VSCP
29 posts in this category
Decision Matrix # 0x0 0x40 0,0x1E,0x05,0,0,37:00:00:00:00:00:00:00:00:00:00:00:00:00:00:99,0x00,0x01,50 Week, bedlight ON (green) at 7u00. Send Control, TurnOn event for zone 1, subzone 50 0000-01-01 …
My Mespelare firmware doesn’t support Control, TurnOn/TurnOff actions. Since I needed it for my kids bed buttons/lights, I added it to the Mespelare firmware. File versions # From the comments …
This page describes how to automatically send events on the VSCP bus on specific, pre-determined moments. This is useful for example to every night turn off any lights that might have been left on. …
This article describes how to control VSCP events from a web page. It is based on websockets which connects to the VSCP daemon. Web page # Button # To be able to trigger events on the VSCP bus from …
This is a quick video tour of my home automation system. .
This article is a check-list for configuring Mespelare nodes as I integrate them into my house’s lighting and power system. It describes the steps to follow to properly configure each node, so that I …
Here’s an overview of how to install vscp_software on a Raspberry Pi. It is based on the tutorial on setting up the VSCP daemon on Unix . I’m not only giving the commands but also the verbose output …
The Hasselt code uses a non-standard bus speed of 250kbps. In order to stay in sync with the rest of the VSCP development community, I changed it back to the 125kbps which everyone else is using. …
An important design criteria for my home automation is that nodes should be able to continue performing (basic) actions autonomously, even when they loose connectivity to the VSCP bus. Therefore I …
/Frontpage thumb.png) Since version 1.0.0.70, VSCPworks reads registers using CLASS2_LEVEL1_PROTOCOL, EXTENDED_PAGE_READ. In reply to this request, the VSCP node …
The original Hasselt firmware runs a 10ms timer on Timer0 in interrupt isr_low. The code for Mespelare could use a timer that is a bit less granular than 10ms, for example for the new output PWM …
The Hasselt code has defined several actions for its outputs: On, Off, Toggle and PWM. My house’s lighting system uses pulse relays so I couldn’t really use any of these actions, I need the action to …
VSCP uses registers to read and write information to and from a node. This article describes the way the addressing of these registers works in VSCP. It describes the mapping of registers in the MDF …
An MDF has a fixed structure as outlined below. Header # The file starts with a header. This tells the software reading the MDF what XML version and encoding to expect, sets the MDF version number and …
As the C18 compiler is no longer supported by Microchip and the rest of the VSCP group has migrated their code to XC8, I needed to migrate my Mespelare firmware as well. This article describes the …
Before putting the Mespelare board into production, I wanted to do a final proof-of-concept test to make sure the hardware design is 100% correct before ordering the boards and components. I wanted my …
This article describes my roadmap for developing a home automation system based on VSCP. While I generally try to avoid any Project Management in my hobby projects, this roadmap does keep me focussed …
Now that I have the code for the Mespelare module mostly working, it is time to update the VSCP firmware to the latest version. A few years have passed since Kurt has written the firmware for Hasselt …
After lots of testing, reading code and checking, I came to the conclusion that the MDF file for the Hasselt module is bad. That statement goes for any version of the MDF that I was able to find …
Learning the way existing code works is much easier when you can have insight in the code as it runs. While we can’t really look inside a running microcontroller the way we can with programs on a …
In the previous articles we’ve [ran the modified firmware for our Mespelare module for the first time](/posts/Running the Mespelare firmware/). In this article we’ll play with the Decision Matrix so …
The firmware for the Mespelare board will be based on kurtsidekick’s Hasselt firmware. To gain a good understanding of how this firmware works, we will dissect it in detail in this article. We’ll be …
This article describes how to use the USB2CAN interface with VSCP on Linux. While I am installing the interface on Ubuntu Linux, there is no reasons why it shouldn’t work on other distributions as …
The VSCP Daemon is a service that forms an abstraction layer between the application(s) and the hardware interface. We’ll use it to allow multiple applications to connect to the bus through the same …
This article is a collection of links to documents that have good information for people starting with VSCP. Besides reading the complete protocol specification, they explain some of the basic …
In the previous articles we’ve set up our tool chain and compiled source code for the first time . In this article we’ll be modifying the source code we’ve downloaded to fit the Mespelare board. We’ll …
In previous articles we’ve set up our tool chain and developed a new VSCP interface board . Before we start writing firmware for the Mespelare board, we’ll try to compile Kurtsidekick’s code for the …
I’m experimenting with VSCP. The Very Simple Control Protocol is a simple but clever protocol implementation. Its creator made some of the same design choices I would have made, so it will be …
The Mespelare node is a VSCP board based on the Hasselt board by kurt_sidekick , used to read a Niko 6-way potential-free button set , and control it’s 6 indicator LEDs as well as 6 outputs …