这是介绍TFT液晶的资料,详细介绍了TFT液晶的工作原理、显示原理,深入介绍TFT驱动板的设计。-introduced TFT LCD detailed information on the TFT LCD principle, the revelation principle, TFT-driven insights on the design of the plate.
Protect your mobile phone from
unauthorised use or theft using
this simple circuit. It can generate
a loud chirping sound when somebody
attempts to take away the mobile
handset. The added feature is that
the circuit also works as a mobile
charger.
This circuit automatically turns on a
night lamp when bedroom light is
switched off. The lamp remains
‘on’ until the light sensor senses daylight
in the morning. A super-bright white
LED is used as the night lamp. It gives
bright and cool light in the room. When
the sensor detects the daylight in the
morning, a melodious morning alarm
sounds.
The