When my Pi-top is charged I'd unplug it from the wall but immediately the pi top would turn off. For a while all i'd have to do is try to remember to shut down when its charged then unplug it. However, perhaps i forgot to do that one to many times now I get no indication of battery charge, nor does the pi top power up without being plugged into the wall. Its become highly inconvenient and Im not sure whats damaged or how to fix it, what can be done?Thank you very much
I am able to run the i2cdetect with the resulting matrix table - all 0's except a 0b in the 00:b address.
I am running the Raspbian Stretch on my pi-top - just did an update / upgrade and still have the same compile errors.
Did you use the accompanying "make" file?
And this to run: sudo ./m_access-4.
I tried a second pi-top and got no errors.
It looks like a missing library to me.
gcc -Wall -o m_access-4 m_access-4.c -lpigpio -lrt
chmod +x m_access-4
On my system, both make file and .c file are together in the "downloads" folder.
Hope this solves it.
When I remove "-lpigpio -lrt" from the end of the second line of the "make" file, then I get exactly the same error messages as you get.
Please use the "make" file that sits together with the .c file.
Please let me know how it goes.
Ivo - OK, I finally found where the make file is located and was able to compile. I did receive a warning during compile, but it completed anyway. The warning was
m_access-4.c: In function 'main':
m_access-4.c:305:13: warning: variable 'n' set but not used [-Wunused-but-set-variable]
I ran the program, and received a warning on the third line of output, but it kept running for a bit, now seems to be hung.
*** Texas Instruments bq40z60 status tool v0.9a - 29/07/18 09:25 ***
pigpio initialization OK
i2c open OK
0x0001 Device Type : 0x0046
i2c write command failed
- [1:0] Device Number : 0x0000
- [3:2] Version : 0x0000
- [5:4] Build Number : 0x0000
-  Firmware Type : 0x00
- [8:7] Impedance Track Version : 0x0000
-  Reserved - Do not use : 0x00
-  Reserved - Do not use : 0x00
0x0003 Hardware Version : 0x200
I'm attaching the full screendump here.
Alexandra, may I suggest you ask Rene? He's much more the expert about what version of hardware goes with what version of software.
Your batteries, that's another matter. The cells on itself don't drain even not over a longer period. I guess you got a complete new base, and as such the Smart Battery was connected all those months.
On Github there is stuff written by Rene and myself.
Never seen so low a cells:
0x003C CellVoltage4 : 290 mV
0x003D CellVoltage3 : 1013 mV
0x003E CellVoltage2 : 258 mV
0x003F CellVoltage1 : 1080 mV
"Precharge" won't help either, far too low.
I'll upload a newer version of my tool later today.
I found the new version and compiled / ran. The program completed normally. Note, I also burned a new image of the latest Polaris OS and am running on that now. It seemed to help with the i2c reads/writes - didn't get any errors in the program run. Attached is the output.
What do I do now? Should the batteries be charging now or is there anything else I need to do? The little battery icon in the bottom right says "Charging: 0%" (but has been on 0% for about 10-15 minutes now...)
It looks grim:
- all 4 cells are far below 2500 mV
- balancing does not work in v13 of the SBS firmware
- SBS cannot be uncoupled from the cells
- SBS firmware is password protected
How comfortable do you feel handling multimeter, adjustable labo power supply both for tension and current?
Do you hold a degree in Electronics, either trough schooling, on the job training, amateur radio, ...
Ivo - I'm comfortable w/ multimeter and power supplies. Don't have an adjustable one, but can probably put my hands on one from a friend. My background in electronics is mainly from my tinkering at home. I'm mechanical engineering by schooling and trade - with some basic electronics thrown in. I've designed and prototyped some basic boards for the various projects I've done around the house. (AC / DC motor control, sensors, programming...)
I'm viewing this as a learning exercise mainly - I have a replacement battery already on the way from pi-top. So if I end up frying my existing battery, no big deal... If you're OK with providing some direction and pointers from your own experiences, I'm willing to do some tinkering.
Kenneth, my amateur radio callsign oscar november four india victor uniform at uba dot be.
Both my pi-top v1 and v2 run perfectly, not a single glitch.
I often let them deplete their battery packs without an issue.