Order No.: crumb328-2.3
Availability: out of stock

Price:  12.90 EUR

incl. VAT excl. shipping

Crystal Frequency

Preload Bootloader  

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Atmel AVR ATmega328 microcontroller module with USB UART.

Crumb328 V2.2 AVR ATmega Module

Crumb328 V2.3 - Atmel AVR ATmega328 microcontroller module with USB UART.


Crumb328 V2.3 is a versatile and very compact/small (just 35x18mm size!) microcontroller module with the ATmega328P microcontroller and CP2102 USB UART converter. All microcontroller signals are available on pin headers. A selectable XTAL crystal is included.

The module is shipped without preassembled pin headers, since everybody has different preferences or requirements. A Connector Kit with a suitable set of pin headers and receptacles can be ordered optionally.

You can find further information in the Infosheet.

Technical Details

  • ATmega328 (32k Flash, 2k SRAM, 512b EEPROM)
  • Interfaces: 1xUSART, SPI, I2C/TWI, 23x IO Pins
  • Peripherals: 2x 8 Bit / 1x 16 Bit Timer mit PWM/Capture/Compare, 8ch. 10 Bit ADC, Analog Comparator, Watchdog, Brownout, Sleep/Powerdown Mode
  • 6-Pin ISP interface with standard pinout
  • CP2102 USB UART converter at USART0
  • selctable XTAL crystal frequency
  • Connectors: 2x 14-pin with all processor signals, 1x 6-pin ISP, mini USB-B (5-pin)
  • 2.54mm (1/10inch) pin grid
  • Size: 35.56mm x 17.78mm


  • Infosheet
  • Schematic Diagram
  • ATmega328 Datasheet
  • Atmel Studio 7 (incl. Toolchain + Software Framework)
  • CodeVisionAVR C Compiler
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