The light meter circuit is a tool, measure the quantity of light, widely used to a photography, To decide the correctness of the exposure. Sometimes, we are use with other works, such as my son likes to use in science experiments, which do not need to have high quality. This simple light meter in figure [...]
We like to collecting the electronic circuits, to the idea of building easy electronic projects. Under different scenarios.
The some circuit is not obsolete. For example, I wanted to create a simple flashing light circuit for my son. We are available multiple circuits, From a simple two transistor circuit which can be carved from Old PCB,In storage rooms.
Or electronics stores to buy are very cheap. Or, we use the number of IC NE555 is a very popular one.
As usual the function generator will be expensive and difficult.However, this is a simple circuit with only two ICs. This circuit is suitable for experiments. The output is 3 waveform , Square wave signal amplitude 7Vp-p, Triangular wave = 2Vp-vp and sine wave = 2Vp-p all have the frequency 1kHz. We use 2 x LM1458 [...]
This is an idea for a light detection circuit. We use the 555 timer IC.Usually, we used to produce frequency (astable multivibrator) a lot easier. The single IC with a a few resistors and capacitors, adjust value them to control the frequency output.Can drive speakers directly, as the buzzer sounds.The CDs LDR is a resistor [...]
We can bring the inverter CMOS digital IC is CD4049 Hex Inverting Buffer IC, to design the Square wave oscillator generator circuit diagram or Simple Pulse Generator circuits, to a lot circuit been simplified. The circuit we use a little equipment, just add a resistor and capacitor are the only one,It uses less energy. The [...]