IoT Sensors – Saving Collected Data

Now that my sensors are successfully collecting data and the data is being processed by a Node-RED flow on my Raspberry Pi the final step is to add some persistence to the data. As it stands the data is constantly streaming and being displayed on a dashboard but after that it’s discarded so there’s no […]

IoT Sensors – Data Collection

In the first part I talked mostly about the sensors and the gateway so in this article I’ll show you how to collect, filter and store that data from the sensors. My setup is running locally on my LAN and uses a Raspberry Pi 3B+ to process the data. I’ll be using Node-RED to process […]

IoT Sensors – Getting Started

Introduction I’ve been interested in setting up some home monitoring/automation since getting my first Raspberry Pi a couple of years ago. After using the device for various development projects I finally decided on my first project, try to make a basic home temperature/humidity monitor that cold measure both indoor and outdoors. The idea is to […]

Recovering Node-RED Flows After Changing Hostname

I recently changed the hostname on my Raspberry Pi and was rather surprised (and initially worried) when the next time I started Node-RED all my flows has disappeared 😱 It turns out that the flows are connected to the computer hostname by their naming convention. Someone even filed a bug regarding this unexpected behavior. The […]

IoT with Node-RED and Python

Now I have two Raspberry Pis running, one as a Bitcoin full node and the other mostly used as a dev/experimentation machine I decided it’s time to put the dev machine to some use. I’d also like to learn more about IoT (Internet of Things) and how they are wired together and communicate so this […]

Monitoring a Bitcoin Node Using Node-RED

Now my Bitcoin Full Node is fully synchronized and running I thought it would be good to set up some simple monitoring to check it’s still up and up to date with the Bitcoin Blockchain. Bitnodes API Helpfully there’s already a site that monitors all the full nodes and also provides a handy API at […]