Flashing Light Circuit Board. He drew a small circuit diagram consisting of a relay a light bulb and a battery. It was the first circuit i ever built and it felt great.
What does the blinking light on my control board mean. The 555 timer chip is a very versatile ic because when connected correctly it can it can create pulses of current at specific time intervals decided by the resistor capacitor rc network. A very simple circuit that you can build to blink or flash leds.
When the 2 light on the heat level feed rate bar graph is flashing this indicates that the stove has lost the negative pressure it needs to operate and the connection in air switch has opened.
Pnp transistor p n 2907a qty. Resistor value 470 ohms qty. The parts list includes. It was the first circuit i ever built and it felt great.
