2015年4月22日 星期三

Raspberry Pi 入門資料

缺省帐号和密码是root/root

The Raspberry Pi is a series of credit card-sized single-board computers developed in the UK by the Raspberry Pi Foundation with the intention of promoting the teaching of basic computer science in schools.
Rasberry Pi Model B+
Rasberry Pi 2 Model B

https://superpiboy.wordpress.com/2014/07/20/super-pi-boy-build/

https://sites.google.com/site/raspberypishare0918/home/gpio/model-b-40pin

http://www.element14.com/community/docs/DOC-73950/l/raspberry-pi-2-model-b-gpio-40-pin-block-pinout


raspberry pi schematic




Arduino TRE 資料收集



官網 : http://www.arduino.cc/en/Main/ArduinoBoardTre






Arduino TRE, the first Arduino board manufactured in the U.S.

Thanks to the 1-GHz Sitara AM335x processor, Arduino developers get up to 100 times more performance with the Sitara-processor-based TRE than they do on the Arduino Leonardo or Uno. This performance opens the doors to more advanced Linux-powered applications. The Sitara-processor-based Linux Arduino can run high-performance desktop applications, processing-intensive algorithms or high-speed communications.
The Arduino TRE is a Sitara-processor-based Linux Arduino plus a full AVR-based Arduino, while leveraging the simplicity of the Arduino software experience. The integration of the AVR Arduino enables the Arduino TRE to use the existing shield ecosystem so that innovators can expand the Arduino TRE to develop a wide range of high-performance applications such as 3D printers, gateways for building automation and lighting automation, telemetry hubs that collect data from nearby sensors wirelessly, and other connected applications that require host control plus real-time operations.
Technical Specifications (preliminary)
MicrocontrollerAtmel ATmega32u4
Clock Speed16 MHz
Flash Memory32 KB (ATmega32u4)
SRAM2.5 KB (ATmega32u4)
EEPROM1 KB (ATmega32u4)
Digital I/O Pins (5V logic)14
PWM Channels (5V logic)7
Analog Input Channels6 (plus 6 multiplexed on 6 digital pins)
ProcessorTexas Instrument Sitara AM3359AZCZ100 (ARM Cortex-A8)
Clock SpeedGHz
SRAMDDR3L 512 MB RAM
NetworkingEthernet 10/100
USB port1 USB 2.0 device port, 4 USB 2.0 host ports
VideoHDMI (1920x1080)
AudioHDMI, stereo analog audio input and output
Digital I/O Pins (3.3V logic)23
PWM Channels (3.3V logic)4
MicroSD card
Support LCD expansion connector

Arduino Zero 資料收集



官網 : http://www.arduino.cc/en/Main/ArduinoBoardZero



The board is powered by Atmel’sSAMD21 MCU, which features a 32-bit ARM Cortex® M0+ core.
one of its most important feature is Atmel’s Embedded Debugger (EDBG), which provides a full debug interface without the need for additional hardware, significantly increasing the ease-of-use for software debugging. EDBG also supports a virtual COM port that can be used for device programming and traditional Arduino boot loader functionality.

Summary
MicrocontrollerATSAMD21G18, 48pins LQFP
Operating Voltage3.3V
Digital I/O Pins14, with 12 PWM and UART 
Analog Input Pins6, 12-bit ADC channels
Analog Output Pins1, 10-bit DAC
DC Current per I/O Pin7 mA
Flash Memory256 KB
SRAM32 KB
EEPROMup to 16KB by emulation
Clock Speed48 MHz