This Makeblock project controls a string of Neopixels connected to Pin 1 on a BBC Microbit. Button A changes colour (in 12 steps around the colour wheel) and Button B changes brightness (from off to full brightness in 6 steps).
The script also transmits and receives hue, saturation and luminosity values, allowing a second Microbit to be used as a controller for a lamp, or multiple lamps to synchronise with one another. A unique radio channel number should be used to pair a single lamp with a single remote control.
If the LEDs start flickering then you are drawing tou much power. Turn the brightness down with Button B.
Ppen the URL: https://github.com/seancuttlefish/microbit-lamp