Order No.: crumb32u4-1.0
Availability: on stock

Price:  24.95 EUR

incl. VAT excl. shipping

Crystal Frequency

Headers/Receptacles

Pcs.

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Atmel AVR ATmega32U4 microcontroller module with USB 2.0 controller.

Crumb32U4 V1.0 with USB 2.0 Controller

Crumb32U4 V1.0 - Atmel AVR ATmega32U4 microcontroller module with USB 2.0 controller.

Description

Crumb32U4 V1.0 is a versatile and very compact/small (just 41x18mm size!) microcontroller module with the ATmega32U4 microcontroller with integrated USB 2.0 full-speed/low-speed device module. All microcontroller signals are available on pin headers. A selectable XTAL crystal is included.

Preloaded Firmware:

The module will be shipped with a USB HID keyboard sample application. Open a text editor, connect the module to USB (it will be recognized as USB keyboard and does not require any additional USB drivers) and see the text message coming from the module in the text editor! The example is based on the latest version of the LUFA Leight Weight USB Framework for AVR and is available for download here.

Scope of Delivery:

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

You can find further information in the Infosheet.


Technical Details

  • ATmega32U4 (32k Flash, 2.5k SRAM, 1k EEPROM)
  • Interfaces: 1xUSART, SPI, I2C/TWI, 26x IO Pins
  • Peripherals: 1x 8 Bit / 2x 16 Bit / 1x 10 Bit (64MHz High Speed) Timer with PWM/Capture/Compare, 12ch. 10 Bit ADC, Analog Comparator, Watchdog, Brownout, Sleep/Powerdown Mode
  • 6-Pin ISP Interface with standard pinout
  • selectable XTAL crystal frequency
  • Connectors: 2x 16-pin with all processor signals, 1x 6-pin ISP, mini USB-B (5-pin)
  • 2.54mm (1/10inch) pin grid
  • Size: 40.64mm x 17.78mm

Downloads

  • Infosheet
  • Schematic Diagram
  • ATmega16U4/32U4 Datasheet
  • LUFA based Sample Source Code
  • Atmel AVR-Studio (incl. Toolchain + Software Framework)
  • CodeVisionAVR C Compiler
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