Recent content by overthrow

Reviving an old thread. I've been using an AS5040 with a Raspberry Pi but I want to get rid of the RPI and go back to a Teensy 3.2. I went back and looked at the datasheet for the AS5040 and I noticed the maximum clock was 1 Mhz. I'm reviewing the Python code and it looks like there are 0.01...

What ethernet chip did you use? W5500?

I'm sure you could have found this easily enough yourself but it's a good reference. The RFC on Websockets. https://tools.ietf.org/html/rfc6455#page-14 and an Arduino websocket server that maybe could be used as a starting point. https://github.com/Links2004/arduinoWebSockets

There's a good image in this article on energy density of supercaps vs. lithium ion. It's an order of magnitude off, something to keep in mind. http://berc.berkeley.edu/storage-wars-batteries-vs-supercapacitors/

I think all the major programming languages already have client libraries for websockets. If you want to include a client example I would probably do it with Python. On the Teensy side one example should be for receiving commands, possibly commands to turn on Octo2811 LEDs, or even a single...

Supercaps charge fast and release their charge quick but they don't hold anywhere near as much energy as other batteries like lead acid, lithium, etc. The other issue is when they are near 0V and you apply voltage to them they basically dead short so you need a way to limit inrush current on...

On the client side I'm connecting from Unity using a .NET library. I'm making websocket connection from sending data and another for receiving it. In the robotics application I have I'm connecting to a lot of different sensors. One websocket is for an IMU, another is encoders, roboclaw motor...

I've been searching threads for anyone running a websocket server on a Teensy and I just see some dead threads from over a year ago. Is anyone doing this? Any code you can share? I'm trying to control some motor controllers with a Teensy and with motors, etc. Windows is too unreliable to use...

I tried the FastLed library which I noticed includes the OctoWS library in an example. I managed to get that to work on all 256 pixels. Thanks for the help!

The panel I have is setup to start Left and go Right on the first row which is 8 wide, so 8 columns, 32 rows. In the Plasma Animation example in Octows2811 library I have this definition at the top: #define COLS_LEDs 8 // all of the following params need to be adjusted for screen size #define...

I have an Octows2811 and an 8x32 ws2812b panel. The panels as far as I can tell are setup like a single row with an S pattern. I didn't see any threads on how to use it with the library or anything in the Octows2811 documentation? Has anyone tried this?

I'm trying to connect a second SSD1331 to a single Teensy 3.2. I'm sharing Pin 11 (DOUT) and Pin 13 (SCK) between the screens. Screen 1 has CS = 10, DC = 15. Screen 2 has CS = 9 and DC = 14. I'm trying to display a bitmap. I either get a working screen 1 and a blank or garbled screen 2. If I...

I'm looking at the Teensy schematic and it says 19 is SCL0 and 18 is SDA0. I was thinking those were SPI but now I see that they are I2C and 11 and 13 are SPI. Thanks!

I got a second screen from a different vendor today and connected it to the Teensy. I also verified that the SSD_13XX_settings.h file has #include "../_display/SSD_1331_96x64.h" uncommented and the boards I have look identical to the first one in the README file.

I have a 7-pin SSD1331 connected to a Teensy 3.2. I have CS on 10, DC on 9 and RST on 8 and I added digitalWrite(8, HIGH) in first line of setup so it gets 3.3V (tried both ways, no difference). SCL goes to pin 19, SDA goes to 18. I run the basicSetup sketch and errorCode equals 0, so no Init...