Manufacturing the NeoTrellis M4 #ManufacturingMonday (video)

A peek inside manufacturing the NeoTrellis M4! The NeoTrellis M4 starts out as a stack of blank PCBs which pass through a series of machines, adding solder and all the components before heading into the reflow oven.

The NeoTrellis M4 is an all-in-one Audio board, ready to become your next synth, soundboard, drum machine, or keyboard. It’s powered by the SAMD51, a Cortex M4 core running at 120 MHz, featuring a roomy 512KB of flash and 192KB of SRAM. A separate flash chip provides a full 8MB of space for files and audio clips. On the front side is a 4×8 grid of elastomer button pads with a NeoPixel nestled in the center of each one. You can read any/all button presses simultaneously thanks to the fully diode’d matrix, and also set each button color to any of 24-bit colors. Young inventors and audio engineers rejoice!

Happy Manufacturing Monday from Adafruit!


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 code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, 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.

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