PcDuino Lite
pcDuino Lite
pcDuino Lite - http://www.pcduino.com/pcduino-lite/
Features:
- 1GHz ARM Cortex A8 CPU
- GPU: OpenGL ES2.0, OpenVG 1.1 Mali 400 core
- 512 MB DRAM
- Onboard Storage: NO Flash, microSD card (TF) slot for up to 32GB
- Arduino-Style Peripheral Headers (Adapter Needed for Shield Form-Factor)
- HDMI Video Output
- Linux3.0 + Ubuntu12.04 Supported
- 0.1" Spaced GPIO Headers
- RJ45 Ethernet Connection
- Power Requirements: 2A @ 5VDC
- API to access the following interfaces:
- UART
- ADC
- PWM
- GPIO
- I2C
- SPI
- Program in C, C++ with GNU tool chain
- Python
SD Image
Download Image for pcDuino Lite ETH: http://www.linksprite.com/?page_id=839 http://www.pcduino.com/images-for-pcduino-lite-eth/
- Ubuntu SD Bootable image https://s3.amazonaws.com/pcduino/Images/lite-eth/pcduino-lite_ubuntu_20130929.img
- Write image with win32diskimagwriter - https://s3.amazonaws.com/pcduino/Tools/win32diskimager-v0.7-binary.zip
Default password:
user: ubuntu pass: ubuntu with sudo privileges
Update:
sudo board-config.sh # select “update” -> all
Purchase
- SparkFun Electronics - pcDuino Lite - Dev Board - DEV-12077 ($40 + $4.50 shipping) - https://www.sparkfun.com/products/12077
- Amazon - pcDuino Lite ($43 + $4.50 shipping) - http://www.amazon.com/s/ref=nb_sb_noss_1?url=search-alias%3Daps&field-keywords=pcDuino%20Lite
pcDuino Comparison Chart
pcDuino Family - http://www.pcduino.com/pcduino-family/
- pcDuino Lite
- pcDuino Lite WiFi
- pcDuino v1
- pcDuino v2
- pcDuino3
Update pcDuino
Update pcDuino specific:
sudo board-config.sh # select "update" -> "all"
Update packages: (May have to comment out wiimu repo)
sudo apt-get update sudo apt-get upgrade
Boot No GUI
For the latest bootable SD image (31052013), you can boot into terminal with:
sudo mv /etc/init/lightdm.conf /etc/init/lightdm.conf.nostart
This way, lightdm is disabled on boot. Still after booting into terminal you can start desktop with the command "lightdm" (without quotes of course)
To switch back to autostart of desktop:
sudo mv /etc/init/lightdm.conf.nostart /etc/init/lightdm.conf
References:
- Boot to console, without GUI? - http://pcduino.com/forum/index.php?topic=3645.0
GPIO
Load GPIO module:
/sbin/modprobe gpio
Pins:
gpio0 gpio1 gpio2 gpio3 gpio4 gpio5 gpio6 gpio7 gpio8 gpio9 gpio10 gpio11 gpio12 gpio13 gpio14 gpio15 gpio16 gpio17 gpio18 gpio19 gpio20 gpio21 gpio22 gpio23
Set mode:
# input echo 0 > /sys/devices/virtual/misc/gpio/mode/gpio1 # output echo 1 > /sys/devices/virtual/misc/gpio/mode/gpio1
Set level:
# low echo 0 > /sys/devices/virtual/misc/gpio/pin/gpio1 # high echo 1 > /sys/devices/virtual/misc/gpio/pin/gpio1
References:
- Programming the pcDuino - learn.sparkfun.com - https://learn.sparkfun.com/tutorials/programming-the-pcduino/accessing-gpio-pins
- Programming the pcDuino - learn.sparkfun.com - https://learn.sparkfun.com/tutorials/programming-the-pcduino
Pins
Issues
apt-get update expected pcduino but got
Error:
# apt-get update ... W: Conflicting distribution: http://www.wiimu.com pcduino Release (expected pcduino but got )
Solution:
- Edit /etc/apt/sources.list and comment out the wiimu lines
#deb http://www.wiimu.com:8020/pcduino/ pcduino main #deb-src http://www.wiimu.com:8020/pcduino/ pcduino main
References:
- Install ROS Groovy on pcDuino » pcDuino - http://www.pcduino.com/install-ros-groovy-on-pcduino/
mac changes every reboot
Edit /etc/network/interfaces and add:
iface eth0 inet dhcp
hwaddress ether xx:xx:xx:xx:xx:xx
auto eth0
References:
- Fix Ethernet MAC address · Issue #47 · cubieplayer/Cubian - https://github.com/cubieplayer/Cubian/issues/47
- [ubuntu] MAC address changes after every reboot - http://ubuntuforums.org/showthread.php?t=1647460
Please set the screen resolution
When trying to exit the board-config.sh from a remote SSH connection you may get the following warning, which won't let you exit:
Please set the screen resolution
As far as I can tell, this would have to be fixed from a console session connected to HDMI. So just kill the SSH connection and connect again.