UDP is an excellent protocol for sending messages between nodes in a system with Ethernet or Wifi. It’s speed and behavior on a modern PC’s allows in the region of 100,000 messages per sec, which should be sufficient for most applications.To make a Connection you only need two end-Points of which one need to have…
easyIPC is the protocol and collection libraries I use to communicate cross various networks. easyIPC is not bound to a special technology as it provides universal device to device access through a variety of technologies including Ethernet/Wife, RS485, CAN, and SPI and in time others. UDP, SPI, UART and CAN are examples of technologies I…
First 3D draft of the RS485 Hub. I have moved all connectors to left and top because it will be attractive to use this together with RPI 3B+ that have Ethernet/USB at right. As mentioned I could have used XPortHub for this, but I often need exactly RS485/Ethernet in higher density because RS485 is very…
XPortHub is great if you need a combination of ports, but I often need a high density of one port type so I made RS485Hub with 6 x RS485 ports, 2 x CAN ports and 1 x USB. This is basically a simple Hat where I take advantage of the high number of RS485 ports…
The main objective with an Abstraction Layer is to protect user modules from changes between platforms. Code on user level should be portable and plug & play after you done a 10 minute task of soft-wiring. I decided on the name “Abtraction Layer” because HAL (Hardware Abstraction Layer) is missued to much and was not…
I feel bad about my 300.- USD 3D Printer collecting dust in my lab, so I want to do something about it. This was a Prusa i3 Gen 1 clone and it ha loads of issues that came with Gen 1 printers – that said, it actually work and do a decent job for what…
It’s been a while since I designed this 3KW 3-Phase Motor Controller without doing anything with it so I decided to give it an upgrade. The size of this is 100x25mm. It is very smal for it’s capacity and Perfect for larger drones. Removed 3rd current sensor. Remove the output holes at right and take…
A common problem with plotting lines in raster graphics is visualization errors as we display the graphics. Most times we can just ignore these, but as I am drawing scrolling real-time plots I also receive the side effect of an integer error. This show a line that due to integer rounding is a straight line…
I have so far never seen a performance test where C/C++ did not win an easy victory due to it’s nature, but I am very curious about what I see in front of me now. The failure I pointed out earlier is how .NET or Windows behave then you push it to it’s limits, but…
I did a lot of work in C#/Forms a few years back and found it to be a bit to slow for actual usage. It was easy to get fancy UI graphics done, but you instantly started struggling with performance on the screen. I remember using ca 1 month to get the functionality done and…