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The Light Alarm kit by MitchElectronics is a DIY electronics kit that lets you build an alarm that triggers upon detecting light.
The Light Alarm kit allows you to build an alarm circuit that beeps a small (but very loud) buzzer upon detecting too much light. The sensitivity of thelight sensor can be changed with the onboard potentiometer, and component values on the PCB can be changed if needed to increase or decreasethe rate of the buzzer.
Because the buzzer is a 5V device, this circuit needs a 5V supply which can be obtained using a 7805 regulator or using another MitchElectronics kitsuch as the Simple Power Supply and the Simple Power Module SMD Trainer kit. If the buzzer is removed, the board can be powered from a 9V PP3battery and an external buzzer circuit can then be used that is compatible with 9V supplies.
Product specifics
- Component Count: 20
- Battery Powered: No 5V Only
- Operating Voltage: 5V
- Operating Frequency: N/A
- Dimensions (PCB): 68mm x 34mm
- Mounting Holes: Yes 4 x M4 (60mm x 26mm)
- Prebuilt: No Kit form
- Batteries Not Included
Included in this kit
- 2 x 8 DIP Socket
- 1 x 14 DIP Socket
- 1 x LM358
- 1 x NE555
- 1 x 4013
- 1 x 100nF Capacitor
- 1 x 10uF Capacitor
- 2 x 1K Resistor
- 2 x 10K Resistor
- 1 x 56K Resistor
- 1 x 10K Potentiometer
- 2 x 1N5817 Diode
- 1 x 2N3904
- 1 x Photodetector
- 1 x Buzzer
- 1 x Tactile Switch
- 1 x Black Wire
- 1 x Red Wire
The Light Alarm kit by MitchElectronics is a DIY electronics kit that lets you build an alarm that triggers upon detecting light.
The Light Alarm kit allows you to build an alarm circuit that beeps a small (but very loud) buzzer upon detecting too much light. The sensitivity of thelight sensor can be changed with the onboard potentiometer, and component values on the PCB can be changed if needed to increase or decreasethe rate of the buzzer.
Because the buzzer is a 5V device, this circuit needs a 5V supply which can be obtained using a 7805 regulator or using another MitchElectronics kitsuch as the Simple Power Supply and the Simple Power Module SMD Trainer kit. If the buzzer is removed, the board can be powered from a 9V PP3battery and an external buzzer circuit can then be used that is compatible with 9V supplies.
Product specifics
- Component Count: 20
- Battery Powered: No 5V Only
- Operating Voltage: 5V
- Operating Frequency: N/A
- Dimensions (PCB): 68mm x 34mm
- Mounting Holes: Yes 4 x M4 (60mm x 26mm)
- Prebuilt: No Kit form
- Batteries Not Included
Included in this kit
- 2 x 8 DIP Socket
- 1 x 14 DIP Socket
- 1 x LM358
- 1 x NE555
- 1 x 4013
- 1 x 100nF Capacitor
- 1 x 10uF Capacitor
- 2 x 1K Resistor
- 2 x 10K Resistor
- 1 x 56K Resistor
- 1 x 10K Potentiometer
- 2 x 1N5817 Diode
- 1 x 2N3904
- 1 x Photodetector
- 1 x Buzzer
- 1 x Tactile Switch
- 1 x Black Wire
- 1 x Red Wire
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