With its low part count this Easy Build Timer Project Kit makes a good introduction to electronics. The timer uses a resistor capacitor network to provide a time delay of between 1 second and 4 minutes, which is set by the PCB mount variable resistor. When the button is pressed the LED changes from red to green, then at the end of the time interval it turns red.
Features:
- Easy build timer project kit.
- Variable timer.
Contents:
- 1 x 2xAA Battery Cage with Leads.
- 2 x 10K Resistors.
- 1 x 47R Resistor.
- 1 x PCB trimmer 1M POT.
- 1 x Electrolytic Capacitor, 10V, 1 mF.
- 3 x BC558 PNP Transistor.
- 1 x Tri-colour 5mm Diffused LED – 650mCd.
- 1 x 6mm PCB Mount Tactile Switch, 9.5mm Height.
- 1 x Easy Build Timer Project Kit PCB.
Dimensions:
- PCB Length: 54mm.
- PCB Width: 26mm.
Requires:
- 2 x AA Batteries.
- Soldering Iron.
- Solder.
Resources:
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Click here to download the essential information.
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Click here to download the full teaching resources.
This kit is supplied in a blister retail packaging. It is also available in a simple grip seal bag and bulk quantities for more details on this version click here.
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