This relay card can be controlled by low power signals, starting at approx. 5 mA. Ideal as a switch amplifier for other kits which only have a LED output but have to drive relays to control other equipment.
Kemo4024028011974
Price: £8.99 from Conrad Electronic
| Stockist | Price | |
|---|---|---|
| £8.99 | Visit Store |
Switches a relay when light or dark (shadow) is sensed. Whenever the light beam from a lamp projected onto doors, windows or similar is interrupted by a person, the device produces an alarm. Can also be used as a dimmer switch.
At 3 V operating voltage can only 1 LED per channel can be connected. At 6 V operating voltage, up to 2 LEDs per channel can be connected. Except for the blinking electronics are currently 2 capacitors and 2 resistors. Of the resistors is only one resistor...
2 different colored LEDS flash alternately. The flashing sequence is adjustable. The operating voltage is 6 - 12 V/DC.Thus, the indicator for battery operation on a 9 V transistor battery.Application: For the Railway Modeling (model railway crossings),...