PIC = Position Independent Code

• = Pilot in Command
• = Penguin in Car
• ???

testing 1 2

• leader for PPTP and Netrek
• Software engineering
• went bush 1999
• work for HP
• Unix/VMS support

Hobby

• PIC Microcontrollers
• Linux world domination market
• fun
• small gadgets cool
• skills required
• not that difficult or expensive
• bike light blink you email address in Morse code

microcontroller

• this one dead
• small
• RS232
• closed source silicon
• instructions well documented
• lots of nice tools on Linux
• 8 pin to 40 pin
• package type sometimes legs come out sideways
• you can get it to do things
• very must,
• not much power
• RISC
• 35 instructions
• data, code in separate memories
• won’t run Linux
• one register
• 12C309, 12F84, 12FS877
• 8k program memory
• $3, $12, $45
• flash or EPROM
• ram registers

PCBs

• non-free eagle
• can cut without chemicals

safety

• ware safety glasses, in case of exploding components
• check earth pins connecting, prevent 120V static build up

device programmer, to program chip via serial port

• plug chip into device to test, distribution phase

design

• paper and xcircuit
• xcircuit, vi like, slow to learn easy to use
• Dia
• GNU EDA
• xspread
• non-free program better?

source code

• vi, emacs
• gpasm
• sdcc - small device c compiler
• picforth - forth compiler
• make
• gpsim - GTK+ GUI for simulating PIC, faster then PIC itself

programming

• picprg - IO programmer
• prog84 - parallel port /dev/port
• odyssey - new, last 1-3 weeks, everything for everybody

programmers

• Kitsrus Kit 96
  • free fly on connector
• Asa Micros
  • also comes with free fly
  • serial port
• Dontronics DT001
  • serial support to PIC
  • dontronics.com
  • $20 - $30 dollars
• can’t replace parallel IO port on laptop
• external power supply required

resources

• PIClist - high volume list
  • subject line policing
  • proprietary people, can’t always help
• GNU PIC
  • proponents open source
• #electronics on freenode

skipper

• open source program allows disabled access to computer
• suck & blow interface
• sponsored by Microsoft

projects

• light box
• chin control arm trigger
  • raise and lower chin control arm
• radio controlled train
  • cable remote
  • cable span around kid until plug pulled out
  • speed control of motor via radio control
• Cachlear implant centre
  • light up bays of toys randomly
  • avoid frequency of implant
• Speedometer
  • requires laptop for display
  • powered by serial port
  • curses program for displaying speed
  • data comes from PIC, delays in timing on laptop don’t matter
  • interrupts on PIC
  • on interrupt every bit transmission time on PIC
• random led flasher
  • whats that for?
  • its blinking; its working
  • why does it need to have a better reason
• temperature sensor –> serial line
  • printed circuit board
  • made into kit
  • open source
  • 2400 bps
  • Gnuplot
  • after demonstration of measuring body temperature: therefore I am not cool
• serial terminal, LCD panel, keypad
• irrigation controller
  • keep context after reset
• pump controller
  • pump water from well
  • once we got it going, it sucked
• alarm control, 24 hour clock
  • easy to set
  • type in time
  • serial port and temperature sensor
  • quietly wakes you with a soft beep
• PIC Stack Match Package
  • all open source
• everything is open source

Ethernet interfaces

serial interfaces

https://quozl.linux.org.au/