Month: March 2021
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The same circuit on breadboard. This enables me to swap components with different values to test out different configurations. For example, to make the LED blink faster. Don’t worry, I have tidied it up later, replacing those naked copper connections with proper jumper wires. And the four jumper wires in the photo connects to a…
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I drew this circuit using Fritzing’s PCB view. The result: The problem with this circuit board is the gaps were too narrow. Even with a little moisture, where will be leaking current somewhere. However, with thorough cleaning (with dish washing paste) and drying (with a hot air gun), it worked without a problem. Hot components…
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I got this diagram from https://www.instructables.com/10-Year-LED-Flasher/. There is another from https://www.hackster.io/simpletronic/10-year-led-flasher-398282 but I tried on breadboard and it didn’t seem to work. The obvious difference is the lack of a diode 1N5819 in the later. This circuit is supposed to light an LED bulb for 1/1000th of a second (1mS), every second, for 10 years,…