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I, like most Windows users and I suspect many Mac and Linux users have some difficulty each time I update f/w in my Opensprinkler. Is it possible to add this feature to an otherwise great product?
Sorry, that’s not possible currently as it will require changing the bootloader. I am not sure if it’s possible to implement a SD card bootloader within 4KB limit.
I wondered about that myself. It is a pity though as the current procedure is problematic for Windows users.
Frankly I am not so fond of the microSD approach: think about having to open the case, take out the SD card, copy a file to it, put it back and close the case…
The current procedure is really only problematic for Windows 8 (and perhaps also the latest Windows 7 64-bit) users. The driver works fine on other Windows versions. The main issue with Windows 8 is that it enforces signed drivers, the only way to get these open-source drivers installed is to reboot the system into a mode that disables driver signature enforcement. It’s doable, just involves more mouse clicks.
For those who need USBtinyISP, they now have signed drivers: https://learn.adafruit.com/usbtinyisp/drivers
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