Steve, are you referring to the changes in formware 1.8.3 (vs the previous version 1.8.2)? The changes are all documented in the GitHub commit messages, and README.txt. For example, the commit message of 1.8.3 says:
main changes are 1) added back support for concurrent running mode; 2) new ‘device_id’ option which allows modifying the last byte of the controller’s mac address.
I was referring to Dan’s post about his blog using Raspberry Pi with OpenSprinkler. In his zip file there is a OpenSprinkler hex file which is described as:
“A modified version of the OpenSprinkler firmware”. I did not find the source code to the mods or what exactly was changed.
I am following your blog to have opnensprinkler in my rasperry pi and get stuck in point 7.3
-Follow the instructions on the OpenSprinkler web site to flash the OpenSprinkler with the precompiled modified firmware. This is only necessary if you will be hosting the files for OpenSprinkler’s web interface on the Pi.
My cuestion is how to flash the OpenSprinkler with the precompiled modified firmware?
Didn’t see anything in the posts specifically about Pi Zero. I just bought my OSPi kit and a Pi Zero W H. The Pi has built-in WiFi and has the GPIO header installed. Ordered from AdaFruit for $14 plus $4.71 shipping. Hooked it up the OSPi board and it seems to work great. Haven’t connected to sprinklers yet but all functions appear usable. Saves a lot of trouble having both wifi and the GPIO header.