If you're dreaming of a low-cost (~20 €) gaming room illumination which also shows some effects while you're playing Counter-Strike: Global Offensive, this might be worth reading :)

• Features
• Required hardware
• Wiring
• Setup using Visual Studio Code
• Examples

• Idle illumination takes place at startup and after CS:GO inactivity. Idle lighting slowly sweeps through random colors. Inactivity time (default 2 min) and speed of the color sweep are controlled by corresponding values in user_config.h
• CS:GO: Health points are illustrated in the first 40 LEDs of the strip
  • Adjustable linear color scale from green to red. 100 HP = green, 50 HP = yellow, 1 HP = red.
• CS:GO: Armor points are illustrated in the last 20 LEDs of the strip
  • Linear brightness scale. 100 AP = blue full brightness, 50 AP = blue moderate brightness, etc.
• CS:GO: When bomb planted, elapsed seconds are shown as a red progress bar on the first 40 LEDs: one LED equals one second

• ESP32 (maybe ESP8266 would also work out of the box)
  • I happened to have "NodeMCU ESP32" development board with a Chinese price of 5 €
• 1 m long 5-volt WS2812B led strip with 60 LEDs
  • from an online marketplace for 7 €
  • Search for "WS2812B led strip 5V"
  • Also other LED strip lengths (= LED counts) will work, as long as user_config.h is updated
• 5 V DC power source with at least (60 mA * <total amount of leds>) output current.
  • For example, with 60 LEDs this would be 3.6 A, which equals to required output power of P = UI = 5 V * 3.6 A = 18 W.
  • From an online marketplace for 3-4 €
  • Search for "5V 4A DC power supply"
• Power plug jack for easy powering of the LED strip
  • Search for "2.1x5.5mm DC Power Plug Jack"
• A couple of jumper wires (male-to-female)
• Micro-USB cable for programming the ESP32

• ESP32 GND#1 to WS2812B GND
• ESP32 5V to WS2812B 5V
• ESP32 pin 15 to WS2812B DIN (middle)
• ESP32 GND#2 to power source GND
• Power source GND to WS2812B external power source GND
• Power source 5V to WS2812B external power source 5V

• Clone this repository (Ctrl+Shift+P, type "git:clone", https://github.com/epetin/gaming-lights-csgo.git)
• Install PlatformIO IDE extension (Ctrl+Shift+X, search for platformio)
• At PlatformIO Home select "Import Arduino Project"
  • Choose board: NodeMCU-32S
• Install required libraries and add them to the project (PlatformIO->Libraries->Search libraries...)
  • fastled/FastLED@^3.4.0
  • ottowinter/ESPAsyncWebServer-esphome@^1.2.7
  • bblanchon/ArduinoJson@^6.17.2
• Set your WiFi SSID and password in user_config.h
• Connect ESP32 to the PC with micro-USB cable
• Hit "PlatformIO: Upload" at the bottom of the VS Code window
• Press and hold "BOOT" button next to the USB connector on ESP32 until you can see that the binary is being uploaded to the device
• Open serial monitor, "PlatformIO: Serial Monitor") at the bottom of the VS Code window
  • You should see IP address of the ESP32 if it connected to your WiFi successfully
• Set this IP address in gamestate_integration_esp32.cfg and copy file to the CS:GO cfg directory (located at SteamLibrary\steamapps\common\Counter-Strike Global Offensive\csgo\cfg)

Tweak with the parameters in user_config.h and let me know if you have any cool improvement / development ideas on this project :)