ReachFar GPS watch photo decoding problem

John Smith4 years ago

Hi, I have figured out how to request a photo from this line of smartwatches but it looks half scrambled. I know the watch works because I can get a clear photo from both the RFV45 and RFV46 using the ReachFar app (many US cellulars block their ip by DNS) and the FindMyKids app. I've double and quadruple checked that the device data was reassembled correctly (it comes in about 10 message chunks), and the format is recognized by several CLI tools to be a JPEG and also by my file manager in the preview, so it looks like the format is correct, and the hex data looks reasonably correct.. so I'm wondering if I'm not decoding the data properly. I'm trying to get one of the photos off an app to compare with no success yet.

Any one run into this issue before, or have a watch device working to send photos through the Traccar Server (home setup)?

Here is the thread I replied on and was trying to finish a How-To on photo retrieval:
https://www.traccar.org/forums/topic/command-to-receive-images-in-watch-protocol/

Also, does anyone have an example of a simple and short CLI Linux Bash script for the API? I just want to send a command to take a photo once a day from the command line using Cron, but it looks like I have to figure out how to authenticate into the API even though I'm sending from the server itself. (dont get me wrong, I'm grateful there is an API! just wishing the Traccar Linux Systemd service would take a command input from the command line - would greatly simplify a lot of coding commands to it.)