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The first momentary switch is connected to the power supply of the circuit. By pushing the cardboard-button, the inside alu foil is touching alu foil and closes the circuit,the motors are on/off. | The first momentary switch is connected to the power supply of the circuit. By pushing the cardboard-button, the inside alu foil is touching alu foil and closes the circuit, the motors are on/off. | ||
The second momentary switch works the same way, but is connected to a relay. When metal touches metal the polarity changes | |||
The second momentary switch works the same way, but is connected to a DPDT-relay. When metal touches metal the polarity reverses which changes the direction of the attached motors. |
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