Sensors

Open Datalogging Project

to start with the two main sensors available will be light and temperature. It is intended to extend the project to allow the use of standard 1v sensors.

For the simple sensors, the input will be from a potential divider based around a Light Dependent Resistor (LDR) or Thermistor. This will be passed to the modulation input of the 555 circuit. This is then smoothed at this point by the addition of a 10pF capacitor

Diagram to follow.

This material is published under an appropriate free and open licence - circuits and worksheets under Creative Commons and the software under the GPL.

If you wish to help with this project please contact Richard Rothwell - richard@indca.co.uk