Search found 89 matches

Go to advanced search

by BrendonShaw
Fri Nov 23, 2018 9:13 am
Forum: Java
Topic: Java Home not define (wso2ei-6.4.0 installation)
Replies: 0
Views: 3197

Java Home not define (wso2ei-6.4.0 installation)

I am trying to install wso2ei-6.4.0, but it will not run due to the following error messages: Error: JAVA_HOME is not defined correctly. CARBON cannot execute java I have executed Java -verison and have the following return java version "1.8.0_65" Java(TM) SE Runtime Environment (build 1.8.0_65-b17)...
by BrendonShaw
Thu Nov 22, 2018 5:22 pm
Forum: Python
Topic: SSL error - certificate verify failed - AWS IOT (basicPubSub.py)
Replies: 0
Views: 1087

SSL error - certificate verify failed - AWS IOT (basicPubSub.py)

I am trying to use the AWS IoT (basicPubSub.py) script to test my AWS connection, but I keep getting this error. I have tried various fixes, but cannot resolve the problem. I have tried it using my MacBook and RPi and still have the same issue. I have been trying to get the basicPubSub.py script to ...
by BrendonShaw
Sat Oct 13, 2018 6:30 am
Forum: General discussion
Topic: Pi Zero - WiFi test box (USB Or Serial pins?)
Replies: 2
Views: 278

Pi Zero - WiFi test box (USB Or Serial pins?)

I need to develop a WiFi test box to try some networking configurations and access to different networks, but just want to check if the following will work: Use a USB cable plugged into a Pi Zero, will I be able to serial terminal into the device or will I need to use the serial terminal pins on the...
by BrendonShaw
Mon Dec 18, 2017 8:43 am
Forum: Networking and servers
Topic: IoT device what network setting should be provided?
Replies: 1
Views: 440

IoT device what network setting should be provided?

We have been working on an IoT device but having some problems connecting it to different network configurations, currenly we only provide automatic IP address when connected to a WiFi network but we need to provide more settings to support the interface to a wider range networks. Can any one recomm...
by BrendonShaw
Fri Nov 17, 2017 7:38 pm
Forum: Graphics, sound and multimedia
Topic: New definition display - recommendations
Replies: 0
Views: 280

New definition display - recommendations

I am starting a new demo project and looking for recommendations for a high definition display ideally about 3inch, does not need to be touch screen. I know there are loads of displays compatible for RPi, but I would like to understand if there any recommendations it does not need to have a RPi shie...
by BrendonShaw
Sat Jun 25, 2016 7:25 am
Forum: Windows 10 for IoT
Topic: Raspberry Pi IoT Hub - WiFi setup
Replies: 1
Views: 778

Raspberry Pi IoT Hub - WiFi setup

We want to send raspberry pi IoT boxes to different customer locations around the world. Normally the customer would setup up the wifi settings via a log file or serial interface, but we want to move the product to Windows IoT platform. So we have an pilot project use to test the system and installa...
by BrendonShaw
Sun Jun 05, 2016 6:18 am
Forum: Windows 10 for IoT
Topic: Windows home or pro
Replies: 1
Views: 805

Windows home or pro

I want to start developing Windows IoT with the raspberry pi, but before i go and buy a suitable laptop what verison of Windows do I need home or pro?
by BrendonShaw
Sun Dec 14, 2014 9:57 am
Forum: Staffroom, classroom and projects
Topic: Why use a RPi at school?
Replies: 32
Views: 7717

Re: Why use a RPi at school?

it would be good to go, I am not a teacher but an engineering manager using STEM & RPi help promote enginering as a career in schools. So not sure if I would be allow to attend such events, but it good to know if RPi group plan any industry input or allows ideas to be share other school projects.
by BrendonShaw
Sun Dec 14, 2014 9:30 am
Forum: Automation, sensing and robotics
Topic: Robot programming :: your 2 cents
Replies: 8
Views: 1706

Re: Robot programming :: your 2 cents

We had four dc motors and wannted indepent speed control on each motor, we found the RPi could not manage accurate speed control on four PWM pins. I will admit I need to see if the B+ is better.
by BrendonShaw
Sun Dec 14, 2014 9:27 am
Forum: Staffroom, classroom and projects
Topic: Why use a RPi at school?
Replies: 32
Views: 7717

Re: Why use a RPi at school?

We done several STEM raspberry Pi clubs and I would say kids get more enguage with a RPi then any PC based software. Personally I think kids get more into coding when then can physically see or do something, like press a button light comes on and the build up projects. We are now working with Colche...
by BrendonShaw
Sun Dec 14, 2014 9:10 am
Forum: Automation, sensing and robotics
Topic: Robot programming :: your 2 cents
Replies: 8
Views: 1706

Re: Robot programming :: your 2 cents

I have built a couple of robots, as the previous mail were do you start? You can use DC motors or servo motors, both have advantages and disadvanges i.e. cost Vs accuracy. We built a 4 AWD bot using mini DC motors and encoders to measure distance. If you want DC motor speed control, the RPi will not...
by BrendonShaw
Thu Nov 13, 2014 6:24 pm
Forum: Raspbian
Topic: Open electronics raspberry pi sim908 problems
Replies: 3
Views: 1585

Re: Open electronics raspberry pi sim908 problems

I found the problem to be the power supply,I switch to a 6v 3amp PSU and everything worked okay. I used the test scripts from the web site and got it texting okay.

