555 light tester circuit diagram


Posted on Mar 28, 2007

As shown constituting the photoelectric conversion by the photoelectric sensors and switches 555, etc., issued by a music song to prompt IC2. Illuminance sensor parts are made


555 light tester circuit diagram
Click here to download the full size of the above Circuit.

of photovoltaic cells 2CR33. When light is lower than the most suitable for learning 100 lux illumination, 2CR33 was high resistance, VT1 off nearly 555 was 2 feet high (greater than 1/3Vdd 2V), 555 in the reset state, 3 feet was low, music IC2 (9300) issued by the sound of music was electric. When debugging, the 15W light bulb for the light from the lamp 0.3m battery in place, its illumination of about 100 lux. Adjust RP1, make 9300 just does not sound, shifting slightly farther away, the sound.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

McCAD PCB software
Interfacing Alphanumeric LCD To Microcontroller
Hybrid Electrostatic Amplifier
Schematics
switch mode power supply What does frequency foldback do in a switching regulator
interfacing of led wiht avr atmega16
theremin
MS6712 4 Stereo Inputs And 4-Channel Outputs Volume Tone Balance Fader Loudness And Selectable Input Gain
Signal Chain Basics Audio metering enjoying the VU
lm 3915 vu meter
555 electronic circuit diagram of a Christmas tree



Top