Adafruit NeoTrellis M4 Mainboard - Featuring SAMD51
Adafruit NeoTrellis M4 Mainboard - Featuring SAMD51
Adafruit NeoTrellis M4 Mainboard - Featuring SAMD51
- ATSAMD51 32-bit Cortex M4 core running at 120 MHz (32-bit, 3.3V logic and power) Hardware DSP and floating point support 512 KB flash, 192 KB RAM
- Native USB that can act as a true USB MIDI device if you like. 8 MB SPI FLASH chip for storing files and CircuitPython code storage.
- 4 x 8 elastomer pads with fully diode'd matrix - no ghosting! 4 x 8 neopixels for each pad, glows through the elastomer buttons.
- TRRS Headphone jack with stereo DAC outputs on Left/Right, can also be stereo ADC inputs. Fourth pin on headphone for electret/ADC input built in MAX4466 electret mic amplifier for mobile phone headsets. 'Raw' DC level reading also available on a separate ADC
- 4-JST hacking port with 3.3V power, ground, and two GPIO that can be I2C/ADC/UART Analog Devices ADXL343 triple-axis accelerometer Really fun to press buttons and have sounds come out!
| Brand: | Adafruit |
|---|---|
| Manufacturer: | Adafruit |
| Part Number: | RWN4GP6 |
| Isin: | I1UZ4UUJQ3NT |
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We got a big ol' blender and tossed in an ItsyBitsy M4, two NeoTrellis boards and an electret mic amp - turned on the 'mix' button and out came the NeoTrellis M4 - a super fun dev board for anyone who likes to squish buttons, pretty see lights and maybe make a tune or two. The NeoTrellis M4 is an all-in-one USB + NeoPixel + Elastomer + Audio Board It is powered by our new favoritest-chip-in-the-world, the SAMD51, a Cortex M4 core running at 120MHz. This chip has a speedy core with CircuitPython and Arduino support, hardware DSP/floating point, dual DACs (more on that later!) And all the goodies you expect from normal chips like I2C, ADC, DMA, etc. It has a roomy 512KB of flash and 192KB of SRAM so it's great for CircuitPython, we added a full 8MB flash chip so tons of space for files and audio clips. Or you can load Arduino in for bonkers-fast audio processing/generation with our fork of the PJRC Audio library. The native USB port can turn it into a MIDI USB device if you like, in both Arduino and CircuitPython. Tether it to a computer or tablet, if you like. Or use it in standalone mode, as long as its powered from a USB power plug, it'll run whatever firmware is burned into it. OK so you've got this big brain, but now you need inputs and outputs! There is a 4x8 grid of elastomer button pads with a NeoPixel nestled in the center of each one. You can read any/all buttons simultaneously thanks to the fully diode'd matrix, and also set each button colour to any of 24-bit colours. (We've even got some DMA Arduino code for the NeoPixels so that they won't take up any processor time.) The elastomer buttons are translucent so they glow beautifully when lit. We picked the SAMD51 mostly because its got that dual DAC - that's two 12-bit, 500KSPS 'true analog' outputs and we connected them to left and right on a standard headphone jack.
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