I’ve coded up a simple test of the peer-to-peer protocol I’ve been discussing recently. Here is a picture of the set-up: For this test, I have 3 light posts transmitting short 10byte packets as fast as they possibly can given the constraints of the protocol. These constraints basically reduce to: You can’t send a packet…

I have recently been working on designing a peer-to-peer RS485 network protocol with collision avoidance (and maybe even collision detection) for the walkway lights on the land. (Link to last two posts: here and here.) As mentioned in my last post, even though each device is doing its best to detect if another device is…

In my last post, I mentioned that I am working on a peer-to-peer network protocol for the RS485 network that I am using to communicate between my “smart walkway lights”. In today’s post, I will continue with a general outline of the approach I plan to take. This is all very nerdy, so if you…

It has been a bit quieter than usual on this blog recently. It isn’t that we haven’t been up to much. Quite the contrary, it has been very busy. But much of the business (busy-ness) has been either at work. And the land work has mostly just been putting finishing touches on projects that have…