Progress on the coupler programming

Next things to do:

• Make the serial data port very very simple
• Perhaps use the onboard serial port
• Figure out how to get it log in remotely over wifi
• Read a configuration file
• Set up a system to configure upper and lower bounds of the servo (rate one turns)
• Split the status check for minimum navigation, position, and garmin aviation string
• Perhaps include something for waypoints
• Perhaps include a wide and a narrow band for the coupler
• Pull apart the old coupler and test it on the old servo and capacitor
• fiddle with the resistors to balance the brightness of yellow and green LED
• Figure out some kind of case
• wipe out old log files every now and then (shell script on setup should do)

 Completed:

• Set it to 9600 baud
• prepared a log file system
• added all three LED
• added both switches
• added the photo-resistor and auto-dimming
• Figure out how to read a button and de-bounce it properly
• Set up the state space machine for various modes
• Boots up and operates
• Can compile and execute C code
• Wrote the low level serial port interface
• Read data from the Garmin simulator 
• Parse the strings
• Calculate the desired course and the current track
• Calculate a course that will intercept the current track
• Calculate a position for a 180 degree servo that would turn the aircraft accordingly
• Hooked up a PWM controller for LED and servos
• Blinked an LED and turned a servo motor
• Write out a log file
• Prepare a status light for reading data