General Discussion

Writing to I2C through UEFI application

invalid@example.com (Ruvim P) — Tue, 22 Nov 2022 11:06:46 +0000

I am writing a program to talk to a device in the UEFI shell through Edk2. I've successfully been able to write and read to the bus through EFI_I2C_MASTER_PROTOCOL but for whatever reason at the end of every write it sends an extra byte of 0. I am wondering if it has to do with SmBus appending a byte for PEC but regardless is there any way to write without that extra byte?

Thank you for your time, have a great day!

voice controlled home automation

invalid@example.com (Steffa) — Thu, 23 Jun 2022 13:51:24 +0000

Hello everyone, there is a lot of interesting information on this site, but this is a new topic for me. Interested in voice controlled home automation, please tell me what are the requirements for the characteristics of the phone, in order to do this?

Porting driver in USB Bluetooth Dongle for android Oreo

invalid@example.com (vinothkumar) — Fri, 11 Jan 2019 09:59:38 +0000

Hi, I want to connect USB Bluetooth Dongle with Android (Android Version 8.0 and above). Before, I want to port the driver in USB Bluetooth Dongle. But, I don't know how to port the bluetooth driver in usb bluetooth dongle. I want the steps to port.

Best 'laptop' approach - merge monitor PSU?

invalid@example.com (jago) — Wed, 19 Dec 2018 05:11:55 +0000

The Pi-top is one method of a DIY laptop. There are a few drawbacks and I wonder if the approach is the best or whether there might be a better way?

The first thing I notice about the setup is that all the components are in one box and I feel that's not completely necessary... but it does have some advantage; namely a simple power setup. Anyway, some of the components can be removed and replaced with something off the shelf: wireless usb keyboard, wireless mouse instead of touchpad...
but...

Best 'laptop' approach - merge monitor PSU?

Tensorflow on the Udoo

invalid@example.com (Achintya Kumar) — Fri, 18 May 2018 07:22:05 +0000

Is it possible to run Tensorflow image recognition on the Udoo Quad or the Udoo x86 without latency >1 second? If so, how?

Temperature and humidity Meteo project

invalid@example.com (chilliman) — Sun, 10 Dec 2017 14:33:21 +0000

hi
i am tying to get the Temperature and humidity Meteo project from the tutorials on the udoo website , have got it working but when i try to use the PHP part of the tutorial i keep get an error listed below

Warning: Unable to open the device in /var/www/METEO/php_serial.class.php on line 157 Warning: Device must be opened in /var/www/METEO/php_serial.class.php on line 541 Warning: Device must be opened to read it in /var/www/METEO/php_serial.class.php on line 474
--UDOO SYSTEM--METEO...

Temperature and humidity Meteo project

DHT22 Sensor Not Reading

invalid@example.com (Tom Thumb) — Thu, 20 Apr 2017 12:01:50 +0000

Configuration:
UDOO Quad
Udoo version: udoobuntu-udoo-qdl-desktop_2.1.2
Arduino IDE 1.8.2 compiling from Windows 7 Desktop
DHT22 connected to 3.3v power

So I've seen a few other DHT22 threads but was unable to find anything to steer me in the correct direction. People have suggested issues with certain libraries and have no pointed in the direction of working libraries from what I have seen. So here's my situation:

I have a DHT22 purchased from Adafruit with the resistor built in as seen...

DHT22 Sensor Not Reading

Why connect a switch to 5v

invalid@example.com (Maurice) — Thu, 31 Mar 2016 10:23:06 +0000

I'm creating a system that will detect whether the garage door is open or closed. In a previous version I used the Neo's internal compass to measure the door position, but I'm going to use a reed switch. I then control two leds to indicate the switch position, and I will use MQTT so send it to my MQTT broker.

I'm no hardware designer, so I've based my design on designs I found on the internet. I noticed that when I see switch designs they connect the wire to 5v, even in the 'official'...

Why connect a switch to 5v

Wireless Communication Between UDOO & RPI

invalid@example.com (otpowell) — Wed, 20 Jan 2016 17:55:40 +0000

Hello, perhaps this is a newbie question as I am relatively new. I've been researching this idea for quite some time. I want to setup a UDOO with a PIR sensor hooked up in one room and if motion is detected, I want the UDOO to wirelessly send a message to my Raspberry Pi in the other room and tell it to turn an LED matrix red. I want the LED matrix to display blue when no movement is detected on the UDOO, and red if motion is detected. Is there a way I can do this by running a python...

