Steel Yard v1

Provides the software function for the Lamp Building class

Hardware

Adafruit Trinket M0

https://www.adafruit.com/product/3500

Pinouts https://learn.adafruit.com/adafruit-trinket-m0-circuitpython-arduino/pinouts

USB Cable for Power (good enough for 12 LEDs as-is)

This is the simplest and w/ only 12 LEDS can power from a computer or any USB charger. If you add LEDs to a different Neopixel you may want to one of more of the following:

• use a high power USB charger
• change brightness in the software
• bring in Power on Battery or USB pin rather than connector (read the docs for safety, etc)
• Power Neopixl differently based on your choices
• add hardware: a barrel jack power input and switch

Consder adding a SPST on/off switch

Select desired Adafruit Neopixel

Neopixel options: https://www.adafruit.com/category/168

Tested w/ software and USB power:

• NeoPixel Ring - 12 x 5050 RGBW LEDs w/ Integrated Drivers - Warm White - ~3000K https://www.adafruit.com/product/2851
• TBD

Wiring

Neopixel 3 wires 5V, GND and Data In

Get the 5V from USB, GND from the GND pin and use D4 for the Neopixel Data

Wire button 1 to isolated capacitence material (CAPTOUCH)

Button 2 has 3 modes: rainbow to selected color, display all LEDs in selected color and white leds. Touching toggles to the next mode in the sequence. Wire to A0 (aka D1)

Wire button 2 to isolated capacitence material (CAPTOUCH)

This is optional and if you leave it off you probably want to change the software to ignore it and have a default brightness. Button 2 supports 5 levels of brightness. Touching toggles to the next brighest and the back to the dim setting. Wire to A3 (aka D3)