Circuit Lake

The Simple Wireless Security System is a security system that includes a ZigBee wireless door sensor and a PC interface. The door sensor mounts near the garage doors, and it detects the open/closed state using reed switches and magnets. The Atmel Attiny45 microcontroller fits in nicely with design because of its small size, low [...]

The wireless servo controller project build to control of two servo motors wirelessly. It can be use as wireless camera tracking or other robotics project. Both receiver and transmitter use a 24G 2.4GHz wireless modules. The receiver use PIC18LF2550 microcontroller with firmware written using CCS PIC C compile.

This data logger project based on firmware-only USB implementation. There are two part in this project, transmitter and receiver. The transmitter consist of ATTiny45 microcontroller, a SHT11 sensor (digital temperature and humidity sensor) and a hoperf RFM12 868 MHz transceiver module. The transmitter powered by 2 AA cells. While the receiver uses ATMega8 µC and [...]

This is a Serial interface to IR converter project using PIC microcontroller. The project use Infra-Red to receive and transmit the data from serial interface. RS232 waveforms in this project operating at 5V TTL levels not +/-12V levels. It’s good to transmit your sequence of bits modulated as a series wirelessly.