Wireless Communication Between UDOO & RPI

Warranty

invalid@example.com (daniele86) — Fri, 11 Dec 2015 15:33:19 +0000

Hi,
I've lost my sheet of the purchase.
If I need, how can I make a warranty claim?

Thanks
Daniele

First Project With IR

invalid@example.com (Kolonka) — Thu, 12 Mar 2015 04:37:21 +0000

Hello,
I've got an UDOO Quad since 2 years so I finally want to start my first project (like often before, but I don't want to kill it).
The first part is: i push a button on a remote and a led should turn on.
So I need an IR-Receiver and an LED (I have many of them in different colors and they are nice and...).

The 2nd part is, to read the codes of the remote and save them to let the led run later.
Then the LED should be replaced by an IR-LED.
At the end a little app for android...

First Project With IR

USB 3.0, Is there any way this can be added?

invalid@example.com (krosav) — Thu, 22 Jan 2015 06:29:49 +0000

Hey All,

Just wondering if there is any way a USB 3.0 port could be converted from one of the available ports on the UDOO Quad. Be it SATA, Ethernet, a combination of the USB 2.0 ports and ethernet, an arduino shield, etc.

I've done some digging around the internet to see if there are any Ethernet converted USB 3.0 ports but the only things that come up are in the reverse order, where someone already has a usb 3.0 port and is converting it to ethernet. I understand USB 3.0 is faster than...

USB 3.0, Is there any way this can be added?

Error on Oracle JDK tutorial

invalid@example.com (humblehacker) — Tue, 13 Jan 2015 10:24:59 +0000

Hello,
I am not sure where the proper place for tutorial-specific questions is since there doesn't appear to be any space for comments on the official http://www.udoo.org/tutorials/. I wanted to point out a minor typo that could result in major frustrations for people blindly copying commands from the "Oracle JDK Installation" tutorial at http://www.udoo.org/ProjectsAndTuto...opement-kit-on-udoos-ubuntu/?portfolioID=1394

On the...

Error on Oracle JDK tutorial

rs485 on arduino/linux @ UDOO

invalid@example.com (krapazok) — Sun, 23 Nov 2014 12:51:59 +0000

Hello !
(sorry for the bad whriting, i'm belgian :mrgreen: )

hi have a short ask for you, i have a domotic project and i need to communicate on rs485 bus.
It is possible to using arduino program with rx/tx rs485 AND using this same port with linux ?

or i'm obligated to using one interface for the arduino AND one interface (usb) for the linux ?

Thank you !

Need more detailed tutorials

invalid@example.com (TopherT1) — Wed, 25 Jun 2014 14:48:17 +0000

I am new to UDOO and Linux in general, I do have experience with Arduino though. Being very new to all of this is makes using the UDOO very difficult. I really think that more detailed step-by-step instructions are need with actual examples of the code used. I am finding that a lot of the current information gives you a rough idea for a project but never really explains specific details. I'm sure you are all very busy and working very hard to bring us the best possible product but I think a...

Need more detailed tutorials

[Solved]Connect a external Arduino to your Udoo?

invalid@example.com (problemer) — Thu, 10 Apr 2014 17:00:43 +0000

Hello,

There must be someone who have tried to connect an extra Arduino to the udoo board. Where you able to establish a serial connection? How did you do it.

Android and Arduino on UDOO - Simple Hello World tutorial

invalid@example.com (jey86) — Wed, 22 Jan 2014 16:20:28 +0000

Hi guys,
in this tutorial we'll see how to implement an Android App and an Arduino sketch that exploit UDOO's potentials thanks to the ADK (Accessory Development Kit). Take it as a learning excercise, because we're just using the very basic Hello World you previously saw with Arduino. This time however, the LED will be turned on via an Android App.

The Accessory Development Kit provided by Google allows to building accessories for Android devices based on the Arduino framework so with UDOO...

Android and Arduino on UDOO - Simple Hello World tutorial