Raspberry Pi Components Repair

Job ID: 37961040

Budget: $30 – $250 CAD

I AM ONLY LOOKING FOR PEOPLE LOCATED IN TORONTO/SCARBOROUGH

In my Raspberry Pi project, I'm suddenly having problems with some previously functioning components, including the LEDs, buzzer, and magnetic door lock. They've mysteriously stopped operating, without any recent changes to the wiring or connections. All of them are not turning on when tried.
The sensors on the other hand are working fine (temperature, motion sensor, pi camera)

I'm looking for an expert in Raspberry Pi with a keen understanding of its intricacies, specifically someone with experience dealing with its diverse components such as LEDs, buzzer, and magnetic door locks.

The only thing I can think of that might’ve changed is that we got this project shipped from my home country. It was working fine but when it arrived here it’s not anymore. There might be an issue with the power supply or the transistor or maybe the relay.

Key tasks include, but not limited to:
- Troubleshooting the issue; Why did they stop working?
- Repairing or suggesting suitable replacements if necessary

The issue is most probably something small as the software and code are running fine but I can’t figure it out and need someone to fix it

An error-free operation is what I'm aiming for. If you have proven experience in fixing Raspberry Pi components, please share your portfolio and past experiences.