pcb board

Hi, I have a product idea and wanted to know if its possible to build a SD card reader with 5-10 slots?

Hello all, Today I received a PCB and after assembling it I discovered I forgot to route a voltage rail. The thing is that I am sure Altium showed no un-connected nets errors back then when I designed it. The net is highlighted below, see that both vias and pads are of the same net but not...

Hi, I have a PCB layout for which I need schematic design. Can someone create it?

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!

Hi all, Does removing the buzzer chip (FMQ) from a PCB reduce the energy the PCB uses? Also is it save to remove the buzzer? Thank you so much.

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Hello all, I made a polygon on the top and bottom solder layer that goes to the end of the board (actually even beyond). but as you can see in the below image there is still a little bit of solder mask on the board edges! is this normal or something wrong? Is it gonna look like this in the PCB...

Hello all, I want to create a solder-mask keep-out area in Altium designer 22 as in the below image. I tried using a polygon on both the top and bottom solder mask layers but I got this: Is this how is supposed to look in 3D view? Is the method I used the correct way to create solder-mask...

I have a boost converter that i want to use to step up the voltage from 12v to 15v. (https://surplustronics.co.nz/products/7589-step-up-power-module-dc-dc-boost-converter) my power supply is 12v 12.5A, and the maximum input current is 4A. to solve this, I have a 1.5ohm resistor in parallel with...

Hello everyone, I am working on a low cost vending machine with the ESP32 and as you may know, it is necessary to properly protect the components to prevent users from trying to steal money or damage the components. The PCB has a TFT display and several multiplexers to communicate the ESP32 with...

Hello everyone! Im having a problem... I got nice lighting installed in my new studio, but the lighting of my laser is controlled by audio with an onboard microphone. This is annoying because i want the laser to work also when my music isnt that loud. inside the laser is a tiny microphone on a...

Hello, I need to repair this PCB. Do you think this board can be repaired without having access to a diagram? From the image what components do you think are burned? I'm a newbie, but where I live I cannot find any place where to repair circuits and I cannot have a replacement board because...

Hello, I'm working on a little side project for my home thermostat. I recently bought a nest smart thermostat to replace my old "dumb" thermostat and ran into an issue with the wires. I don't have enough wires to accommodate all of the thermostat functions. Running new wiring is not an option...

Recently my microwave would shut off after only a minute of operation. Shut off as in a complete shut down of the machine-no power to the display and the buttons were inoperable. After unplugging and then re-plugging in the unit, it would work again but only for about 45 seconds and then shut...

Hello i am an amateur maker and i have been using gerber files attached to print my pcbs from chine where they charge the same for 1 or 2 layer pcbs but now my suplayer is charging more for 2 layer . As far as i can see the bottom layer is not necessary but i am not sure so if anybody here can...

Hi Im planning a pcb with a temperature and humidity sensor on it and I'm wondering if aluminum pcbs will have good corrosion resistance in a humid enviroment. A google search didnt turn up any info. Anyone got any experience on this? Thanks

I am designing a GPS L1(PWR=-160dBW) band Direct RF sampling receiver and the front-end: (passive antenna + LNA(21dB) + BGA1(30dB) + jumper + BPF(L1(fc=1575.42MHz,BW=15MHZ) + BGA2 (30dB) + BGA3(30dB) + VGA(-13.5 to +18 Gain Control in 0.5 dB Steps) ). all amplifiers are supplied with a +5 V...

Greetings, I've been in a design for a while for my university. It's a security system based on sound(a glass break detector) but the point of the question is not the functionality of the circuit but the EMC issue. I've tried to reduce the EMI but I would like to ask to any expert any kind of...

Looking for someone to do some teaching/consulting about some PCB's in the Dallas, Texas area. We are located in Waxahachie, TX. We are looking to pay for the educational experience. PM me here if you want more information and I'll send you my phone and email and we can go from there.

Hi, I am trying to get the mounting holes covered in the copper pour but I am not sure what would be the best way to do that. Is using the shape edit to manually edit the shape of the copper pours the only way? Any advice would be appreciated.