Фев 212011


The Arduino Uno is a microcontroller board based on the ATmega328 (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.

The Uno differs from all preceding boards in that it does not use the FTDI USB-to-serial driver chip. Instead, it features the Atmega8U2 programmed as a USB-to-serial converter.

“Uno” means one in Italian and is named to mark the upcoming release of Arduino 1.0. The Uno and version 1.0 will be the reference versions of Arduino, moving forward. The Uno is the latest in a series of USB Arduino boards, and the reference model for the Arduino platform; for a comparison with previous versions, see the index of Arduino boards.

Microcontroller ATmega328
Operating Voltage 5V
Input Voltage (recommended) 7-12V
Input Voltage (limits) 6-20V
Digital I/O Pins 14 (of which 6 provide PWM output)
Analog Input Pins 6
DC Current per I/O Pin 40 mA
DC Current for 3.3V Pin 50 mA
Flash Memory 32 KB (ATmega328) of which 0.5 KB used by bootloader
SRAM 2 KB (ATmega328)
EEPROM 1 KB (ATmega328)
Clock Speed 16 MHz

Schematic & Reference Design

EAGLE files: arduino-uno-reference-design.zip

Schematic: arduino-uno-schematic.pdf


 Posted by at 10:20
Фев 192011
GPS Module – EM-406A
New improved GPS Module with built-in antenna and memory back-up for OEM and hobbyists projects. This unit features low power consumption, high sensitivity. The unit is ideal for navigation systems, distance measurements, vehicle monitoring and recording, boating direction and location, together with hiking and cross country exploring.This module includes high precision surface mount technology to provide both high accuracy and very compact size. The module can be easily installed on a main board, with all inputs using standard TTL signal levels. A series of standard NMEA format messages are provided to give position, satellite information, time, etc. The module can be easily connected directly to a microcontroller to display and record this information.Develop your own GPS navigation system or connect to a pocket pc for a low cost navigation system. Use in the car or boat for trip recording and distance to destination information. The possibilities are endless with this easy to use GPS module.
Part Code: GPS_EM-406A

  • SiRF Star III high performance GPS Chipset
  • Very high sensitivity (Tracking Sensitivity: -159dBm)
  • Extremely fast TTFF (Tiem To First Fix) at low signal level
  • Supports NMEA 0183 data protocol
  • Built-in SuperCap to save system data for rapid satellite acquisition
  • Built-in patch antenna
  • Acquisition Time, cold start 42 seconds
  • Includes Connecting Cable
  • Power Supply – 5Vdc
  • TTL Level Output Voltage 0 – 2.85V
  • Dimensions: Length – 30mm , Width – 30mm, Height – 10mm

Technical Data

Фев 192011

EM2440-III [WITH 3.5 LCD &TS] – одноплатный компьютер с дисплеем TFT LCD 3,5″ на базе модуля MINI2440 с установленным процессоромSamsung ARM9 S3C2440A.

Ядро процессора ARM920T работает на тактовой частоте 400 МГц. На модуле MINI2440установлено 64 МБ ОЗУ (SDRAM), 64 МБ NANDFlash и 2 МБ NOR Flash. По желанию клиента память может быть увеличена до 128 МБ1 ГБ и 8 МБ соответственно.

EM2440-III позволяет загрузить на модуль ОС Windows CE 6.0 или Linux 2.6.30. На плате-носителе интегрированы все необходимые интерфейсы – EthernetUSB Host & Device, интерфейс для подключения камеры, последовательные порты, аудиоинтерфейс, интерфейс для подключения LCD, клавиатуры, разъем для карт памяти SD/MMC, пользовательские кнопки и светодиоды.

К EM2440-III можно подключить модули расширения GPS,GPRS,CDMA, WIFI, AV,VGA.

Отличительные особенности:

  • процессор:
    – S3C2440A с тактовой частотой 400 МГц,
    – ядро процессора ARM920T;
  • память:
    – 64 МБ ОЗУ (SDRAM),
    – 64 МБ NAND Flash,
    – 2 МБ NOR Flash;
  • 3 последовательных порта RS-232;
  • дисплей TFT LCD 3,5″;
  • Ethernet 10/100 Davicom DM9000A MAC & PHY;
  • USB Host/Device 12 Мбит/с;
  • 20-выводный разъем для подключения камеры;
  • JTAG;
  • возможность подключения мышки и клавиатуры;
  • аудиокодек UDA1341;
  • RTC, PWM;
  • пользовательские кнопки и светодиоды;
  • размеры платы: 105х128 мм.

Комплектация: одноплатный компьютер EM2440-III, диск с ПО, комплект кабелей.

Техническая документация и программное обеспечение:

 Posted by at 19:35