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MicroPython: WS2812B Addressable RGB LEDs with ESP32 and ESP8266 | Random Nerd Tutorials
This tutorial shows how to control WS2812B addressable RGB LEDs (neopixels) with the ESP32 and ESP8266 using MicroPython.
python  micropython  esp32  esp8266  arduino  embedded  neopixel  neopixels  led  randomnerd 
yesterday by cyberchucktx
How to Control Anything with a Wi-Fi Relay Switch Using aRest
By connecting a relay to a Wi-Fi connected microcontroller like an ESP8266, you can build a connected switch that can be controlled from the web browser of any device connected to the same Wi-Fi network — all for just a couple of dollars.
arest  embedded  arduino  webapi  wifi  esp8266  wireless 
2 days ago by cyberchucktx
The log/event processing pipeline you can't have - apenwarr
So good. Apenwarr knows how to design a system.
Simple things don't break. Our friends on the "let's use structured events to make metrics" team streamed those events straight into a database, and it broke all the time, because databases have configuration options and you inevitably set those options wrong, and it'll fall over under heavy load, and you won't find out until you're right in the middle of an emergency and you really want to see those logs. Or events.
logging  scalability  klog  kernel  log-processing  events  embedded  ops 
4 days ago by jm

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