badzz / wd03-utils Goto Github PK

What are the prerequisites to use this? From the source it looks like the package kmod-i2c-ralink is needed. Are there any others? Does the /dev/i2c-0 device need to be manually created as it is not showing up for me after I installed kmod-i2c-ralink? All I see in dmesg about i2c is:
[ 17.316092] i2c /dev entries driver

Thanks

I tried OpenWrt then I wanted to go back to stock firmware so I sadly uploaded it from OpenWrt and bricked.

As I did't found your email I am trying to contact you because I found this thread

Hope you can help me and sorry about bothering you this way

EDIT: Some people said the method is the same as WD03

Hello Matthias,
i am using the Ravpower WD03 and got managed to run OpenWRT on it. I would like to get also some battery status of the device.
I would like to ask if you can give a quick how to of using your utils.
I already installed kmod-i2c-core but stuck using your header and the c file.
Would be happy if you can help out here with a quick how-to.

Many Thanks
Andreas

Hi @badzz,
In your post, you said you could help with the fw. It appears that Ravpower has removed it from their website so I'm no longer able to get it from them.

Any chance you can help track down the fw-7620-WiFiDGRJ-RAVPower-RP-WD03-2.000.074 file, assuming that's the latest?

Hi,

Sorry, not so much a problem / issue, but not sure how else to ask this - and likely good to capture? How to include this utility in an OpenWrt build? Just copy the directory somewhere, and "enable" it (somehow)?

Thanks!

Every once in a while a reading comes back wrong. Looking into this I found that the wrong reading is actually the result from the previous mode. To correct this a delay is needed after setting the mode and before reading the value. Doing some experimentation it looks like 10ms is enough (could go to 15 to be cautious). So with a delay of:
#define DELAY_NS 10000000
in a nanosleep after the i2c_smbus_write_byte_data call I have seen no incorrect readings.
req.tv_sec = 0;
req.tv_nsec = DELAY_NS;
if(nanosleep(&req, NULL)) printf("nanosleep failed\n");