A passive transmitarray is designed based on cost-effective PCB technology. In the active feed section, high-power direct up-conversion active transmitter circuits are utilized alongside higher-order ...

ESP32 is a tiny cheap 8$ module with a dual core 32-bit CPU and built in Wi-Fi and dual-mode Bluetooth with sufficient amount of 30 I/O pins for all basic electronics projects. All these features are ...

At this point it’s pretty well-known that you can tack a long wire to the Raspberry Pi’s GPIO, install some software, and you’ve got yourself the worlds easiest pirate FM radio station.

This time, [Afroman] explains how frequency modulation works while building up a short-range FM transmitter on a board he has available at OSH Park. The design is based on a MAX2606 voltage ...