Superhet Receiver on a 40-Meter Popcorn Version

This Superhet Receiver does not require AGC or RF control since it has satisfactory large signal handling capability as it operates with 4MHz intermediate frequency.

R/C Pulse to PWM Converter with 2 Channels

Two easily formed R/C pulse signals are converted into a PWM signal suitable for driving small motors as it uses an AVR chip and software.

RFID Tag Spoofer Based on Arduino

The purpose of the project is to spoof a simple low frequency 125kHz RFID tag with the use of an Arduino and only a few components.

2-Meter HT Radios for BASIC Stamps RF Communication

A set of 2-mter handheld radio transceivers along with Tigertronics RTX-12 Radio Modem were used in this project to provide a simple and functional result between microcontrollers long range data transmission.

RC Pulse Generator

The purpose of the project is to measure resistance values and generate R/C style pulses suitable for driving servos or testing R/C controlled robots without the transmitter as it uses an Atmel AT90S2313 AVR processor.

FM Receiver with a Single Transistor

This project contains a very unique one transistor FM receiver  accompanied by homemade air-core coils and a homemade fixed capacitor.