Do-it-yourself Bluepill PCB

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profdc9
Posts: 4
Joined: Sun Mar 08, 2020 11:21 pm

Do-it-yourself Bluepill PCB

Post by profdc9 »

Because of the proliferation of fakes of the STM32F103C8T6 going around, I made a PCB you can use if you want to roll your own. Of course, you could always buy a fake and lift swap the fake for a real part, but this board is made of more durable components. It uses very easily sourceable 0805 SMT parts and is designed to have better RFI properties. Here is the github repository:

https://github.com/profdc9/STM32surface/

Here is a picture of the PCB:
STM32surface-bare.png
STM32surface-bare.png (58.63 KiB) Viewed 1329 times

ag123
Posts: 474
Joined: Thu Dec 19, 2019 5:30 am
Answers: 1

Re: Do-it-yourself Bluepill PCB

Post by ag123 »

+1 thanks :D

zoomx
Posts: 17
Joined: Fri Dec 20, 2019 10:12 am
Location: Near Mt.Etna

Re: Do-it-yourself Bluepill PCB

Post by zoomx »

+1

cptcredible
Posts: 13
Joined: Fri Apr 24, 2020 5:03 am

Re: Do-it-yourself Bluepill PCB

Post by cptcredible »

Why does the blue pill have 2 crystals?

stas2z
Posts: 131
Joined: Mon Feb 24, 2020 8:17 pm
Answers: 8

Re: Do-it-yourself Bluepill PCB

Post by stas2z »

2nd crystal is for RTC and can feed clock in low power mode, when separate vbat provided. Usualy it have 32.768KHZ frequency.

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