https://github.com/teuler/pyboard_led_stimulator

Full-field LED stimulator running on the pyBoard using MicroPython
https://github.com/teuler/pyboard_led_stimulator

Last synced: 18 days ago
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Full-field LED stimulator running on the pyBoard using MicroPython

• Host: GitHub
• URL: https://github.com/teuler/pyboard_led_stimulator
• Owner: teuler
• Created: 2017-03-11T08:10:15.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2017-03-14T14:58:40.000Z (over 9 years ago)
• Last Synced: 2025-03-02T04:34:33.934Z (over 1 year ago)
• Language: Python
• Size: 472 KB
• Stars: 0
• Watchers: 1
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
## pyBoard_LED_stimulator

Full-field LED stimulator running on the pyBoard using MicroPython.

![](https://github.com/teuler/pyBoard_LED_stimulator/blob/master/pictures/2017-03-11_09_04_15.jpg)

First test version, with 4 LEDs connected to pins X1 to X4, a synchronization signal ("trigger") provided at pin Y11, and a fast, external "blanking" signal (high == LEDs off) received at pin Y10.

### Release Notes

* 2017-03-10 - First test version

  Tested with a 500 Hz (0.4 ms off-time) blanking signal provided by an Arduino: With the current code, the blanking is not reliable;

  the LEDs are blanked for longer periods at irregular intervals. Possibly due to the garbage collector running in the background.

  Turning off garbage collection caused memory problems; these can probably be addressed by removing all dynamic memory allocations, but 

  this also removes advantages of using Python (vs. for example C on an Arduino).

  

  ![](https://github.com/teuler/pyBoard_LED_stimulator/blob/master/pictures/2017-03-11_09_02_55.jpg)