OpenSprinkler › Forums › OpenSprinkler Unified Firmware › Announcing OpenSprinkler Unified Firmware 2.1.7 › Reply To: Announcing OpenSprinkler Unified Firmware 2.1.7
April 12, 2017 at 11:23 pm
#45861
Ray
Keymaster
If you have version 2.0, you do not need to use external programmer: 2.0 has built-in USBtiny programmer. You can directly update firmware using the firmware updater. Using external programmer is only relevant to OS 2.1. You should not change the fuse bits on OS 2.0.