| Prevent runaway RC vehicles with this failsafe system! Using an ATtiny85 microcontroller and an optocoupler, this project monitors the radio...
| Prevent runaway RC vehicles with this failsafe system! Using an ATtiny85 microcontroller and an optocoupler, this project monitors the radio...
| Imagine tracking an object with pinpoint accuracy — within centimeters — across a 25 m × 25 m area. Now, what if you could do this using sou...
| Want to build a compact Bluetooth speaker with ESP32 and MAX98357A amplifier? With this project, you can stream high-quality audio using A2D...
| You can create your own digital stereo FM transmitter with a Raspberry Pi Pico and KT0803L module. Learn how to configure and broadcast FM s...
| The Quectel M95FA GSM/GPRS shield cannot be used with the Arduino Uno without some (easy, but neccessary) hardware modifications.
| El-cheapo wireless doorbells across the globe are so unoriginal it makes you wonder how much more e-rubbish we can tolerate in and around ou...
| For those who like to experiment with wireless power here is a circuit capable of delivering almost 50 watts with 88% efficiency from a supp...
| If wires and cables keep cluttering your desktop then you may be interested in wireless measuring and data-logging instruments. The SmartPro...
| My wife is a teacher. She needed a system to run the games she organizes in class. These games are question-and-answer quizzes; the system h...
| This is an update of the Nixie Thermometer/Hygrometer (110321-I) published in the June 2012 issue of our magazine. In the original design a...