Circuit Lake » Data Acquisition

Mini Flight Telemetry Transmitter

admin — Thu, 29 Jul 2010 23:18:40 +0000

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 [...]

M16C Based Energy Analyzer

admin — Sat, 24 Jul 2010 02:48:30 +0000

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. It is possible to measure starting time of [...]

AVR Based Rocket Telemetry Payload

admin — Wed, 07 Jul 2010 02:20:56 +0000

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, [...]

Electricity and Gas Meters Logging Station

admin — Mon, 31 May 2010 19:46:45 +0000

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 [...]

AVR Based Car Diagnostic Tools

admin — Fri, 14 May 2010 23:41:35 +0000

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 [...]

ECG Primer

admin — Tue, 27 Apr 2010 22:52:45 +0000

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 [...]

Magnetic Stripe Card Reader

admin — Sun, 07 Mar 2010 23:46:55 +0000

This AVR-based magnetic stripe card reader will read the data from track 1 of a credit card, or any other card that uses a similar format, and will send it out an RS232 port where it can be displayed on a PC using any communications program. There can be up to three tracks used on magnetic [...]