noobie

Hi, I am an electronics noob. I have some questions regarding a particular application. I have to move a small cylindrical rod using a solenoid (whose capacity is 1.5kg lifting force and rated at 12V). My application requires me to energize the solenoid only when I get a signal from somewhere...

Hi Got asked by a friend to try and fix this «speaker» but for me it looks like the circuit is burned. Is that true? I also have no experience in fixing and soldering a pcb board, so should i just throw it away? Thanks for your time!

Hello all, First of all I'm a complete newbie about circuits and electronics. I recently bought a 3D printer and I saw this project on thingiverse. Quick sum up : LEDs (WS2812) lamp controlled by an ESP8266. The main issue is that the firmware of the ESP8266 provided to control the LEDs do...