Introduction: Usb Lamp With Timer&dimmer (LED)
555 monostable circuit
Step 1: YOU'LL NEED:
You'll need:
555 timer IC
Resistors (10ohm, 200k, 1k)
Capacitors (0.6mF, 10nF)
Stripboard
Pushbutton
Slide switch
Diode
Potentiometers (500k, 10k)
Soldering iron & solder
Usb cable( cut off the head that goes to your mobile device, ignore the green and whit wire, what you need is the black and red wire for your power source)
Step 2: Schematic
the period depends on the values of C1 and R2; Rpot1 sets a minimum or maximum period
tmax= 1.1* C1*(R2+Rpot1)
tmin=1.1*C1*R2
Step 3: Soldering and Testing
Step 4: Building a Case/stand for Your Lamp
I cut out holes to which will give me access to the power source, pushbutton, potentiometer, led's and slide switch
after making sure everything was in place, i painted the box and then installed the circuit in the box