is it possible to use the fuel guage with the rp2040 feather without soldering or a breadboard?
my setup has a rp2040 with cpv7 installed with correct libraries connected to the fuel guage using stemma qt cable, li ion with jst connecters. when i try to use the example cp code it gives me an error on line 8 about missing pullups... any idea what could be wrong?
LC709203F with feather rp2040 pullup error
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- jasonwoodland
- Posts: 21
- Joined: Sat Oct 23, 2021 11:10 am
- dastels
- Posts: 15655
- Joined: Tue Oct 20, 2015 3:22 pm
Re: LC709203F with feather rp2040 pullup error
Yes, if you have STEMMA-QT on your RP2040 board all you need is the STEAMMA-QT cable. The complaint about no pullups is a glitch with CP. Try a full restart. I haven't figured out exactly why but it happens occasionally.
Dave
Dave
- jasonwoodland
- Posts: 21
- Joined: Sat Oct 23, 2021 11:10 am
Re: LC709203F with feather rp2040 pullup error
thanks for the reply, the rp2040 board in use is the adafruit feather rp2040... its product page says the connector on it is stemma-qt and im using an adafruit stemma-qt cable to interface with the fuel guage.
What exactly do u mean by full restart? reloading circuit python and fuel guage libraries and try the example cp code again from the learn guide? ive tried just pressing reset on the feather with no success.
What exactly do u mean by full restart? reloading circuit python and fuel guage libraries and try the example cp code again from the learn guide? ive tried just pressing reset on the feather with no success.
- dastels
- Posts: 15655
- Joined: Tue Oct 20, 2015 3:22 pm
Re: LC709203F with feather rp2040 pullup error
At the very least a full power down and restart. Reinstallation shouldn't be required. Hardware-wise you are doing everything right... don't worry about that.
Dave
Dave
- jasonwoodland
- Posts: 21
- Joined: Sat Oct 23, 2021 11:10 am
Re: LC709203F with feather rp2040 pullup error
complete power cycle restart didnt work, downgrading the feather rp2040 to final cp6 release and related lib files have the learn guide code working without getting the pullup error now so yay... more testing needed but seems there may be trouble with cp7 and/or updated bundle libs?!
Please be positive and constructive with your questions and comments.