ODROID - Revision history

JulianMauricioAngelFernandez at 11:30, 10 November 2014

2014-11-10T11:30:01Z

2014-11-10T11:28:09Z

2014-08-12T07:36:07Z

2014-08-12T07:33:56Z

‎Tested wireless communication

2014-08-12T07:32:40Z

‎TP-LINK WN725n v2

2014-08-12T07:31:29Z

‎Tested OS and versions

2014-07-10T14:31:53Z

‎TP-LINK WN725n v2

2014-07-09T14:25:46Z

‎Realtek RTL8192CU

2014-04-15T11:51:37Z

‎Tested OS and versions

2014-04-15T11:49:36Z

@@ Line 97: / Line 97: @@
 Open the file /etc/networ/interfaces and add the following lines:
-iface wlanX inet static
+ iface wlanX inet static
-address "ip address"
+ address "ip address"
-wpa-ssid "name of the network"
+ wpa-ssid "name of the network"
-wpa-psk "password of the network"
+ wpa-psk "password of the network"
 Change X for the correct interface.
@@ Line 107: / Line 107: @@
 When the odroid is stated up the port, in which arduino is plug, does not have all the permissions to be access by the odroid's os. To solve this without connect and add the permissions to the proper port, it could be add a script that is executed each time that the odroid is start up. To do this should be created a file xx.sh, where xx is the name of the file. In this file should be written:
-echo "odroid" | sudo chmod 777 /dev/ttyACM0
+ echo "odroid" | sudo chmod 777 /dev/ttyACMX
 The file xx.sh should be moved to /etc/init.d/, and then run the following command:
-update-rc.d xx.sh
+ update-rc.d xx.sh

← Older revision		Revision as of 11:28, 10 November 2014
Line 91:		Line 91:
	sudo lshw -disable dmi		sudo lshw -disable dmi
	although this will prevent the detection of certain features of the board. Another way of fixing this issue is to recompile the kernel by hand (see the how-to linked above).		although this will prevent the detection of certain features of the board. Another way of fixing this issue is to recompile the kernel by hand (see the how-to linked above).
		+
		+	==Configuring a Network==
		+	This steps are useful when you are working via ssh or just finished to install ubuntu on the sd card.
		+
		+	Open the file /etc/networ/interfaces and add the following lines:
		+
		+	iface wlanX inet static
		+	address "ip address"
		+	wpa-ssid "name of the network"
		+	wpa-psk "password of the network"
		+
		+	Change X for the correct interface.
		+
		+	==Communication with Arduino ==
		+	When the odroid is stated up the port, in which arduino is plug, does not have all the permissions to be access by the odroid's os. To solve this without connect and add the permissions to the proper port, it could be add a script that is executed each time that the odroid is start up. To do this should be created a file xx.sh, where xx is the name of the file. In this file should be written:
		+
		+	echo "odroid" \| sudo chmod 777 /dev/ttyACM0
		+
		+	The file xx.sh should be moved to /etc/init.d/, and then run the following command:
		+
		+	update-rc.d xx.sh

← Older revision		Revision as of 07:36, 12 August 2014
Line 1:		Line 1:
−	There are ~~two~~ [http://www.hardkernel.com/ ODROID] U2 and two U3 for development of small robots. Here are details and suggestions for their use.	+	There are some [http://www.hardkernel.com/ ODROID] U2 and two U3 for development of small robots. Here are details and suggestions for their use.

	=== Useful How-Tos ===		=== Useful How-Tos ===

@@ Line 43: / Line 43: @@
 === Tested wireless communication ===
+See problems below.
 === Tested wired communication ===

@@ Line 15: / Line 15: @@
 ====TP-LINK WN725n v2====
-This device is not supported by linux, thus it should be compiled to the desire platform. To do this, it could be follow this [http://forum.odroid.com/viewtopic.php?f=52&t=1674 tutorial].
+This device is not supported by linux, thus it should be compiled to the desired platform. To do this, you can follow this [http://forum.odroid.com/viewtopic.php?f=52&t=1674 tutorial].
 Sometimes it is not enough just the tutorial, because the system does not add the wlanX to the configuration file. Thus, it is necessary to modify the following file:
@@ Line 32: / Line 32: @@
 If this does not work try
    sudo ifconfig wlanX up
-Then, redo the above steps
+Then, redo the above steps.
 ==== Monitors ====

@@ Line 6: / Line 6: @@
 === Tested OS and versions ===
-* [http://odroid.in/ubuntu-server-13.05/ Lubuntu 13.05 Server] does not have a graphical interface. It has already installed ssh. To install ROS, please follow this [http://wiki.ros.org/hydro/Installation/UbuntuARM instructions]
+* [http://odroid.in/ubuntu-server-13.05/ Lubuntu 13.05 Server] does not have a graphical interface. It has already installed ssh. To install ROS, please follow these [http://wiki.ros.org/hydro/Installation/UbuntuARM instructions]
 * [http://forum.odroid.com/viewtopic.php?f=8&t=1193 Xubuntu 13.04]  for armhf architectures, released by HardKernel with their [https://github.com/hardkernel/linux modified Linux kernel, version 3.0.75]. The kernel can be recompiled for using 3D video acceleration but this would prevent USB video cameras to work, so it's useless for robot development (even more so since OpenCL can't be even used).
 * [http://forum.odroid.com/viewtopic.php?f=8&t=12 Linaro Ubuntu 12.11] with HardKernel's Linux kernel, version 3.0.60. Grab [http://dn.odroid.com/Ubuntu_U2/20130125/ this image] dated 25-01-2013, flash it on your microSD card and then apply the latest point kernel point update (at the time of writing, it is version 3.0.63, dated 13-02-2013) following the instructions given on the thread's opening post.

@@ Line 26: / Line 26: @@
 After saving the changes on the file, it should be restart the connection:
   sudo /etc/init.d/netwroking restart
 To see the available wifii networks:
   sudo iwlist wlanX scanning
 ==== Monitors ====

@@ Line 75: / Line 75: @@
 ===== Realtek RTL8192CU =====
-This chipset seems not to be even detected by the stock HK kernel (all versions of it), but it is possible to use it after recompiling the kernel, disabling the in-kernel module for the NIC, and integrating [http://www.realtek.com/downloads/downloadsView.aspx?Langid=1&PNid=21&PFid=48&Level=5&Conn=4&DownTypeID=3&GetDown=false&Downloads=true Realtek's official driver] for this chipset inside it (instructions are included in the package).
+This chipset seems not to be even detected by the stock HK kernel (all versions of it), but it is possible to use it after [http://forum.odroid.com/viewtopic.php?f=29&t=1516 recompiling the kernel], disabling the in-kernel module for the NIC, and integrating [http://www.realtek.com/downloads/downloadsView.aspx?Langid=1&PNid=21&PFid=48&Level=5&Conn=4&DownTypeID=3&GetDown=false&Downloads=true Realtek's official driver] for this chipset inside it (instructions are included in the package).
 However, you still get a huge packet loss rate, even if you disable the power saving feature of the driver by loading the kernel module with
    sudo modprobe 8192cu rtw_power_mgnt=0
 === Solved issues ===

@@ Line 1: / Line 1: @@
-There are two [http://www.hardkernel.com/ ODROID] U2 for development of small robots. Here are details and suggestions for their use.
+There are two [http://www.hardkernel.com/ ODROID] U2 and two U3 for development of small robots. Here are details and suggestions for their use.
 === Useful How-Tos ===
@@ Line 13: / Line 13: @@
 === Tested I/O devices ===
 ==== Monitors ====