With this circuit any number of 4017 integrated circuits can be connected in series. The circuit is from a Radio Electronics from April 1989.
The scale of this scale uses LEDs, and its accuracy depends on the number of LEDs. We found this...
This circuit found in Hands On Electronics only connects a load, which in this case is an LED. The...
The sensor of this circuit is a common silicon diode and it directly drives a small cooler with a...