Adafruit will not be shipping orders Martin Luther King Jr. Day, Monday January 21, 2019. Any expedited orders placed after 11am ET Friday January 18 will go out Tuesday January 22.

From the Forums: A NeoTrellis M4 Color Picker #NeoTrellis #Adafruit

 Trellis M4 Color Picker

From the Adafruit Forums, user jcalvin has written a color picker for the Adafruit NeoTrellis M4.

This editor starts up with the 12 colors from the Adafruit supplied file as colors that can be edited (these colors are read from saved_colors.txt). These 12 colors are displayed in rows 1-3. Choose a color to edit by pressing the button. The selected color blinks.

Row 4 displays the a sample of the color being edited.

Row 5 displays the red, green, and blue components of the color in row 4. If one of the component colors is at minimum value (0), the button will blink dimly with that component color. If one of the component colors is at maximum value (255), it will blink a bright version of that component color.

Row 6 is used to add red, green, blue, or white to the selected color. Holding the button down continues to add the color. Pressing multiple buttons at once works too.

Row 7 is used to subtract red, green, blue, or white from the selected color. Hold and multiple presses works here too.

Row 8 has the following buttons:
Column 1 – set the color being edited to white
Column 2 – set the color being edited to black
Column 3 – types the hex code of the current color to the selected window of the attached computer
Column 4 – save the changes to the selected color in rows 1-3, save also

    • – writes the hex code of the color to the console
              – attempts to write a file “saved_colors.txt” with the new 12 colors (attempts because this doesn’t seem to work while the device is USB mounted)

See the Adafruit Forum post for more info and code.

Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on, jump into CircuitPython to learn Python and hardware together, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

Join 9,700+ makers on Adafruit’s Discord channels and be part of the community!

What do you want from CircuitPython in 2019?

Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Follow Adafruit on Instagram for top secret new products, behinds the scenes and more

Maker Business — A field guide to designing your PCBs, learned the hard way

Wearables — A glowing start point

Electronics — Current limiting!

Biohacking — A Gene to Predict Modafinil Response

Python for Microcontrollers — Python snakes its way on the SparkFun SAMD21 Mini,, 10k thanks, and Tim’s magazine #Python #Adafruit #CircuitPython @circuitpython @micropython @ThePSF @Adafruit

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at !

No Comments

No comments yet.

Sorry, the comment form is closed at this time.