RADIO CIRCUIT DIAGRAM

This circuit is designed for use with ATMEL Microcontroller ICs, specifically the AT89Sxx and ATMEGA series. It operates using the MISO, MOSI, SCK, and RESET signals. This circuit serves as a foundational interface for programming and communication with ATMEL microcontrollers,...

This circuit allows the use of an inexpensive loudspeaker as a microphone. Sound waves that reach the speaker cone cause fluctuations in the voice coil. The movement of the voice coil within the speaker's magnetic field generates a small...

RS-232 Serial Interface Status Indicator Circuit. This circuit utilizes a single logic integrated circuit (IC) to indicate the transmission (TXD) and reception (RXD) statuses of a serial interface. The RS-232 Serial Interface Status Indicator Circuit is designed to provide visual...

This custom mod gives your computer the personality of KITT, the computerized car from Knight Rider TV fame. The project is a light display which imitates the dot in KITT's hood. It looks like the scanning eye of the...

A simple electronic combination lock using the IC LS7220. This circuit employs a relay to control any device when a combination of four digits is entered. Keypads serve as the input method for entering the digits, and the correct...

The AD650 is a voltage-to-frequency (V/F) and frequency-to-voltage (F/V) converter that offers high-frequency operation and low nonlinearity, features that were previously unavailable in a monolithic form. Its inherent monotonicity in the V/F transfer function makes the AD650 suitable for...