Difference between revisions of "Digispark"
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| − | The Digispark is an Attiny85 based microcontroller development board similar to the Arduino line, perfect for when an Arduino is too big. | + | The Digispark is an Attiny85 based microcontroller development board similar to the Arduino line, perfect for when an Arduino is too big. The |
=== Specification === | === Specification === | ||
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* ADC on 4 pins | * ADC on 4 pins | ||
* Power LED and Test/Status LED | * Power LED and Test/Status LED | ||
| + | |||
| + | == Installation == | ||
| + | Arduino IDE 1.6.5 or newer is needed (I tried it on version 1.6.7). | ||
| + | |||
| + | # Go to "File -> Preferences" and in the field "Additional Boards Manager URLs" introduce http://digistump.com/package_digistump_index.json and click OK. | ||
| + | # Then go to "Tools -> Boards -> Boards Manager" and in the box "Type" select “Contributed”. Select the “Digistump AVR Boards” package and click the “Install” button. | ||
| + | # If you are using GNU/Linux you might need to add the rules for the USB programming device. | ||
| + | # Now you can select the board for developing from "Tools -> Boards", most probably the device you have is “Digispark (Default - 16.5mhz)”. | ||
| + | |||
| + | === Linux Rules === | ||
| + | |||
| + | If you are running GNU/Linux and getting errors on upload or other strange results you might need to add the USB device to udev. You must place the udev rules below into a file named /etc/udev/rules.d/49-micronucleus.rules | ||
| + | |||
| + | Create the /etc/udev/rules.d/49-micronucleus.rules files with this content (setting up the correct permissions for user and group if desired): | ||
| + | <pre> | ||
| + | # UDEV Rules for Micronucleus boards including the Digispark. | ||
| + | # This file must be placed at: | ||
| + | # | ||
| + | # /etc/udev/rules.d/49-micronucleus.rules (preferred location) | ||
| + | # or | ||
| + | # /lib/udev/rules.d/49-micronucleus.rules (req'd on some broken systems) | ||
| + | # | ||
| + | # After this file is copied, physically unplug and reconnect the board. | ||
| + | # | ||
| + | SUBSYSTEMS=="usb", ATTRS{idVendor}=="16d0", ATTRS{idProduct}=="0753", MODE:="0666" | ||
| + | KERNEL=="ttyACM*", ATTRS{idVendor}=="16d0", ATTRS{idProduct}=="0753", MODE:="0666", ENV{ID_MM_DEVICE_IGNORE}="1" | ||
| + | # | ||
| + | # If you share your linux system with other users, or just don't like the | ||
| + | # idea of write permission for everybody, you can replace MODE:="0666" with | ||
| + | # OWNER:="yourusername" to create the device owned by you, or with | ||
| + | # GROUP:="somegroupname" and mange access using standard unix groups. | ||
| + | </pre> | ||
| + | |||
| + | Then restart the system or run this command to apply the rules: | ||
| + | <pre> | ||
| + | udevadm control --reload-rules | ||
| + | </pre> | ||
Revision as of 10:58, 3 January 2016
The Digispark is an Attiny85 based microcontroller development board similar to the Arduino line, perfect for when an Arduino is too big. The
Specification
- Attiny85
- Power via USB or External Source (regulated 5v or 7-35v, 12v or less recommended with automatic selection)
- On-board 500ma 5V Regulator
- Built-in USB
- 6 I/O Pins (2 are used for USB only if your program actively communicates over USB, otherwise you can use all 6 even if you are programming via USB)
- 8k Flash Memory (about 6k after bootloader)
- I2C and SPI (vis USI)
- PWM on 3 pins (more possible with Software PWM)
- ADC on 4 pins
- Power LED and Test/Status LED
Installation
Arduino IDE 1.6.5 or newer is needed (I tried it on version 1.6.7).
- Go to "File -> Preferences" and in the field "Additional Boards Manager URLs" introduce http://digistump.com/package_digistump_index.json and click OK.
- Then go to "Tools -> Boards -> Boards Manager" and in the box "Type" select “Contributed”. Select the “Digistump AVR Boards” package and click the “Install” button.
- If you are using GNU/Linux you might need to add the rules for the USB programming device.
- Now you can select the board for developing from "Tools -> Boards", most probably the device you have is “Digispark (Default - 16.5mhz)”.
Linux Rules
If you are running GNU/Linux and getting errors on upload or other strange results you might need to add the USB device to udev. You must place the udev rules below into a file named /etc/udev/rules.d/49-micronucleus.rules
Create the /etc/udev/rules.d/49-micronucleus.rules files with this content (setting up the correct permissions for user and group if desired):
# UDEV Rules for Micronucleus boards including the Digispark.
# This file must be placed at:
#
# /etc/udev/rules.d/49-micronucleus.rules (preferred location)
# or
# /lib/udev/rules.d/49-micronucleus.rules (req'd on some broken systems)
#
# After this file is copied, physically unplug and reconnect the board.
#
SUBSYSTEMS=="usb", ATTRS{idVendor}=="16d0", ATTRS{idProduct}=="0753", MODE:="0666"
KERNEL=="ttyACM*", ATTRS{idVendor}=="16d0", ATTRS{idProduct}=="0753", MODE:="0666", ENV{ID_MM_DEVICE_IGNORE}="1"
#
# If you share your linux system with other users, or just don't like the
# idea of write permission for everybody, you can replace MODE:="0666" with
# OWNER:="yourusername" to create the device owned by you, or with
# GROUP:="somegroupname" and mange access using standard unix groups.
Then restart the system or run this command to apply the rules:
udevadm control --reload-rules
