bring your project up to the next level.
Today we will take a detailed look at the Raspberry Pi Camera. We’ll see how it works, how to use it and we’ll compare different models to see which one looks best.
Today we will look at the amazing ESP32-CAM module from A-Thinker. This 10-dollar module features a 2MP camera, microSD card socket, WiFi, and Bluetooth.
Unlike other ESP32 modules this one does not have a USB port, so you’ll need to use an FTDI adapter to get it working.
In this article I’ll show you how to work with the ESP32-CAM and how to resolve common power and antenna issues.
Matrix Keypads are a great way to add a professional-looking user interface to your Arduino project. They are inexpensive, and very easy to use.
In this article I’ll show you how to use a matrix keypad with an Arduino. We will also use our keypad to build a simple electronic combination lock with an LCD display.
A Raspberry Pi case is more than just a box, it also can have drastic effects on performance. The case can affect heat dissipation, WiFi performance and access to the GPIO and other connectors.
In this article, and the accompanying video, I’ll test a number of cases to see how they perform under stress. I’ll also show you how you can use utilities like Stressberry and iPerf to check your own enclosures for the Raspberry Pi.
Time to move up to another microcontroller, the ESP32. This amazing device has multiple I/O ports, WiFi, Bluetooth and BLE, analog inputs and outputs and many, many more features!
Today we will get started with the ESP32 by setting up the Arduino IDE as our programming environment and going through some of the example sketches.
In this rather shifty article I’ll show you how to use some fundamental electronic building blocks – shift registers.
These handy devices can let you add oodles of input and output ports to your Arduino or other microcontrollers, and they’re very easy to use..
Follow along and learn how to make 74HC165 and 74HC595 shift registers work for you.
The Raspberry Pi GPIO is a 40-pin connector that allows you to connect your Pi to the outside world and use it with the same sensors and output devices you’d use on an Arduino.
Today we will learn to use the GPIO and give our projects the power of a microcomputer using Python and the gpiozero library.
I2C address conflicts are a common problem, and in this article, I’ll show you how to resolve them by creating multiple I2C buses with your Arduino.,/p>
I’ll demonstrate how the TCA9548A I2C Multiplexer works by using two identical OLED displays and sending them unique data even though they share the same I2C address.,/p>