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Found 14 results

  1. Nick Gammon published an interesting post on using SPI on 16 MHz Arduinos to run WS2812 LEDs (aka neopixels) at: http://gammon.com.au/forum/?id=13357. He also provides a link with a lot of information about the NRZ protocol used by the WS2812 and tolerances: https://wp.josh.com/2014/05/13/ws2812-neopixels-are-not-so-finicky-once-you-get-to-know-them/. The tolerances are actually quite a bit looser than what I previously believed. So, I set out to do something similar with Energia and LaunchPads running at different speeds. Spoiler alert: It works. The previously linked articles provid
  2. If you have one of those 5050/WS2811 aka WS2812 strips and you want to "wear" it, I have a board for you. Here are the specs: 20pin MSP430G2xx3 5V power supply 0.05" programming header UART input (allows pixel or sequence control) 11mm wide (0.45") 25mm long (1") 32mm long (1.25") - version with memory optional SOIC SRAM or EEPROM 1mm thick There are 4 boards on the panel, 2 with memory option. Assembled boards Board in the sleeve Board attached to 30 LED strip (0.5m)
  3. Those APA-102 leds that are packaged like ws281x pixels but you drive like a ws2801 (clk/data) have hit ebay.com. I ordered a 1 meter length and it arrived today. They look and feel like a ws2811 strip. It has 4 connections. 5V, GND, CLK, DATA. I whipped up a quick test and they seem to be happy: /** * APA-102 - test of 5 leds * * Author: rick@kimballsoftware.com * Date: 09-11-2014 * */ #include <fabooh.h> #include <main.h> #include <spi.h> namespace { typedef spi_attr_t<> SPI_MODE3_A; typedef spi_eusci_b0_t<CS, SCLK, MOSI, NO_PIN, SPI_MODE3_A >
  4. WS2812 driver for Tiva (and Stellaris.) It uses hardware SPI and is non-blocking (you can run your code while updating WS2812.) 7/31 - updated demo code and fixed comments about timing main.cstartup_ccs.c
  5. This project is an offshoot of an earlier investigation of wireless wearables using the MSP430G2553: http://forum.43oh.com/topic/10060-msp430-wearable-with-radio/. The concept has been successfully tested and is described below. I plan regular updates as the project progresses. The objective is to develop a wearable powered by a coin cell that can be controlled remotely. It could be used, as an example, in the tiara below or on a costume worn by dancers in a performance and controlled from offstage. In the photo an earlier MSP430G2553 coin cell powered wearable is attached to the tiar
  6. i tried without luck all the WS2812 / WS2811 related libraries shown at http://energia.nu/reference/libraries/ they all seem to address different mcu types (?) like https://github.com/ILAMtitan/WS2811Driver complains: 0: fatal error: msp430.h: No such file or directory #include <msp430.h> ^ compilation terminated. and the adafruit neopixel lib for arduino: simple.cpp:5:23: fatal error: avr/power.h: No such file or directory #include <avr/power.h> ^ compilation terminated. actually i need to address only one single WS2812 l
  7. WIZpix is an internet enabled RGB pixel controller with built in PoE. WIZpix uses W5500 internet appliance to connect to internet and MSP430F5172 MCU to control RGB pixels. Built-in DC/DC converter allows use of PoE, which eliminates need for directly connected power supply, ability to place controller far away from the outlet, and use of only one inexpensive CAT-5 cable. It
  8. WS2812 driver for Tiva is available here
  9. Has anyone hooked up some ws2811 or ws2812 pixels to a connected launchpad (with a 120MHz TMC1294x processor) The closest example I could find for this platform was bit-banging in assembly code for the MSP430 processor. The most common technique on other platforms (Arduino, Pi) is "Fast SPI" where they change the clock rate on the SPI bus to match that of the pixels and send the data out that way. That's kinda pushing the limits of my skills/knowledge though, without an example to look at.
  10. I built a 3d printer last year and needed a small light to illuminate the build area, this is what I came up with. I call it the ringLight. I thought about using an Adafruit Neopixel ring, but due to the finished part being for a specific size I decided to roll my own. I used a MSP430G2452 in the TSSOP 14 pin package for the micro. I have to thank every one on the forum for the wealth of info related to the WS2812 leds, and a special thanks to @@oPossum for the led driver code he posted. The code is pretty straight forward. Once powered on the msp430 loads what ever value from flash
  11. WS2812B is the new and improved version of the WS2812 LED (a.k.a. 5050/WS2811.) For chip details and differences between WS2812, see attached. I have LED and 30LED/m, 60LED/m strip samples (no, not free ) available on Tindie. WS2812B_preliminary.pdfWS2812B_VS_WS2812.pdf
  12. This project is an update to the binary clock that I used on my desk. The new version has a lot of new features including RGB leds(WS2812), a bigger microcontroller(The Olimexino-5510 board), capacitive touch and light sensor. My first idea was to have something based on the MSP430G2553, a couple of WS2812 leds and capacitive touch. But after comparing the work i would have to do, and very few rewards to the Olimexino-5510 functionality I quickly reconsidered. The Olimexino-5510 provides quite a few things I wanted: MSP430F5510 Battery Charger USB capabilities Arduino Form Factor So all I ha
  13. Created as part of GB#11, this booster pack uses 5050 RGB LEDs with integrated WS2811. Will post code examples later on. BTW, I cannot get a preview of this YouTube video to show up, can you check it out B#?
  14. This is a continuation of this project. While playing around with my WS2811 strips, I figured that it would be nice to have a board like this one. Could be used with one or two EQ chips and as a stand-alone board. The question is: with booster pack support or without?
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