Bad reprogramming of dust sensor interface board

[Tor Gisvold]

- as delivered dust sensor shows raw datavalues that seem sensible
- But R0 = 0, so no computed values.

- Reprogrammed interface board (after soldering on new headers)

- Setting for first fuse gives error message (from load.sh) - all other statements are verified.

:avrdude: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100% 0.01s

avrdude: Device signature = 0x1e9311
avrdude: reading input file "0xff"
avrdude: writing efuse (1 bytes):

Writing | | 0% 0.00s ***failed;
Writing | ################################################## | 100% 0.04s

avrdude: 1 bytes of efuse written
avrdude: verifying efuse memory against 0xff:
avrdude: load data efuse data from input file 0xff:
avrdude: input file 0xff contains 1 bytes
avrdude: reading on-chip efuse data:

Reading | ################################################## | 100% 0.00s

avrdude: verifying ...
avrdude: verification error, first mismatch at byte 0x0000
0xff != 0x07
avrdude: verification error; content mismatch
"

- R0 now reads 100 ohms, but RAW is also always zero.

- Any good advice on how to proceed?