The Wiert Corner – irregular stream of stuff

Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for the ‘IoT Internet of Things’ Category

MeshCore – Off grid mesh radio communications system

Posted by jpluimers on 2026/06/02

In a world where it becomes increasingly important to think and act on situations where for various communication via traditional means is not that easy any more, then LoRa (Long Range) wireless networks have been steadily gaining ground: they use open frequencies and for some of these networks, their repeater structure is largely ran by communities of volunteers.

Both communities and devices have evolved so far that its not just for early adopters any more: mere mortals can use it too.

In the LoRa area, MeshCore looks to have become the successor of Meshtastic:  [Wayback/Archive] MeshCore – Off grid mesh radio communications system.

The core difference between these two LoRa networks is explained in the Wikipedia article on MeshCore:

MeshCore is often compared with other LoRa-based mesh networking systems such as Meshtastic. While Meshtastic primarily relies on broadcast-style message flooding, MeshCore emphasizes structured routing roles and store-and-forward mechanisms, resulting in different scalability and energy-consumption characteristics.

Communication over the MeshCore network reminds me a lot of three things, in this chronological order:

I think about everything of MeshCore is open source; mostly hosted in the hierarchy at [Wayback/Archive] MeshCore · GitHub.

MeshCore is fairly young which means it will have growth pains, and some hardware pains (like a node being limited to about 500 messages/hour because of physical bandwidth limitations – smaller cells work better than the FidoNet hub/spoke model – see the Dutch section below) but it also cool to see it evolving.

This blog post is going to be long, as a lot of MeshCore information is spread around the interwebz, so there is a lot to link to.

Read the rest of this entry »

Posted in Development, Hardware, IoT Internet of Things, LoRa - Long Range wireless communications network, Network-and-equipment, Power User, Python, Scripting, Software Development, Solar Power | Tagged: , , , , , , , , , , , , , | Leave a Comment »

Reflection Frame: is there a public API yet?

Posted by jpluimers on 2026/04/09

The display quality of [Wayback/Archive] Reflection Frame is nice, but the there was no public API at the time of writing, so I wonder if there is now.

Public API request initially denied at [WaybackSave/Archive] Reflection Frame: Digital Photo Prints by Creative Design Worx — Kickstarter:

  1. Would you expose some simple REST API that would accept a jpeg or similar? It’s fine if it needs to be pre-dithered. Only interested in this if it can be controlled from Home Assistant, not interested in manually using any smartphone app.
  2. … At this time, we don’t have plans to open-source the connection protocol, as our hardware and firmware are designed as a proprietary system. …

Via [Wayback/Archive] Colour E-Ink Picture Frame – The Reflection Frame – YouTube.

--jeroen

Posted in Development, Hardware, Hardware Interfacing, IoT Internet of Things, Power User, Software Development | Leave a Comment »

Some links on non-official Ring API libraries and tools

Posted by jpluimers on 2026/03/26

There is no official Ring API. But there are libraries and tools around that can talk to a Ring ecosystem, mostly written in JavaScript or Python.

Some links I found:

Read the rest of this entry »

Posted in *nix, *nix-tools, cURL, Development, Hardware, IoT Internet of Things, JavaScript/ECMAScript, Network-and-equipment, Power User, Python, Ring Doorbell/Chime (Amazon), Scripting, Software Development | Leave a Comment »

Ring Video Doorbell Comparison chart

Posted by jpluimers on 2026/02/16

Yes, I know: Ring and controversy.

Still need to figure out how to replace their ecosystem without shelling out far above 1K of money though, so for now – as our main doorbell is showing deterioration and hoping there would be PoE powered ones – a comparison chart PDF:

Read the rest of this entry »

Posted in Hardware, IoT Internet of Things, Network-and-equipment, Power User, Ring Doorbell/Chime (Amazon) | Leave a Comment »

From Meh to WOW – With 1 “Tiny” Hack! – YouTube – where the comments mention better ways than this convoluted solution

Posted by jpluimers on 2026/02/03

[Wayback/Archive] From Meh to WOW – With 1 “Tiny” Hack! – YouTube shows an interesting but convoluted solution to solve temperature drift on a cheap Tuya WT410-BH-3A-W thermostat (there are similar models, see below) based on the replacement sensor [Wayback/Archive] WSEN-TIDS Temperature Sensor IC & EV-Kits | Sensors | Würth Elektronik Product Catalog.

Luckily the commenters stepped in and suggest better and easier ways.

On the other hand, the solution is nice to know as it allows plugging in a remote thermostat that sits in a better place to read the temperature while the control bits stay in a place where it is easier to manually adjust.

