martin malm

My goal is to send videoframes from MAX/MSP/Jitter over WIFi and display them on a LED strip. My hardware setup is:

Adafruit Dotstar(APA 102C) 144 pixels LED strip

Adafruit Feather Huzzah (ESP 8266 based dev board)

Software wise I have tried two different aproaches in the last weeks:

For simplier stuff like setting monochrome colors or sending video to a portion of the strip both aproaches work ok. However, when I try to send video or noise to the whole 144 pixel strip I get really bad framerates.

I'll try to describe the different problems I have run into with the two aproaches and hope that someone can point me in the right direction. I'm a newb when it comes to networking and programming, so I'm probably missing something obvious.

OPC is a simple protocol to control LED pixel arrays described here:

I'm using sadam.tcpclient to send data to the OPC server running on the Huzzah. Simple stuff works fine but I get bad framerates with video or noise.

I have tried the setup (server code running on the huzzah) with a processing sketch and from there I can display video on the LED strip at 30 fps, so it has to be something I have to do differently in MAX.

I use the CNMAT OSC objects and OSCUINO to comunicate with the Huzzah. Simple stuff works fine with good framerates when setting monochrome colors or displaying video on just a portion of the strip. There also seems to be some "clipping" going on since OSC messages with data for more pixels than around 90 pixels don't seem to arrive at all.

I'm very grateful for all help I can get with this. Maybe there is a whole new other aproach I could try?

Adafruit Feather Huzzah (ESP 8266 based dev board) 

OSC over udp
OPC (Open Pixel Control) over tcp

For simplier stuff like setting monochrome colors or sending video to a portion of the strip both aproaches work ok. However, when I try to send video or noise to the whole 144 pixel strip I get really bad framerates. 

OPC is a simple protocol to control LED pixel arrays described  here: 

I'm using sadam.tcpclient to send data to the  OPC server running on the Huzzah. Simple stuff works fine but I get bad framerates with video or noise. 

I use the CNMAT OSC objects and OSCUINO to comunicate with the Huzzah. Simple stuff works fine with good framerates when setting monochrome colors or displaying video on just a portion of the strip. There also seems to be some "clipping" going on since OSC messages with data for more pixels than around 90 pixels don't seem to arrive at all. 

I'm very grateful for all help I can get with this. Maybe there is a whole new other aproach I could try? 

network-performance-sending-video-to-led-strip-over-wifi

Im working on almost the same thing, only a different hardware setup:

opc server running on a beaglebone black with a rgb123 ledcape, i can also test it out with an opc server running on a raspberry pi or my mac with a fadecandy. Im trying to find the sadam.tcpclient but it looks like the site is offline / blank. (

 if you could send me those i can test a few things out.

Im working on almost the same thing, only a different hardware setup:
opc server running on a beaglebone black with a rgb123 ledcape, i can also test it out with an opc server running on a raspberry pi or my mac with a fadecandy. Im trying to find the sadam.tcpclient but it looks like the site is offline / blank. (http://www.sadam.hu/software) if you could send me those i can test a few things out. 

I have been away from home / computers / MAX etc for a while. I finally got my patch to work by using sadam.tcpSender instead. I still would like to investigate why it doesn't work with madam.tcpClient, but for now this will do. Would be very interesting to hear about your progress.

Network performance: sending video to LED strip over WIFI