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ESP8266/ESP32 neopixel 16x16 display drive
Posted: Tue Feb 13, 2018 4:33 pm
by shaoziyang
ESP8266/ESP32 neopixel 16x16 ws2812 display drive.
- 16x16.gif (149.2 KiB) Viewed 2300 times
https://github.com/shaoziyang/mpy-lib/t ... /neo_16x16
Re: ESP8266/ESP32 neopixel 16x16 display drive
Posted: Wed Feb 14, 2018 7:30 pm
by fdushin
Cool.
I made a night/morning/wakeup light using an array of 9 neopixels (hand-soldered).
Code is at
https://github.com/fadushin/esp8266/tre ... on/neolamp
Observations:
- I had to power the Neopixels off 3.3v, on account of a large voltage difference between the 5v power supply and the 3.3v data channel [1]
- I am crunched for memory on an ESP8266, even with all my frozen byte code! Any new features I add will basically require an ESP32.
I will post a blog about this, once I get some free time (never).
[1]
https://ben.artins.org/electronics/glitchy-neopixels/