martind-cz / stm32f1-open-source-multimeter Goto Github PK

The last commit is 4 years ago, what happened since then?

lcd.printf((char*)"%4.2f V", adc1_getReading(VBAT) * 2 * VSUP / 4096);

if I understand right you are multiplying the adc values X2 then using 2.99f/4096

I'm wondering why you had to earlier multiply by 2?

If you were to replace the STM32F! with an iCE40 FPGA
https://www.youtube.com/watch?v=SOn0g3k0FlE
http://www.clifford.at/icestorm/

Your multimeter will allow more expansive enhancements in the future

I was wondering if you could release a precompiled hex. I havent had any luck with geting Kali to compile it right with out errors it seems as if it might be easier to flash the hex with st32 flashing utilty. Thanks if you can

Someone posted this to Hacker News, and there's some good feedback which may be useful for future improvement ideas if you're interested: 😄

    https://news.ycombinator.com/item?id=20238741

What is the purpose of R9 the 5 mOhm resistor? Is it so there's always a 5 mOhm load even if nothing is connected to plug P1? Thanks.

@MartinD-CZ Hi! Please, can you add a LICENSE file to the project, because according to GitHub:

"You're under no obligation to choose a license. However, without a license, the default copyright laws apply, meaning that you retain all rights to your source code and no one may reproduce, distribute, or create derivative works from your work. If you're creating an open source project, we strongly encourage you to include an open source license. The Open Source Guide provides additional guidance on choosing the correct license for your project."