ATTINY45-20PU DIP-8package 8-bit microcontroller-MCU 4KB Flash 0.256 KB EEPROM 6i/O Pins Custom Ask before you buy - AliExpress
shinajaran: Wearable Electronics: Arduino X ATTiny85 with WS2812/2811 addressable RGB LED strip
ATTINY Blue Black TINY85 Digispark Kickstarter Micro TYPE-C Development Board ATTINY85 module for Arduino IIC I2C USB ATTINY45 - AliExpress
GitHub - jaimelaborda/Attiny85-RGB-LED-Strip-Driver: RGB LED Strip Driver based on Attiny85 microcontroller programed on Arduino IDE. Drived by 2N7000 low-cost FETs.
Tutorial 8: RGB LED interfacing with ATtiny85
ATtiny85 to control three 12V LED strips using TIP122 - General Electronics - Arduino Forum
Use a $1 ATTiny to Drive Addressable RGB LEDs : 6 Steps - Instructables