Data acquisition (DAQ) and data logging schematics

• 1-Wire Barometer Project
• 4 Bit Digitizer / flash ADC using discrete components
• 8 Photo-Detector Circuit Board
• A PIC Based Temperature Data Logger
• Acceleration Sensor Network
• Accelerometer Schematic
• Accelerometer with microcontroller and display
• ADC logger 6ch Measurent and serial port logger with wireless longrange link
• Addressable ADC
• ADXL202 break-out board
• Analog input section based on AD9220
• Atmel Mega32 8ch Analog signal measure logger
• Capacitance type liquid level measurement (PDF)
• Centronics port D/A converters and low-pass filter
• Connect a NTC with a wheatstone bridge to a normal AD-Input
• Data Acquisition & Logging System Using AT89c51 and Visual Basic
• Data Acquisition System using ATmega8
• Home Brew Compass Sensor
• Honey Bee counter (PDF)
• Low cost gyro / accelerometer combo sensor
• Making an LM35 temperature recorder (based on PIC12F675) - logs to EEPROM
• Making an LM35 temperature recorder (based on PIC12F675) - serial output
• Photodiode / phototransistor application circuit diagrams including a logarithmic amplifier (PDF)
• Precision Digital Altimeter
• Pressure Sensor-Based Altimeter Circuit
• Rain detector
• Remote digital thermometer sends data over AC power line
• Self made data-logger V2.5 (second edition)
• Serial interface (RS232) I/O card suitable for data acquisition
• Serial Port A/D-converter
• Simple Analog to Digital Converter using ADC0808 that displays output using LEDs
• Simple device for connecting serial instrument with RS485 or RS232 to the internet
• Simple RS422 Converter for Minilogger
• Strain gauge sensor interface
• Thermostat node schematic
• Transducer Amplifiers
• Ultrasonic Range Finder & Imager
• Ultrasonic range finder circuit
• USB datalogger - simple-to-use, long-term measurement solution
• Using a 555 Timer as an A/D converter
• Voltage follower with 1G ohm input resistance
• Water-level sensor
• Wind speed logger
• Wind speed logger Mk2
• Wireless Liquid Level Sensing for Restaurant Applications
• Wireless weater station
• XL-DIG 3-axis Accelerometer board - 3-axis digital I2C/SPI accelerometer board