This board is a “hello world” for a basic RGB LED. The program flashed to the microcontroller cycles through the available LED colors. To make it yourself – download the Fab Academy board diagrams / pngs and code.
Category: Fab Academy AS220 – Providence, RI
This board is a “hello world” for a basic LED matrix. I labeled some green LEDs as red by accident, so there are green and red LEDs on the board. (I had intended them to be all red). Download the Fab Academy board diagrams / pngs and code.
Board In Action
Programming Setup
To Flash the Board
sudo make -f hello.array.84.make program-usbtiny
Terminal Output Upon Success
avr-gcc -mmcu=attiny84 -Wall -Os -DF_CPU=8000000 -I./
-o hello.array.84.out hello.array.84.c
avr-objcopy -j .text -O ihex hello.array.84.out hello.array.84.c.hex;\
avr-size --mcu=attiny84 --format=avr hello.array.84.out
AVR Memory Usage
----------------
Device: attiny84
Program: 358 bytes (4.4% Full)
(.text + .data + .bootloader)
Data: 1 bytes (0.2% Full)
(.data + .bss + .noinit)
avrdude -p t84 -P usb -c usbtiny -U flash:w:hello.array.84.c.hex
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.01s
avrdude: Device signature = 0x1e930c
avrdude: NOTE: FLASH memory has been specified, an erase cycle will be
performed
To disable this feature, specify the -D option.
avrdude: erasing chip
avrdude: reading input file "hello.array.84.c.hex"
avrdude: input file hello.array.84.c.hex auto detected as Intel Hex
avrdude: writing flash (358 bytes):
Writing | ################################################## | 100% 1.03s
avrdude: 358 bytes of flash written
avrdude: verifying flash memory against hello.array.84.c.hex:
avrdude: load data flash data from input file hello.array.84.c.hex:
avrdude: input file hello.array.84.c.hex auto detected as Intel Hex
avrdude: input file hello.array.84.c.hex contains 358 bytes
avrdude: reading on-chip flash data:
Reading | ################################################## | 100% 0.60s
avrdude: verifying ...
avrdude: 358 bytes of flash verified
avrdude: safemode: Fuses OK
avrdude done. Thank you.
The purpose of this board is to take input from a phototransistor and display it visually using a python program when the board is connected to a computer via a FTDI cable. Link to the Fab Academy board diagrams / pngs and code.
To Flash the Board
sudo make -f hello.light.45.make program-usbtiny
Terminal Output When Board is Being Flashed
[sudo] password for akaziuna:
avr-gcc -mmcu=attiny45 -Wall -Os -DF_CPU=8000000 -I./
-o hello.light.45.out hello.light.45.c
avr-objcopy -j .text -O ihex hello.light.45.out hello.light.45.c.hex;\
avr-size --mcu=attiny45 --format=avr hello.light.45.out
AVR Memory Usage
----------------
Device: attiny45
Program: 426 bytes (10.4% Full)
(.text + .data + .bootloader)
Data: 0 bytes (0.0% Full)
(.data + .bss + .noinit)
avrdude -p t45 -P usb -c usbtiny -U flash:w:hello.light.45.c.hex
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.01s
avrdude: Device signature = 0x1e9206
avrdude: NOTE: FLASH memory has been specified, an erase cycle will be performed
To disable this feature, specify the -D option.
avrdude: erasing chip
avrdude: reading input file "hello.light.45.c.hex"
avrdude: input file hello.light.45.c.hex auto detected as Intel Hex
avrdude: writing flash (426 bytes):
Writing | ################################################## | 100% 1.27s
avrdude: 426 bytes of flash written
avrdude: verifying flash memory against hello.light.45.c.hex:
avrdude: load data flash data from input file hello.light.45.c.hex:
avrdude: input file hello.light.45.c.hex auto detected as Intel Hex
avrdude: input file hello.light.45.c.hex contains 426 bytes
avrdude: reading on-chip flash data:
Reading | ################################################## | 100% 0.77s
avrdude: verifying ...
avrdude: 426 bytes of flash verified
avrdude: safemode: Fuses OK
avrdude done. Thank you.
Run The Visualization Program
python hello.light.45.py /dev/ttyUSB0
Hello Microphone Board
The purpose of this board is to take microphone input and display it visually using a python program when the board is connected to a computer via a FTDI cable. For whatever reason, I found that the non-fab inventory microphone I used only picked up high pitched electronic noises / music. The microphone / program did not display input from sounds in a lower range or general music or background noise.
Visualized Microphone Output – Dead Kennedys “Man With The Dogs”
Programming Hello Microphone with the FabISP
To Flash the Microntroller:
To program your Hello Microphone – download all the files
sudo make -f hello.mic.45.make program-usbtiny
If Working – This is the Terminal Output Produced
avr-objcopy -j .text -O ihex hello.mic.45.out hello.mic.45.c.hex;\ avr-size --mcu=attiny45 --format=avr hello.mic.45.out AVR Memory Usage ---------------- Device: attiny45 Program: 500 bytes (12.2% Full) (.text + .data + .bootloader) Data: 200 bytes (78.1% Full) (.data + .bss + .noinit) avrdude -p t45 -P usb -c usbtiny -U flash:w:hello.mic.45.c.hex avrdude: AVR device initialized and ready to accept instructions Reading | ################################################## | 100% 0.00s avrdude: Device signature = 0x1e9206 avrdude: NOTE: FLASH memory has been specified, an erase cycle will be performed To disable this feature, specify the -D option. avrdude: erasing chip avrdude: reading input file "hello.mic.45.c.hex" avrdude: input file hello.mic.45.c.hex auto detected as Intel Hex avrdude: writing flash (500 bytes): Writing | ################################################## | 100% 0.87s avrdude: 500 bytes of flash written avrdude: verifying flash memory against hello.mic.45.c.hex: avrdude: load data flash data from input file hello.mic.45.c.hex: avrdude: input file hello.mic.45.c.hex auto detected as Intel Hex avrdude: input file hello.mic.45.c.hex contains 500 bytes avrdude: reading on-chip flash data: Reading | ################################################## | 100% 1.00s avrdude: verifying ... avrdude: 500 bytes of flash verified avrdude: safemode: Fuses OK avrdude done. Thank you. run software
Run The Python Program (Ubuntu)
python hello.mic.45.py /dev/ttyUSB0