This is my Light-Bag bike project with Arduino.
Making the RGB leds blink to the left/right, while controlling them with a RC attached to the front handle. Arduino Nano with 2 RGB led strips, attached to bag pack and operated by 4 channel RF control. This project made for rear signaling when riding a bike.
The remote control connected to the front handle with Velcro.
Using Neopixel librery: https://learn.adafruit.com/adafruit-neopixel-uberguide/neomatrix-library
** When connecting to power bank USB charger, the PowerBankPresent value needed to be true- so it will keep the LED pin on HIGH, otherwise the power bank charger will stop working.