The kit acts as an automated on/off switch (temperature dependable). This temperature activated project kit is also available as a light activated project kit. The output of the board can be used to control other electronic circuits, turning them on automatically when it goes light, dark, hot or cold. The board has space for an LED with current limit resistor (both available separately) which will https://elecena.pl/product/16395863/heat-activated-switch 2020-04-06 https://elecena.pl/product/16395863/heat-activated-switch 2020-09-01 https://elecena.pl/product/16395863/heat-activated-switch 2021-03-02 https://elecena.pl/product/16395863/heat-activated-switch 2025-07-09