CBA Hello World page
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This is the same as the official CBA Hello World page, except it has community annotations. Please add yours!
CAD/CAM
- cad.py - The cad.py program itself
- cad.cfg - configuration settings for cad.py
- cad shell script - A shell script to run fyrir cad.py
Examples
- light.png
- alien.cad - an alien head
- gik.cad - Grace's Invention Kit - a simple pressfit construction set
- function.cad - all sorts of mathematical functions
- mold.cad - a mold
- mold.png - a picture of the mold
- pcb.cad - base file for electronics
- MTA.cad - base file with MTA connectors
- stl2png.py - convert an STL file to a PNG image
2D vector drawing
2D raster drawing
3D
- Blender
- cad.blend - base file for Blender including a script that generates cad.py-friendly DXF files
- K-3D
- SketchUp
Programming
Useful Python packages
- pySerial - Control Serial (RS-232) communications from Python
- Tkinter - TK (pronounced "tick") graphical interfaces
- Numpy - Numerical Python numerical programming package
- Matplotlib - graphs and charts
- PIL - Python Imaging Library - image processing with Python
Version control / distributed development
- git
- [dist/siteserver.py siteserver] - Python script which changes a folder into a GIT collection
Electronics / PCB design
Electronics simulation
Microcontrollers
Modela
CAMM
- CAMM-1
- cat out.camm > /dev/parport0
Epilog Laser
- Epilog
- cat out.epi > /dev/parport0
AVR pprogramming
- gavrasm assembler
- Notkun: gavrasm hello.asm
- rx.py host serial receive, DTR power
- Notkun: python rx.py port speed
- term.py host serial transmit/receive, DTR power
- Notkun: python term.py port speed
tiny45 load hex file, bsd cable: avrdude -p t45 -c bsd -U flash:w:file.hex tiny45 load hex file, dasa cable: avrdude -p t45 -P /dev/ttyUSB0 -c dasa -U flash:w:file.hex tiny44 load hex file: avrdude -p t44 -c bsd -U flash:w:file.hex tiny44 use 20 MHz xtal: avrdude -p t44 -c bsd -U lfuse:w:0x7E:m mega88 load hex file: avrdude -p m88 -c bsd -U flash:w:file.hex mega88 use 20 MHz xtal: avrdude -p m88 -c bsd -U lfuse:w:0x76:m mega644 load hex file: avrdude -p m644 -c bsd -U flash:w:file.hex mega644 use 20 MHz xtal: avrdude -p m644 -c bsd -U lfuse:w:0x76:m
In order for programming cables to work, you may need to run: (See Linux shell howto)
su modprobe parport modprobe ppdev chmod 777 /dev/parport0
ATtiny45 programming cable:
7 - reset - 1 8 -
- 2 7 - SCK - 8
- 3 6 - MISO - 10
18 - GND - 4 5 - MOSI - 9
4 1 7 5 6 clip 1 2 3 4 5 6 7 8 9 10 11 12 13 DB25 14 15 16 17 18 19 20 21 22 23 24 25 DB25
in-circuit programming AMP MTA plug <- DB25M parallel (bsd) cable (wire side view):
9 18 10
| MOSI (3) GND (2) MISO (1) |
-RESET (4) SCK (5)
7 8
| cable direction
v
plug 1 3 5 4 2 DB25 13 12 11 10 9 8 7 6 5 4 3 2 1 DB25 25 24 23 22 21 20 19 18 17 16 15 14
in-circuit programming AMP MTA plug <- DB9F serial (dasa) cable (wire side view):
^
| cable direction
3 5 8
| MOSI (3) GND (2) MISO (1) |
-RESET (4) SCK (5)
7 4
plug 4 3 1 5 2
DCD Rx Tx DTR GND
DSR RTS CTS RI
DB9 1 2 3 4 5
DB9 6 7 8 9
serial programming voltage limiter: <A href=dist/dasa.cad dasa.cad]
serial AMP MTA plug <- DB9F cable (wire side view):
Tx GND
| 2 1 |
3 4
Rx DTR
| cable direction
v
plug 3 2 4 1
DCD Rx Tx DTR GND
DSR RTS CTS RI
DB9 1 2 3 4 5
DB9 6 7 8 9
Molex serial PCB connector:
1 2 3 4 Rx Tx DTR Gnd
Molex serial cable:
4 3 2 1 Gnd DTR Tx Rx DCD RI CTS RTS DSR 5 4 3 2 1 9 8 7 6
PIN PURPOSE SIGNAL NAME HEADER Pin 1 Data Carrier Detect DCD Pin 2 Received Data RxData 1 Pin 3 Transmitted Data TxData 2 Pin 4 Data Terminal Ready DTR 3 Pin 5 Signal Ground Gnd 4 Pin 6 Data Set Ready DSR Pin 7 Request To Send RTS Pin 8 Clear To Send CTS Pin 9 Ring Indicator%09 RI