Circuit Lake

The RS232 Data Logger is entirely a software solution to log data using the ATmega169 AVR Butterfly The unit is used side by side with existing products or your homemade projects which has UART capability but it is not able to store much data for an extended time duration. AVR Butterfly has UART and [...]

Morse Beacon is small transmitter that can send flight telemetry to earth from a small balloon or model plane like temperature and battery voltage, Call Sign identification and a sequence number for logging purposes. The design is made around an ATtiny13 microcontroller, a LM35 centigrade temperature sensor (or LM34 Fahrenheit), a RF module, and [...]

Energy Analyzer project is M16C/62P microcontroller-based power and energy data logger with ability to read voltage and current RMS values, power factor, real power and energy, harmonic contents etc. Besides the basic measurements, the circuit is capable of signal acquiring to detailed analysis in time and frequency.

The purpose of the high altitude rocket telemetry payload was to design and develop a flexible flight computer to be flown onboard reusable mid and high powered model rockets. Since these designs are to be flown on relatively small rockets, size and weight were of paramount importance to the payload developed. At the same time, [...]

The FALCO is an AT90CAN128 microcontroller-based logging station for electricity and gas meters. The system has camera module looking at the measuring gauge (display) of meter. The recognition procedure provides the absolute value of flowed energy and is periodically logged into persistent memory. Beyond this camera, FALCO has additional 9 pulse inputs for monitoring usual [...]

This project focuses on tapping into GM pre-1996 car and light truck diagnostic information. These systems are commonly referred to as OBDI, or ALDL (Assembly Line Diagnostic Link). They are based, in part, on the GM-specific 8192-baud ALDL standard that was used starting in the 1986 model year through 1995. The data stream definitions used [...]

The project is built for detecting human ECG (Electrocardiogram or EKG). The ECG Primer consists of 3 main parts : an extern ECG amplifier circuit for signal conditioning, the STM32 on-chip mixed signal processing peripherals for the data acquisition and the software handler for rending the ECG data and delivering ECG data to the USB [...]