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Easy Laser Alarm Kit
| Jameco Part no. 2169580 | |
|---|---|
| Manufacturer | JAMECO KITPRO |
| Manufacturer no. | CJKIT-20829 |
| NCNR (Non-Cancelable, Non Returnable) | |
| Catalog 132 , page 164 | |
- Kit Instructions [2.8 MB ]
- Schematic [185 KB ]
Easy Laser Alarm Kit
Experience Level: BeginnerProtect your home with the Easy Laser Alarm kit. It uses a 741 op-amp and 4017 decade counter as the brain and is powered by a 9V battery. If you like, connect a 9V wall transformer to the power connections to save your batteries. The kit works by sensing the light from the laser hitting the photoresistor which lowers the resistance, once the beam is broken the resistance increases and the 741 chip sends a pulse to the 4017 which sets off the buzzer. To reset the circuit the laser must be back on the photoresistor and then you push the reset button.
If you add mirrors to reflect the laser you can protect multiple entrances at once. Check out what others are saying about the Easy Laser Alarm project build!
Please note: Due to inventory packaging methods, you may receive extra components for some products.
Kit Includes:
| Part No. | Description | |
| 24539 | LM741 Op Amp | |
| 45891 | 4017 Decade Counter | |
| 202403 | Photoresistor | |
| 315660 | Pushbutton Switch | |
| 335557 | Piezo Buzzer | |
| 18922 | Enclosure | |
| 2128067 | Battery Holder | |
| 2151128 | Laser Pointer | |
| 2155452 | Breadboard | |
| 2157159 | 1kΩ Resistor pack | |
| -- | Instructions |
Required Tools:
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