Crumbuino-Mega
Arduino-compatible OEM module with ATmega2560 controller and CP2102 SB ART converter.
AVAILABLE OPTIONS
Module Processor RAM EEPROM Flash Peripherals
Crumbuino-Mega ATmega2560 8kB SRAM 4kB EEPROM 256kB Fla h - CP2102 USB-UART converter
- MAX3221 RS232 tran ceiver
- SN75ALS176 RS485 tran ceiver
- mini USB B 5pin connector
- tatu LED and tiny re et button
ARDUINO BOOTLOADER
The Crumbuino-Mega module come preloaded with
the Arduino ATmega2560 bootloader. Al o actived i
the auto-re et function, providing a eamle
integration to the Arduino IDE for uploading of a
program without the need to re et the module in
advance.
AUTO RESET FEATURE
Jumper J7 ( older-jumper on the bottom of the module
be ide the ISP header) enable the automatic re et of
the ATmega2560 by the Arduino IDE before connecting
the bootloader and upload a program.
USB INTERFACE
A USB UART converter CP2102 by Silab i connected to the MCU' USART0 RXD/PE0 and TXD/PE1. A
tandard 5pin mini USB B connector i available onboard and allow for ea y connection to a ho t PC. The
CP2102 i alway powered from USB bu .
FEATURES
Hi h Performance
–16MHz operating frequency
–ingle 5V power upply
Familiar Inte rated AVR Peripherals
–up to 83 IO pin available
–two 8 bit, four 16 bit timer/counter
–4 PWM channel (8 bit re olution)
–12 PWM channel (2 to 16 bit re olution)
–input capture and output compare function
–real time clock counter
–four programmable UART
–ma ter/ lave SPI interface
–two wire interface (I²C comp.)
–analog comparator
–16 channel 10 bit ADC
–watchdog timer
–ISP and JTAG interface
Enhanced Onboard Peripherals
–CP2102 USB to UART converter at USART0 (PE0,
PE1)
–MAX3221 RS232 tran ceiver at USART2 (PH0,
PH1)
–SN75ALS176 RS485 tran ceiver at USART3 (PJ0,
PJ1, PJ2)
–16MHz XTAL cry tal
–32768Hz clock cry tal prein talled
–tandard 6 pin Atmel AVR ISP connector
–tatu LED (connected to PJ7)
Expansion Headers
–tandard 2.54mm header with all controller ignal
and ignal from onboard peripheral
–auxiliary 3pin crew terminal (connected to RS485
ignal for direct cable connection, RS485 ignal
are al o available at pin header , ee below pinout)
ARDUINO IDE INTEGRATION
Due to the preloaded Arduino Bootloader and the integrated USB UART converter with mini-USB connector, the
module can directly be u ed with the Arduino IDE. The corre ponding board upport package (BSP) i available
here: http ://github.com/beegee-tokyo/Crumbuino-Chip45. Alternatively i can be u ed a Arduino Mega 2560
board, hence lacking ome GPIO ince the original Arduino Mega doe not expo e all ATmega2560 GPIO .
Crumbuino-Me a © chip45 GmbH & Co. KG • Am elweg 13 • 35435 Wettenberg • Germany • www.chip45.com Better Embedded.
