Usb Lamp With Timer&dimmer (LED)

555 monostable circuit

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)

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

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