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Air flow detector

Air flow detector

Strain gauge sensor

Datalogger based on 68HC11

Digital Water Wave/Tide/Level Meter (PIC16F876)

Self made data-logger V2.5 (second edition)

Magnetometer

Analog input section based on AD9220

uModem 4+4/8 channel A/D board

ADXL202 accelerometer to CV output

Light direction sensor

12-Bit ADC interface

Digital thermometer

Universal flight controllers / datalogger

Rain detector

Home Brew Compass Sensor

Using 555 Timer as an A/D converter

ADC0804LCN 8-bit A/D converter

Web-based thermometer project

ADC-x RS232 Interface Schematic (PDF)

Low Flow-Rate Thermal Flowmeter

Geiger counter

Differential Capacitance Measurement for Tilt Meter

Honey Bee counter (PDF)

Capacitance type liquid level measurement (PDF)

Thermostat node schematic

Digital PC Oscilloscope

Ultrasonic Range & Imager

Network of RS485 temperature sensors

Digital compass schematic

Temperature datalogger

Accelerometer Schematic

Serial Port A/D-converter

Centronics port D/A converters and low-pass filter

LCD Thermometer

Wireless Liquid Level Sensing for Restaurant Applications

Pressure Sensor-Based Altimeter Circuit

Ultrasonic range finder circuit

8-bit analog to digital converter (ADC)

Clockless analog to digital converter

Low-resolution BCD analog to digital converter

AD converter with tracking / sample-hold

Analog to digital converter with switching preamplifier

Simple flash A/D converter

Low-cost A/D converter

Logarithmic A/D encoder

1-wire barometer

Water-level sensor

Addressable ADC

Wireless weater station