Reddit:Electronics

Bench

Next I want to look into making some registers, and maybe solder some cable with pins to act as a bus. Also want to buy smaller resistors, they are HUGE

This circuit can detect 7 different colors (red, green, blue, yellow, cyan, magenta, white) without any kind of microcontroller just with ldr and rgb led and bunch of ics like 555 timer that provides a clock pulse for 4017 ic so it can light up the rgb led with each pin separated from the other and shift register to save the data from the op amp which is connected to the ldr and bunch of diodes as rom memory and 7 segment display to show the first letter of the color.

Managed to save this from the dump yesterday. The thing apperas to be extremely rare as there is no info on it even in Russian internet segment. No ICs inside, only transistors.

I made a AND gate on a through hole board. Took a while (1hrs 30 mins) but it was worth it. Try to guess how old I am. (Hint): under 20yo.

I’m 14 and this is my electronics setup. Got into it about 2 months ago and fun fact, I did my first soldiering job today (just soldered some pins onto an rfid scanner) but it was sooo fun!!

I don't know how to program any of these chips but it's better to be curious than smart. I just ordered different ones to see what they can do. All of these boards are new besides the Wemos board.

Hello everyone,

could someone tell me where I found the datasheet for this module "Mitsubishi J2-Q03A-D" I can't find it on the Web, very possible it's an IGBT, I want to know what's burnt too

Thanks

It even comes with a light if it's too dark. Incredible!

It may look small (ring for scale) but it sure is mighty with a max volume of 110db. I 3d printed a case too. What do you think?