thanks. tried again as admin in command promt avrdude -c usbtiny -p m644 -F -U flash:firmware2.0.2.hex and get this
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.01s
avrdude: Device signature = 0x1e9609
avrdude: NOTE: FLASH memory has been specified, an erase cycle will be performed
To disable this feature, specify the -D option.
avrdude: erasing chip
avrdude: reading input file “firmware2.0.0.hex”
avrdude: error opening firmware2.0.0.hex: No such file or directory
avrdude: input file firmware2.0.0.hex auto detected as invalid format
avrdude: can’t open input file firmware2.0.0.hex: No such file or directory
avrdude: read from file ‘firmware2.0.0.hex’ failed
avrdude: safemode: Fuses OK
avrdude done. Thank you.
usb tiny shows in device manager ,files unzipped but don’t allow access.Tried the master file in open sprinkler mint firmware 2.0.0hex same error,usb tiny shows in devices. what next thanks richard