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Raspberry Pi

407 posts
In a post about accessing Amazon Web Services from Node-RED that I wrote for another device, I claimed that it would also work on a Raspberry Pi. I wrote that without testing. I guess I'll have to put the money where the mouth is, and show that the claim is true. Let's install Node-RED on a Pi and communicate with Amazon Web Services. image: action capture of AWS IoT Core's MQTT Test page shooting a message to the Node-RED running on YOUR! Raspberry Pi     Starting Position: Fre ...
IntroductionWhat is an indoor climate monitoring system and why do we need one?   Indoor climate monitoring systems provide a quick glance at key climate related statistics such as temperature and relative humidity. Being able to see these stats and receive alerts on your phone when the room is too humid or dry can be very helpful. Using the alerts, you can take quick necessary actions to attain maximum comfort in the room by switching on the heater or opening the windows.   In this ...
You probably have heard a lot about deep learning and AI and its impact on every aspect of our lives. So if you are inquisitive and excited to try your hand at developing a fun application that leverages deep learning and more importantly deploy it on a Raspberry Pi, this post is for you. Of course, there are lots of ways to get started with deep learning and then deploy the trained network on your desktop or on the cloud for inference. But, the path to deploying a deep learning algorithm to a ...
Introduction Fed up of leaving my Pi’s exposed, I was on the lookout for a Pi enclosure that would have space for additional circuitry. I frequently need a decent enclosure that doesn’t look out of place in a factory, not only suitable for deployments in industrial control panels, but also for home use and general experimentation too.   I recently purchased a new Pi 3 Model B+, and it was a good opportunity to look for a suitable enclosure. The Phoenix Contact RPI-BC seemed att ...
MQTT  MQTT is a machine-to-machine (M2M) data transfer protocol . MQTT was created with the goal of collecting data from many devices and then transporting that data to the IT infrastructure. It is lightweight, and therefore ideal for remote monitoring, especially in M2M connections that require a small code footprint or where network bandwidth is limited.   How MQTT work    MQTT is a publish/subscribe protocol that allows edge-of-network devices to publish to a broker. C ...
fmilburn

Pi Day

Posted by fmilburn Top Member Mar 15, 2019
There are only a few more hours left on Pi Day here in the Pacific NW and I am pecking something out on my tablet as I am away from my computer. I actually use a Raspberry Pi quite a bit for my hobby of tracking ships that go by using AIS but realize I have only made a couple of short posts here on element 14.   I used my winnings from a Project 14 contest to make an AIS ship tracker using a Pi and the official display.   Raspberry Pi with dAISy Hat running OpenCPN on Official 7" Dis ...
mconners

Some of my Ras Pi Blogs

Posted by mconners Top Member Mar 14, 2019
I had done some fun Ras Pi Blog posts in the past, here are a few highlights:     Ultra Sonic Distance Sensor Ping))) Me!!!     Photo Sensor Reading a photo sensor with the Raspberry Pi B+     Passive Infrared sensor PIR-fect   X Windows on the Raspberry Pi Taking Advantage of X Windows on Raspberry Pi   Enjoy!   Mike ...
This project demonstrates how to implement a PID based DC motor controller using Raspberry Pi. DC motor controller program is developed using Python. It consists of a GUI, RPM measuring, error detector, PID controller functions, and PWM generation function. The PID based closed-loop DC motor control system is one that determines a difference in the required speed and actual motor speed and creates a correction control signal to remove the error. To learn more about PID controller and DC Motor, g ...
This project is done with Open Source Computer Vision Library (OpenCV). OpenCV was designed for computational efficiency and with a strong focus on real-time applications. So, it's perfect for real-time face recognition using a camera. To create a complete project on Face Recognition, we must work on 3 very distinct phases:Face detection and data gathering, train the recognizer and face recognition. we will simply create a data-set, where we will store images for each id, a group of photos that ...
Recently I came across the nanonets.io website which provides APIs for image classification and detection. The one thing that caught my eye is the ease of use. Whenever you work around AI, it involves two steps, first is the training where a model is created from known data sets and the second phase involves the classification of unknown data by using the obtained model. The model’s accuracy increases as the training data sets size and quality increases. This is important because the image ...
  Next Biggest Breakthrough for Raspberry Pi is here!       Today I successfully compiled OpenCL on raspberry pi 3, Opening the door for numerous GPU possibilities for Raspberry Pi, Love the performance in FFMPEG(1080p rendering) and now looking forward to Deep-Learning applications on this little beast.       VC4CL is a newer effort bringing OpenCL to the Broadcom VideoCore IV GPUs as found in the Raspberry Pi boards. VC4CL implements OpenCL 1.2 for the Vid ...
This was a great article to read - https://www.techrepublic.com/article/inside-the-raspberry-pi-the-story-of-the-35-computer-that-changed-the-world/   The highlight for Pi fan in me, was to hear it from the horse's mouth on why Raspberry Pi got that name and it is definitely an interesting story. ...
The good folks at the Raspberry Pi Foundation will launch a new magazine called Wireframe on November 8th, 2018 which is dedicated to showcasing Indie Video Games industry as well as including reviews, how the top games are made and how to make your own games.  This is quite timely since it is something I am personally interested in and currently working on.   For a limited time, you can get a free hard copy of the magazine shipped to you; cost $2 for shipping to Cali in the US.  ...
  More detailed information: https://www.hackster.io/8bitsandabyte/the-goodbye-machine-automate-your-goodbyes-fc0ea7 ...
Full build video:   Project details: https://www.hackster.io/8bitsandabyte/project-boxboom-b592ef ...

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