Talk:MicroTrac Controller v17.10/Code

Code Examples

• http://www.doctormonk.com/2012/05/sparkfun-venus-gps-and-arduino.html
  • uses arduino's pin 10 for software serial

• https://www.jeremyblum.com/2011/02/27/arduino-tutorial-9-wireless-communication/

ideas

• use capital letter for relay ON and lower case letter for OFF.
• transmit continuous stream of current switch settings
• shut down if stream times out
• remote box could request gps coordinates by sending a "?"
  • onboard could resond "¿" when ready
  • remote will pause stream, onboard will broadcast gps, then continue.

notes

"The Arduino Mega has three additional serial ports: Serial1 on pins 19 (RX) and 18 (TX), Serial2 on pins 17 (RX) and 16 (TX), Serial3 on pins 15 (RX) and 14 (TX)."

xbee uses standard TX RX on arduino, GPS uses serial too will need 19 and 18

• gross bit rate = baud rate when using 1s and 0s
  • https://en.wikipedia.org/wiki/Bit_rate#Gross_bit_rate

controller setup loop

setup

enter AT command mode

print "+++"

set network ID

read EEPROM setting

ATID0x909

set destination address

controller loops

loop

read pin for LF (left track forward)

if HIGH

add "A" to string

otherwise add "a"

...

add timout time value "n" to string

if n = 8

n = 1

else n ++;

transmit string

print to serial

• read all pins and define variables
• if all 8 variables are the same as last broadcast skip serial print and start loop again
• if a variable is different broadcast new state

xbee settingz

broadcast power could be lowered

IDs and Networks

• network number 0909
• controller number 9091
  • Serial Upper 13A200
  • Serial Lower 4105E70B
• onboard number 9092
  • Serial Upper 13A200
  • Serial Lower 4105E711

Optimization

Currently the response time over the radio is about 1 second.

• options to streamline xbee settings
  • might be able to reduce the number or retries