Electroniclovers123
#1 LDR LED Blinking Effect.
1.Some parts needs in this project.
2.Soldering.
3.Finished.
#2 Automatic USB Light.
1.Some parts needs in this project.
2.Soldering.
3.Finished.
1.Some parts needs in this project.
2.Soldering.
3.Finished.
Product list:
9v Battery: https://www.utsource.net/itm/p/1899471.html
Soldering Iron: https://www.utsource.net/itm/p/8423764.html
PCB Board: https://www.utsource.net/Home/PCBService
LED: https://www.utsource.net/itm/p/1886498.html
Heat Shrink Tube: https://www.utsource.net/itm/p/6466015.html
BC547/ BC548: https://www.utsource.net/itm/p/382309.html
Resistor: https://www.utsource.net/itm/p/8445573.html
Capacitor: https://www.utsource.net/itm/p/9267199.html
Buzzer: https://www.utsource.net/itm/p/9221609.html
More details, pls check the video on Youtube:
UTSOURCE
Jake Robinson
You need to study diodes behaviour, particularly led's. Even if you think that works, it doesn't. In the 2nd part, try to measure voltages and currents and you will see the USB port is totally saturated and can burn quite fast.