Hi forum.
Have this project I intended to do like 10 years ago, now I finally had found time for it. So I have this little radio controller for a toy car. Unfortunately, all but the PCB remains, and I don't remember (nor worked out) the correct DC voltage - I can only guess 9V by now.
Also the...
Hi everyone
I'm not an EE by any means, i guess this could be a simple question but...
What does the letter 'B' stands in this datasheet formula?
It's found here, page 10
https://www.st.com/resource/en/datasheet/cd00000128.pdf
Simple LED circuit doubt.
Assume : I have a LED with forward voltage of 3.0 V and forward Current of 350mA.
With 9V battery, i would be calculating the required Resistance with the Ohms law :
R = ( Source Voltage - Forward Voltage) / Forward Current.
Here we dont consider the Current Ouput...
I'm new to electronics and I wanna make a circuit that will start continues connection to another circuit on pulse.
In long,
If the current circuit gets a pulse, an led (suppose) will glow and will not turn off until the battery is disconnected. I'm planning to make a laser-ldr alarm and don't...