Automative, car and motorcycle schematics(link)
- 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
- Air flow detector
- Air flow detector
- Strain gauge sensor
- 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