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cnlohr / ch32v003fun

Open source minimal stack for the ch32 line of WCH processors, including the ch32v003, a 10¢ 48 MHz RISC-V Microcontroller - as well as many other chips within the ch32v/x line.
MIT License
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Is this board right for me? #295

Closed LimesKey closed 3 weeks ago

LimesKey commented 5 months ago

Hi, I'm planning on using CH32V003J4M6 for an upcoming PCB hardware project of mine but I'm not sure if this is viable for what I want it to do. I couldn't find a better place to ask a question to those experienced with this board specifically so I'm posting here.

My use case for this microcontroller is to light up a couple of LEDs for 10 minutes when a specific pin receives power. I'm using this board as a simple battery power indicator for a LIR2032 battery which has a DW01A battery management system controller with OC (overcharge) and OD (over-discharge) pins connected to a MOSFET. image

When the OC or OD pin is set to "low" (mosfet triggered, no power to pin) I would like it to turn on a specific LED for a time delay depending on if it was caused by either OC or OD. image

Please let me know if you'd like me to clarify anyone, I'm only a novice in PCB design and RISC-V microcontrollers.

prosper00 commented 5 months ago

seems pretty straightforward, really any microcontroller ought to handle that.

Jumping straight into ch32v as a complete newb might be a bit of a steep learning curve though. Depending on your background.

take a look at the example GPIO code in this repo as a starting point

LimesKey commented 5 months ago

I'm creating a PCB for an upcoming event so I need to know if it works before my deadline. I've ordered all the necessary parts from AliExpress but their shipping takes at least 2 - 5 weeks and ordering the PCB takes a week. Would someone be able to confirm this would work with the flasher and code?

From AliExpress, I've ordered the WCH-LinkE Mini and a few ESP32s. But I'm now planning on integrating a USB-C port right into the PCB to flash the CH32V003J4M6 module using this guide. I've also been hoping I can just use the regular Arduino IDE and write code similarly to other Arduino projects, I'm planning on using this for that.

Photos below are of my new design 2024-03-27 10_20_09-HackerBadgePCBV2 pdf - HackerBadgePCBV2 pdf — Mozilla Firefox 2024-03-27 10_20_16-HackerBadgePCBV2 pdf - HackerBadgePCBV2 pdf — Mozilla Firefox

cnlohr commented 5 months ago

This looks weeeird. image

Also, I've not used the SOIC-8 version with USB so I just don't know.

Regardless, it's going to be very hard to get everything right on the first go.

LimesKey commented 5 months ago

I fixed that right after I sent the message. Well thanks though

vegetablesalad commented 5 months ago

Honestly just using some 555 latches or any other "analog" approach might be way easier here. Especially if this is a one time project you need to get it up running quickly.