Chapters:

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Posted in ARM Cortex-M, Development, Domotics/Smarthome, ESP32, ESPHome, Hardware, Hardware Development, Hardware Interfacing, Home Assistant, Homey, IoT Internet of Things, Network-and-equipment, Power User, STM32 | Leave a Comment »

Interesting; Meshtastic

Posted by jpluimers on 2025/11/27

ImageOn my list of hardware/software to experiment with is [Wayback/Archive] Meshtastic:

An open source, off-grid, decentralized, mesh network built to run on affordable, low-power devices

Via [Wayback/Archive] @jilles_com@infosec.exchange on Twitter: “Will be taking to meshtastic.org Lora 433MHz modules to @hotelhacker. Might be cool if more people could bring some to setup a larger mesh and play with them. amzn.eu/d/aCgULy4

Products:

For both boards, this holds:

1. The Meshtastic program is not pre-installed on this product. If you need to install, please check the steps:

github.com/geeksville/Meshtastic-Android/blob/master/README.md

github.com/meshtastic/meshtastic-device/releases

2. If GPS does not work, the following situations may occur:

Install the Meshtastic firmware before and now reset the GPS when you switch to another firmware.

Reset steps: github.com/Xinyuan-LilyGO/LilyGo-LoRa-Series/tree/master/firmware/GPS_%20reset_test

3. If GPS is weak indoors, it can be used outdoors

4. The GPS antenna is not installed stably, you can check if the interface is attached to the GPS antenna

Related:

–jeroen

Posted in Development, Hardware, Hardware Development, Hardware Interfacing, IoT Internet of Things, LoRa - Long Range wireless communications network, Network-and-equipment, Power User | Leave a Comment »

My geigercounter (thanks Dinsdale for doing almost all the work!)

Posted by jpluimers on 2025/10/31

Thanks [Wayback/Archive] Dinsdale. – D💉ane ديانا дiане Blijf thuis ⭕️🇺🇦 (@Dinsdal85174312) / Twitter for all the effort (solder, 3D-print, assemble) to get it to work!

Documentation links:

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Posted in Hardware, IoT Internet of Things, LoRa - Long Range wireless communications network, Network-and-equipment, Power User | Tagged: | Leave a Comment »

Domotica/IoT: Smarthometweaks uit de community – Tweakers

Posted by jpluimers on 2025/10/13

Interesting ideas about home automation, domotics and IoT:

  1. [Wayback/Archive] Smarthometweaks uit de community – Tweakers
  2. [Wayback/Archive] Smarthometweaks uit de community – Verlichting – Tweakers
  3. [Wayback/Archive] Smarthometweaks uit de community – Huishoudelijke taken – Tweakers
  4. [Wayback/Archive] Smarthometweaks uit de community – Huisgenoten en -dieren – Tweakers
  5. [Wayback/Archive] Smarthometweaks uit de community – Verwarming, klimaat en energiegebruik – Tweakers
  6. [Wayback/Archive] Smarthometweaks uit de community – Multimedia – Tweakers
  7. [Wayback/Archive] Smarthometweaks uit de community – Platform en automatiseringsfilosofie – Tweakers
  8. [Wayback/Archive] Smarthometweaks uit de community – Platform en automatiseringsfilosofie – Tweakers

–jeroen

Posted in Domotics/Smarthome, Hardware, IoT Internet of Things, LifeHacker, Network-and-equipment, Power User | Leave a Comment »

433 MHz is not dead! Using an ESP32 board with LoRa module to talk to 433 MHz sensors – CNX Software

Posted by jpluimers on 2025/09/23

This was a cool post: [Wayback/Archive] 433 MHz is not dead! Using an ESP32 board with LoRa module to talk to 433 MHz sensors – CNX Software

433MHz LoRa Transceiver-based ESP32 board work with regular 433 MHz sensors found on the market. This gives end users a simple off-the-shelf solution for receiving these signals without having to use a soldering iron and making a circuit.

This opens many doors regarding 433 MHz sensor readings with one device, including weather stations, doors, PIR, TPMS, temperature, and BBQ sensors.
Recommended reading!

Related: [Wayback/Archive] Making your RF 433mhz sensors and devices communicate with your home automation, gateways comparison

–jeroen

Posted in Development, ESP32, Hardware, Hardware Development, IoT Internet of Things, LoRa - Long Range wireless communications network, MQ Message Queueing/Queuing, MQTT, Network-and-equipment, Power User, Software Development | Leave a Comment »

How to change the ringtone on your doorbell – The Verge

Posted by jpluimers on 2025/07/14

[Wayback/Archive] How to change the ringtone on your doorbell – The Verge (quote for my Ring camera as I always forget their link):

Read the rest of this entry »

Posted in Hardware, IoT Internet of Things, LifeHacker, Network-and-equipment, Power User, Ring Doorbell/Chime (Amazon) | Leave a Comment »