Category: General

ESP32-C3 based thingi in the works.

The problem of priority inversion is well-known and.. actually, scratch that: it’s clearly not well known at all because people keep making the same mistake. So we are publishing this to try and explain the problem (with reference to CAN) in the hope that a search engine indexes this and puts it high enough up the search results for people to find.

Source: CAN Priority Inversion | Dr. Ken Tindell

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Worth reading while not a problem in VSCP for most cases. But VSCP uses it’s priority bits and if building real time systems this should also be thought of for VCSP.

 

Maybe it is time to give up. 🙂

Can as well go on vacation now until spring is here as it looks.

But VSCP is a perfect match! (If I may say so myself… :/)

MQTT is a popular protocol for connecting Internet of Things (IoT). But it’s incompatible with Narrowband-IoT (NB-IoT) – an increasingly popular communications standard for most IoT projects. It works fine during prototyping, giving companies the false impression that MQTT is the right choice of protocol.But chances are high that products using MQTT will suffer performance issues or completely malfunction when they’re in the field. This problem is exacerbated by the fact that many manufacturers and system integrators aren’t aware of the consequent risks: high-expense support efforts, the need to reengage development teams, problems in distributing firmware updates to the device fleet, and product recalls.

Source: How MQTT on Narrowband-IoT Can Ruin Your Project – Embedded Computing Design

https://www.picmg.org/ModBlox7/

It’s a special kind of happiness when something that just been a though in your head turns into something you can hold in your hand. I never get tired of that process. Its a bit like having another kid actually. Every time.

After participating in a panel on Matter at Silicon Labs’ Works With event on Tuesday and conversing with attendees throughout the event, I think the initial response to Matter is going to be tepid at best and downright aggravated at worst.

Stacey Higginbotham’s weekly Internet of Things news update and analysis.

Best explanation I have ever seen (so far).

https://typefully.com/DanHollick/qr-codes-T7tLlNi

Will it fit? is always the first test. Pugh, it did! Now it should work to…

Eventually this will be a wireless CAN4VSCP gateway. Oh well it already is but still some more programming is needed. VSCP tcp/ip link interface, UDP, MQTT, BLE for this wifi device. OTA updateable of course.

Also a HAN P1 interface board entered the office today. Interfacing electricity meters is popular today.

The pcb’s are made by jlcpcb and I am VERY satisfied with the service and quality from them. There is nothing like it. Important is that I don’t get a single cent from anyone to tell you that.