User:ZdenekBroz/devices

Planned devices for the XO.

Devices will be connected to special unit powered by Atmel programmable CPU.

Here are some ideas for possible devices:

• Thermometer
• Voltmeter, ampermeter, ohmmeter
• Oscilloscope
• Photodiode
• PH meter

  See also the Digital Signal Processing page for work being done in India

Processor unit

processor type: C8051F321 - Full Speed USB, 16k ISP FLASH MCU Family - ETC CPU specification
cpu size: 6mm x 6mm
board size: 15mm x 30mm
case size: 20mm x 40mm (size similar to USB Bluetooth adapter )

Electrical scheme

Calculated price: CPU unit: cca 6$
board + additional electronic parts: 17$
connectors: 2$

Total price: 25$ (retail price)

Sensors

Sensors will be connected to the CPU unit. The CPU unit will measure values from the sensors and feed them into application on the XO.

Planned sensors:

• Thermometer (cca 2$)
• Voltmeter, ampermeter, ohmmeter, oscilloscope (cca 1$)
• Photodiode (cca 2$)
• PH meter

(if you find cheap sensors please add them into this list)

All existing sensors (Technical details):

• Accelerometers
  • Low-g Accelerometer
  • 25-g Accelerometer
  • 3-Axis Accelerometer
• Barometer
• Blood Pressure Sensor
• Charge Sensor
• CO2 Gas Sensor NEW DESIGN
• Colorimeter
• Conductivity Probe
• Current Probe
• Differential Voltage Probe
• Digital Control Unit
• Dissolved Oxygen Probe
• Drop Counter
• Dual-Range Force Sensor
• EKG Sensor
• Electrode Amplifier
• Flow Rate Sensor
• Force Plate
• Gas Pressure Sensor
• Garmin® eTrex Venture
• Garmin® eTrex Vista Cx NEW
• Hand Dynamometer
• Hand-Grip Heart Rate Monitor
• Instrumentation Amplifier
• Ion-Selective Electrodes
  • Calcium ISE
  • Chloride ISE
  • Ammonium ISE
  • Nitrate ISE
• Light Sensor
• Logitech QuickCam Pro 5000
• Magnetic Field Sensor
• Microphone
• Motion Detectors
  • Go! Motion
  • Motion Detector
  • CBR 2
• O2 Gas Sensor NEW DESIGN
• Ohaus Balances
• ORP Sensor
• pH Sensor
• Photogate
• Radiation Monitors
  • Radiation Monitor
  • Student Radiation Monitor
• Relative Humidity Sensor
• Respiration Monitor Belt
• Rotary Motion Sensor
• Salinity Sensor
• Sound Level Meter NEW DESIGN
• Soil Moisture Sensor
• Spectrometers
• Spirometer
• Temperature Probes
  • Stainless Steel Temperature Probe
  • Go!Temp (computers only)
  • EasyTemp (calculators only)
  • Infrared Thermometer NEW
  • Surface Temperature Sensor
  • Extra-Long Temperature Probe
  • Direct-Connect Temperature Probe
• Thermocouple
• Turbidity Sensor
• UV Sensors
• Voltage Probe
• Wireless Dynamics Sensor System

(CPU can use every sensor that can convert measurement into voltage or current)

(please submit more ideas here)

Inner links

• Open Hardware
• Measure