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PCB Arrived

A project log for Discrete Component 555 Timer (SMD)

Building a 555 timer out of SMD components

gordonGordon 04/24/2025 at 16:340 Comments

I think this was the fastest PCB shipment I ever got from JLPCB.

The smd components from LCSC are still in the mail. I'm really crossing my fingers here hoping I routed everything correctly and it works on the first go. Knowing how things go if that happens I'll be surprised. I do not have an oscilloscope so if there are issues it will take a while to diagnose.

I also made and ordered a PCB at same time for the dual 555 timer metal detector. The original build was on a protoboard with lots of wires.

555 Timer PCB front and back:

Dual 555 timer Metal Detector PCB:

I dont have an oven or a hot plate, so the first assembled 555 timer will all be done wit a soldering iron. It will be very tedious.

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