AVR ATmega128 USB RS485 Module Board - Crumb128 V4.0

Description:

Crumb128 V4.0 is a versatile and very compact/small (just 40x30mm size!) microcontroller module with the ATmega128 microcontroller, CP2102 USB UART converter and RS485 transceiver. All microcontroller signals are available on pin headers. A selectable XTAL crystal is included.

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.

Further information:

• Infosheet
• Schaltplan

On our Download Page you can find datasheets, drivers, links to external tools, etc.

Technical Details:

• ATmega128 (128k Flash, 4k SRAM, 4k EEPROM)
• Interfaces: 2xUSART, SPI, I2C/TWI, 53x IO Pins
• Peripherals: 2x 8 Bit / 2x 16 Bit Timer with PWM/Capture/Compare, 8ch. 10 Bit ADC, Analog Comparator, RTC Timer, Watchdog, Brownout, Sleep/Powerdown Modes
• 6-Pin ISP Interface with standard pinout, JTAG
• CP2102 USB UART converter at USART0
• 75ALS176 RS485 transceiver at USART1
• selectable XTAL crystal frequency, 32kHz TOSC watch crystal preassembled
• Connectors: 2x 32-pin with all processor signals, 1x 8pin with USB and RS485 signals, 1x 6-pin ISP, mini USB-B (5-pin)
• 2.54mm (1/10inch) pin grid
• Size: 40.64mm x 30.48mm