After completing the Mega Drive version of the arcade cabinet, I decided to make another one, a "child" unit to go with it. The subject this time is the Mega Drive Mini.The basic frame is repurposed ...

Last time, we learned about the anode and cathode of an LED, how to distinguish their orientation, and the role of a resistor in limiting current.This time, we will combine an Arduino, a breadboard, ...

Home Assistant is a great way to rig up and manage your smart home and its many and varied devices. You can of course control ...

The flip-flop, aka latch, can also be understood as Bistable Multivibrator as two stable states. Generally, these latch ...

Connect LEDs to Arduino digital pins Use resistors to protect LEDs Control LED states with digitalWrite() Create timing sequences with delay() Build a repeating control loop in Arduino code These same ...

State-of-the-art soft materials can be engineered as sensors and actuators, yet, methods for learning from external information remain a subject of current research. Inspired by the use of large ...

You might think that CD players and DVD players have had their run, but as it turns out, they are absolute goldmines for DIY projects. Pop one open and you'll find stepper motors, laser assemblies, ...

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The Arduino Opta micro programmable logic controller (PLC) provides a unique entry point into the automation field. Automation fields like smart homes, process controls, and robotics are project areas ...

Waveshare ESP32-S3-Zero is a tiny (23.5×18 mm) module based on Espressif ESP32-S3 WiFi 4 and BLE microcontroller with two rows of nine through holes plus 16 pads for GPIOs, a USB-C port for power and ...

I assembled the main body of the microscope using individually-purchased LEGO bricks. Instead of using motors and gears from LEGO Technic, I designed custom actuators using FreeCAD software and ...