Need a simple buzzer/LED circuit for espresso machine
139642
Water level indicator with PNP transistor
57531
How can I make a simple volumetric light on Cycles?
54572
555 timer in astable mode: How can I achieve longer low output than high?
118410
How can I replace a 4-way mechanical switch with occupancy sensor(s)?
127750
Building a voltage transformer circuit for sensing mains voltage
141266
How can I make schematic of this board?
120057
LED ceiling fixture certain diodes blinking
91437
Amplifying 10-30mV into at least 5V
6765
How can I randomise the output of a redstone circuit?
105529
Detecting state of LED to control another circuit
143835
Only charge capacitor when button pushed then turn on LED momentarily with capacitor when button released
128497
Implement MicroController Power Switch and re-use the button for other features
28361
How can I drive 12v LEDs from my Arduino Nano?
38040
Basic voltage divider issue in my amateur circuit XBee
49485
How to use a transistor to pull a pin low?
20802
Need help with a circuit diagram
140667
Is a diode needed for this simple mini solenoid circuit?