avrdude_for_🐥

#!/bin/sh

printf "Detecting USB port, reset your controller now."
ls /dev/tty* > /tmp/1
while [ -z $USB ]; do
  sleep 0.5
  printf "."
  ls /dev/tty* > /tmp/2
  USB=`comm -13 /tmp/1 /tmp/2 | grep -o '/dev/tty.*'`
  mv /tmp/2 /tmp/1
done

echo ""
echo "Device $USB has appeared; assuming it is the controller."

printf "Waiting for $USB to become writable."
while [ ! -w "$USB" ]; do
  sleep 0.5; printf "."; 
done;

echo ""

avrdude -p atmega32u4 -c avr109 -P $USB -U flash:w:$1