DC3-5V Simple Metal Detector Electronics Kit DIY Teaching Metal Detection Kit
2: The appearance is small and exquisite
3: Wide range of uses, game entertainment, security inspection, search of metal products on the body, etc.
4: High sensitivity
5: Soldering Learning DIY Kit
Supply voltage: DC3-5V
Battery model: CR2032 (not include)
Dimensions: 14.9*2.2CM
Uses: game entertainment, security inspection, search for metal products on the body, etc.
Example 1: If you want to detect whether there is a car passing by on a certain road, because the height of the car chassis is 0.5 meters or more from the road, and the cement will be buried at a depth of 5-10CM, so you can bury a coil with a diameter of 1 meter on the ground. Stable, accurate and reliable detection of whether there is a car on it is of great practical value in highway traffic statistics and parking lot prohibited area statistics.
Example 2: A sensor is required on each floor of the elevator controller to detect whether the elevator has reached the stop position. If a mechanical travel switch is used, there will be life and reliability factors; if a photocoupler is used, there will be a long time Dust deposition failure; therefore, the only way is to install a metal detector to determine whether the circuit is on or off based on the presence or absence of metal. This will have high practical value in many equipment and machines.
1 x PCB board
1 x 3V Buzzer
1 x 100UF25V electrolytic capacitor
1 x 220K 0.25W Resistor
1 x 2.2K 0.25W Resistor
1 x 100 ohm blue and white potentiometer
1 x 9018 triode
1 x 9015 triode
1 x 9012 triode
1 x 12D07 toggle open
1 x 2032 battery holder
2 x 104 ceramic capacitors
2 x 222 polyester capacitors
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