Below you will find pages that utilize the taxonomy term “Iot”
Storing Raspberry PI timelapse images using Linode Object Storage
One common task for my Raspberry Pi Zero with (infrared) Camera is to do still image capture in regular intervals and upload the images for storage and post-processing. A simple way to achieve this with standard software tools available in the Raspberry Pi OS repositories is to use the S3 CLI tools and a simple bash script run by a scheduled cron job.
Working with Siemens IoT2000 series from Linux
The Siemens IoT2000 series has been a very interesting development from Siemens and it’s really encouraging to see the use of Open Source in the Automation sector definitely on the increase. And that can only be a good thing for developer productivity. Seeing a different IDE for each manufacturer of a PLC invokes some nasty memories of last century web-application development…
Download existing image
The image can be downloaded from the Siemens support site (if you don’t have an account with Siemens you might have to sign up for a login first. https://support.industry.siemens.com/cs/document/109741799/simatic-iot2000-sd-card-example-image
Setting up MultiTech LoRaWAN gateway on Ubuntu
As the convener for the Adelaide community of The Things Network, I am frequently setting up Multitech Conduit Gateways. Depending on your PC or notebook hardware you might have some problems with the Exar USB-UART driver on Linux.
Here are the steps to getting this unit setup from an Ubuntu (should work for any other Linux distro) machine.
lsusb
Should show something like this:
Bus 002 Device 006: ID 04e2:1410 Exar Corp. XR21V1410 USB-UART IC
Microchip LoRaWAN Development Utility on Ubuntu
Having just wasted a few hours on getting this Java software running on Linux I am documenting this for future reference and hopefully saving other LoRa / TTN folks some time.
Prerequisites
Install a Java JDK + JavaFX. This should work with the default OpenJDK 8 or 9 which comes as part of the Ubuntu repositories. I ended up installing Oracle JDK 8 as well as I thought the error might be related to OpenJDK.
RaspberryPi Version 3 SOE
Since there is now a supported Raspbian version without GUI and other unneeded add-ons available as Raspbian Lite the need to use other installers (with sometimes some downsides) is now not a necessity anymore. Below is a list of steps I like to perform before using them for any purpose as my Standard Operating Environment.
Download Raspbian Lite
Download link: https://www.raspberrypi.org/downloads/raspbian/
Write to SD Card
dd bs=4M if=2016-05-27-raspbian-jessie-lite.img of=/dev/sdb
Boot RPi
Default login details are
UID: pi
PWD: rasbperry
RaspberryPi real-world control with REST API
Finally found some time playing with a RaspberryPi and an attached PiFace Interface board to control some garden pumps and potentially an Aquaponics setup in the near future.
Requirements
- Raspberry Pi (Model B in my case, but any will do)
- PiFace Interface board (http://www.piface.org.uk)
Base Raspian (Debian Wheezy) Install (I prefer the clean minimal install via https://githutb.com/hifi/raspbian-ua-netins).
Configure the base system as per my previous base install.
Mobile sensors and the “Internet of Things” in learning
With the Internet of Things slowly becoming mainstream the potential uses of this technology can also be seen in the Education sector. This blogpost is the first installment of a series of posts that highlights practical examples that can be used in teaching and training.
Part 1 – Environmental Noise Monitoring
Some of the skills taught in these projects are: