Running feature changes available in CHANGELOG

The base branch is up-to-date as of Rev 642 (2021-12-13) in open source.

I've put the hex files and basic scripts for AVRDude for this Anduril 2 fork in the hex_files directory. If you're looking for the open source Anduril 2 hex files (current as of 2021/11/29), they're in the open_source_hex_files directory.

If you're on a Mac or Linux and use Homebrew:

1. brew install avrdude

using your flash kit, while holding the pogo-pins to the head of your light:

1. run flash_test.sh to verify communication with the light.
2. run flash_light.sh -h to see specific lights with shortcuts to use with -l, or -f to point to a specific file.

If you're on a Mac or Linux and use Homebrew:

1. brew tap osx-cross/avr
2. brew install avr-gcc (only if you plan to make your own changes)

make your changes in /flashlight-firmware/anduril2/ToyKeeper/spaghetti-monster/anduril

run build-all.sh. This will generate .hex files for you, which you can then flash to your light.

from the hex_files directory, run flash_move_hex.sh to move them into the hex_files directory if you wish.

If you want to use the CLI I wrote to simplify this process:

1. make code changes in /flashlight-firmware/anduril2/ToyKeeper/spaghetti-monster/anduril
2. run code/flash_build.sh. This will create your hex files and move them to the hex_files directory.
3. if you have a D4V2, D4SV2, KR4, or KR1, you can use hex_files/flash_light.sh -h to find the light in that list, and build it by running flash_light.sh -l <option>. If not, use flash_light.sh -f <filename>.

(using flash_light.sh -l with the appropriate light will select the right hex file for you)

1. use noctigon-kr4-nofet.hex for KR1, anything with a E21A LEDs.
2. use noctigon-kr4.hex for a D4V2 using a KR4 driver.
3. using flash_light.sh -f is currently hard-coded to use -p t1634, which works with Emisar/Noctigon lights, but possibly not others. You may need to adjust this for your own purposes.

1. https://budgetlightforum.com/node/68263 for how to flash
2. Emisar/Noctigon reflashing kit: https://intl-outdoor.com/reflashing-kits.html
3. Anduril 2 open source hex files from ToyKeeper (including anduril-manual.txt): http://toykeeper.net/torches/fsm/anduril2/
4. Anduril 2 source code: https://launchpad.net/flashlight-firmware