This breakout board is a "three in one" product:
  1. The ATtiny1616 is part of the 'next gen' of AVR microcontrollers, and now we have a cute development/breakout board for it, with just enough hardware to get the chip up and running.
  2. It's also an Adafruit seesaw board. Adafruit seesaw is a near-universal converter framework which allows you to add and extend hardware support to any I2C-capable microcontroller or microcomputer. Instead of getting separate I2C GPIO expanders, ADCs, PWM drivers, etc, seesaw can be configured to give a wide range of capabilities.
  3. Finally, with STEMMA QT connectors on it, you could use it as either an I2C controller or peripheral with plug-and play support.
We primarily designed this board for our own use: it's a mini dev board that lets us design with the ATtiny1616 just like we did for the ATSAMD09. With the 2021-2022 silicon shortage, we're adapting some of our SAMD09 designs to the ATTiny8xx series and wanted a quick minimal board to test code on.
Each breakout comes with the assembled and tested board, as well as some header strips. Each PCB is fairly minimal and contains:
  • ATtiny1616 8-bit microcontroller:
  • 16KB flash, 2KB of RAM, 256 bytes of EEPROM
  • Internal oscillator can run up to 20MHz
  • Internal hardware multiplier
  • Can run from 2V to 5V power/logic (check the datasheet for max speed at desired power)
  • 3.3V regulator - by default we run at the Vin voltage, which can be 5V, but there's a solder jumper on the bottom if you'd like to select 3V logic.
  • Green power LED
  • Red indicator LED
  • Two STEMMA QT I2C connectors with 10K pullup resistors, connected to pins 8 and 9
This board comes pre-programmed with seesaw peripheral code that will let it act as an "I2C to something" converter, basically a little I2C-controlled friend to do all the timing-sensitive things many microcontrollers and microcomputers are not good at.
For example, using this breakout with the pre-burned seesaw firmware gives you
  • 12 x GPIO with selectable pullup resistors: 0-5, 6, 8, 11, 14, 15, 16
  • 9 x 10-bit ADC inputs - pins 0, 1, 2, 3, 4, 5, 14, 15, 16
  • 5 x 8-bit PWM outputs - pins 0, 1, 7, 11, 16
  • 1 x NeoPixel output (up to 250 pixels)
  • 1 x EEPROM with 127 byte of NVM memory (handy for storing small access tokens or MAC addresses) - last byte of EEPROM is used for I2C address selection
  • 1 x Interrupt output that can be triggered by any of the accessories - pin 6
  • 2 x I2C address selection pins - pins 12 and 13
  • 1 x Activity LED on pin 10, tied active low
Of course, you can configure or reprogram the chip to however you want to use it - we like using SpenceKonde's megaTinyCore which brings Arduino peripheral support to this series of chips. To program the chip you will need a 'UPDI' programmer, which you can make with a USB-to-Serial cable and a single 4.7K or 10K resistor.
Please note: The boards do not come with a bootloader. If you want to do development on seesaw (e.g. changing the configuration) you need a separate UPDI programming setup! The firmware we put on is available as this example sketch, compiled using the megaTinyCore. We don't provide any support for custom builds of seesaw - we think this is cool and useful for the Maker community!
Package Includes:
  • 1 x Adafruit 5690 ATtiny1616 Breakout with seesaw - STEMMA QT / Qwiic

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Adafruit 5690 ATtiny1616 Breakout with seesaw - STEMMA QT / Qwiic

  • Brand: Adafruit
  • Product Code:Ada-5690-ATtiny1616-Breakout-seesaw
  • Reward Points:6
  • Availability:In Stock
  • रo 534.00

  • Price in reward points:564

  • 45 or more रo 468.00
  • 290 or more रo 466.00

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Tags: Adafruit, ATtiny, Breakout, seesaw, STEMMA QT

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