TinyZero Processor Board  ASM2021-R
  • TinyZero Processor Board  ASM2021-R
  • TinyZero Processor Board  ASM2021-R
  • TinyZero Processor Board  ASM2021-R

TinyZero Processor Board ASM2021-R


TinyZero is TinyCircuits' second generation processor board, adding performance upgrades and additional features to the original TinyDuino.  TinyZero is based on the Atmel SAMD21 32-bit ARM Cortex M0+ processor (the same one used in the Arduino Zero) and provides a USB connectivity port, power management and battery charger in a single 20x20mm board.  This processor board also has an optional accelerometer version, which adds the low power Bosch BMA250 3-axis accelerometer to the same board without increasing the size.  We've kept our standard TinyShield expansion port, allowing for use of all of our current shields, and all 20 IO pins are available for use. Note: The battery is not included and is sold separately. 


  • Atmel ATSAMD21G18A 32 bit ARM processor at 48MHz, Arduino Zero compatible
  • 32.728KHz clock crystal, RTC hardware built in with standby mode down to 0.2mA
  • Expandable with our full lineup of stackable TinyShield boards
  • Ultra compact size and weight (smaller than a US Quarter!)
    •  20mm x 20mm (.787 inches x .787 inches)
    • Max Height: 2.9mm (0.12 inches)
    • Ultra-thin 0.61mm (0.024 inches) PCB
    • Weight: 1.40 grams (0.049 ounces)
  • Atmel 32-bit ATSAMD21G18A ARM Microcontroller
    • ARM Cortex M0
    • 256KB Flash, 32KB SRAM
    • 12-bit ADC, 10-bit DAC
    • Default Clock speed: 48MHz
  • Bosch BMA250 Accelerometer Specs (optional)
    • 3-axis (X, Y, & Z)
    • Digital resolution: 10bit
    • Measurement ranges: +-2g, +-4g, +-8g, +-16g
    • Bandwidths: 1000Hz to 8Hz
    • Low Power: 130uA @1kHz data rate
  • 2.7V – 5.5V operating voltage with built in 3.3V regulator
  • 20 IO pins available- up to 10 ADC inputs or up to 10 PWM outputs
  • Arduino compatible bootloader with CDC Serial port, plug and play on OSX and Windows 10
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