Let me know if I can be any more help
by BrendonShaw
Tue Sep 23, 2014 5:58 am
Forum: Raspbian
Topic: Open electronics raspberry pi sim908 problems
Replies: 3
Views: 1585

Open electronics raspberry pi sim908 problems

I have recently purchased the open electronics raspberry gsm/gps sim908 module and having problems getting it to work. On initial debug it looks like there is no serial tx from the module, but the hardware looks find and there is nothing complex on the interface board. The odd thing in a terminal sc...
by BrendonShaw
Sun Sep 21, 2014 8:22 am
Forum: Raspbian
Topic: Serial terminal
Replies: 4
Views: 1284

Serial terminal

I have started to play with a GSM sim908 module and would like a serial terminal to send serial commands to the module. Could anyone recommend a serial terminal for RPi raspbian?
by BrendonShaw
Thu Jul 31, 2014 8:41 am
Forum: Raspbian
Topic: RPi B+ BCM2835 lib
Replies: 0
Views: 1075

RPi B+ BCM2835 lib

I am using the new RPi B+ board and trying to access the addittional GPIO lines using the BCM2835 lib, but not getting any response or ability to use the new GPIO pins. I know they work as I am using the wiringPi lib, but just want to port over some older code and inculde the use of the new B+ GPIO ...
by BrendonShaw
Fri Jul 25, 2014 6:54 am
Forum: Automation, sensing and robotics
Topic: L293 dc motor - quick switch from forward to reverse problem
Replies: 6
Views: 1981

L293 dc motor - quick switch from forward to reverse problem

i am working on a four motor chassis project and use two l293d motor drivers IC's. I have used them before, without any problems and checks everything is hook up correctly. The problem seems to be when I switch the motor driver from forward direction to reverse direction, I am getting a high current...
by BrendonShaw
Sat Jul 19, 2014 1:59 pm
Forum: Raspbian
Topic: RPi B+ USB WiFi problem
Replies: 12
Views: 8852

Re: RPi B+ USB WiFi problem

As an updated, I re-imaged the O/S and ran though all the setup & updates and now can setup & maintain the wifi connection.

Might just be me, but it seems really slow response via SSH and it's dump me out twice in SSH.
by BrendonShaw
Sat Jul 19, 2014 1:05 pm
Forum: Raspbian
Topic: RPi B+ USB WiFi problem
Replies: 12
Views: 8852

RPi B+ USB WiFi problem

I have been using RPi for over year, so I know setting up and USB wifi works okay. I have a new RPi B+ but cannot setup the USB WiFi and wondering if anyone else has the same problem. I have the latest Debian Wheezy version (uname -a) "Linux raspberrypi 3.12.24+ #694 PREEMPT Tue Jul 15 17:34:35 BST ...
by BrendonShaw
Sat Jan 04, 2014 10:09 am
Forum: Other projects
Topic: HY28A-LCDB, ili9320 (working)
Replies: 131
Views: 38123

Re: HY28A-LCDB, ili9320 (working)

Notro, I cannot thank you enough for the reply and the information it's big help. May I should add want I am trying to do, we have a demo with a local school with the RPi and the idea is the children clap and the screen will change a different colour, so it's nothing complex and felt driving the dis...
by BrendonShaw
Fri Jan 03, 2014 10:04 am
Forum: Other projects
Topic: HY28A-LCDB, ili9320 (working)
Replies: 131
Views: 38123

Re: HY28A-LCDB, ili9320 (working)

I still getting my head into the code to support a frame buffer on the RPi, I have installed the fbtft driver and see the response to the various SPI commands. I was just wondering if anyone has used the https://github.com/notro/fbtft_test on the hy28a display, I tried to use it but it did not like ...
by BrendonShaw
Thu Dec 26, 2013 9:48 pm
Forum: Other projects
Topic: HY28A-LCDB, ili9320 (working)
Replies: 131
Views: 38123

Re: HY28A-LCDB, ili9320 (working)

This is my BCM SPI setup and I have just set one pixel then written to complete & update the display. It works but just takes about 1 second to update the display int main(void) { unsigned int i, j; if (!bcm2835_init()) return 1; // Set the RESET pin to be an output bcm2835_gpio_fsel(RESET, BCM2835_...
by BrendonShaw
Thu Dec 26, 2013 12:37 pm
Forum: Other projects
Topic: HY28A-LCDB, ili9320 (working)
Replies: 131
Views: 38123

Re: HY28A-LCDB, ili9320 (working)

I have managed to get the display runnin, but like other people the update is very slow, what is the best way to perform/execute the spi comms to increase the display update?
by BrendonShaw
Tue Dec 24, 2013 3:36 pm
Forum: Other projects
Topic: HY28A-LCDB, ili9320 (working)
Replies: 131
Views: 38123

Re: HY28A-LCDB, ili9320 (working)

Many thanks for the quick and very detailed response, it seems it's just having the right SPI commands in the right order. Still not working, but I keep working with the BCM SPI commands, I think there is some issues with the sequence.
by BrendonShaw
Mon Dec 23, 2013 8:57 am
Forum: Other projects
Topic: HY28A-LCDB, ili9320 (working)
Replies: 131
Views: 38123

Re: HY28A-LCDB, ili9320 (working)

I have this display and really keen to understand how it works from a driver level, I was trying to use the initial code from Okin but even with the changes it still does not work. Does any one know if the finial working code from Okin is anywhere I could look at just to understand the bare bonds of...
by BrendonShaw
Sun Dec 22, 2013 7:18 pm
Forum: HATs and other add-ons
Topic: 2.8" TFT + Touch Shield Board v1 a/b/c
Replies: 383
Views: 204932

Re: 2.8" TFT + Touch Shield Board

I would like to understand how the spi & gpio interface works directly with the RPi. I am reading the data sheet for the display and wondering if anyone has any initial information to use the display.

Go to advanced search