Дек 222011

WT21 is intended at Bluetooth applications where a host processor is capable of running the Bluetooth software stack. WT21 only implements the low level Bluetooth Host Controller Interface (HCI) but still offers advantages of a module — easy implementation and certifications.

Key Features:

  • Highly integrated and cost effective Bluetooth HCI module
  • Bluetooth class 1 radio based on CSR’s BlueCore-6
  • Transmit power 6dBm, receiver sensitivity -87dB
  • Integrated antenna or RF pin
  • Small size: 17,1 x 11,6 x 2,6mm
  • Bluetooth 2.1 + EDR Compliant
  • Bluetooth controller subsystem CE, FCC and IC qualified
  • Industrial temperature range from -40C to +85C
  • 801.11 co-existence interface
  • AuriStream baseband codec, which provides better audio quality
  • Supports any Bluetooth stack with HCI interface


WT21 is intendend for Bluetooth applications where a host processor is capable of running the Bluetooth software stack. WT21 only implements the low level Bluetooth Host Controller Interface (HCI) but still offers advantages of a module- easy implementation and certifications. WT21 is based on CSR’s BlueCore-6 chip and offers the lowest current consumption and the highest integration level in its class. WT21 supports Bluetooth 2.1 + EDR standard. It also has AudiStream technology built in, which significantly improves the quality of voicein audio applications.

WT21 supports any Bluetooth software stack that implements the standard Bluetooth HCI interface. The software stack can interface to the module either via UART, SDIO or SPI interface. WT21 offers Bluetooth
in integrated form factor that is easy to understand, manage and source. It is an ideal product for an OEM who does not want to spend significant amount of time and money to RF regulatory approvals and designing a complex 2,4 GHz radio product. By utilizing Bluegiga’s world-class integration services and technical support, OEMs can beassured that their products reach the market quickly and cost efficiently.


 Posted by at 20:53
Дек 222011

  •  Bluetooth protocal:  Bluetooth Specification v2.0+EDR
  •  Frequency:  2.4GHz ISM band
  •  Modulation:  GFSK(Gaussian Frequency Shift Keying)
  •  Emission power:  ≤4dBm, Class 2
  •  Sensitivity:  ≤-84dBm at 0.1% BER
  •  Speed: Asynchronous:  2.1Mbps(Max) / 160 kbps, Synchronous: 1Mbps/1Mbps
  •  Security:  Authentication and encryption
  •  Profiles:  Bluetooth serial port
Power supply: +3.3VDC 50mA
Working temperature: -20 ~ +75 Centigrade
Dimension: 26.9mm x 13mm x 2.2 mm
[wpfilebase tag=file id=1 /]
Bluetooth-модуль HC-05
 Posted by at 20:47
Дек 222011

Модуль работает как Com порт, используя RX/TX, обеспечивает скорости от 2400 до 115200bps. Оттестирован на передаче данных примерно на 10(35ft) метров. Построен на широко известном bluetooth модуле RN-42 class 2, очень простого в использовании и конфигурированнии и имеющий отличную документацию. Bluetooth Напарник включает в себя регулятор напряжения, поэтому его можно питать от 3.3 до 6VDC. Но к Com порту его напрямую подключать нельзя, нужен TTL преобразователь уровня.


  • Спроектирован для работы с Arduino Pro’s и LilyPad
  • FCC Approved Class 2 Bluetooth Radio Modem
  • Поддерживает передачу на растояние около 10 метров
  • Низкое потребление: 25mA avg
  • Сложна система смены частот — организуемая аппаратным RF как в WiFi, 802.11g, и Zigbee
  • Криптозащита канала
  • Частота: 2.4~2.524 GHz
  • Рабочее напряжение: 3.3V-6V
  • Скорость порта: 2400-115200bps
  • Рабочая температура: -40 ~ +70C
  • Встроенная антенна


  • Плата: 1.75×0.65″


Дек 222011


  • The module is a Max.4dBm( Class2 ) module.
  • Bluetooth standard Ver. 2.0 + EDR conformity.
  • Internal 1.8V regulator
  • Low current consumption : Hold,Sniff,Park,Deep sleep Mode
  • 3.0v to 3.6v operation
  • Support for up to seven slaves : SCO links,ACL links,Piconet
  • Interface: USB,UART&PCM(for voice CODEC)
  • SPP firmware with AT command sets
  • Small outline. 25 x 14.5 x 2.2 mm


  • Notebook PC
  • PDA
  • Digital camera & printer
  • GPS,POS, Barcode Reader
  • Domestic and industrial applications


 Posted by at 20:27
Ноя 142011

Key Features

  • Worldwide 2.4GHz ISM band operation
  • Up to 2Mbps on air data rate
  • Ultra low power operation
  • 11.3mA TX at 0dBm output power
  • 12.3mA RX at 2Mbps air data rate
  • 900nA in power down
  • 22μA in standby-I
  • On chip voltage regulator
  • 1.9 to 3.6V supply range
  • Enhanced ShockBurstTM
  • Automatic packet handling
  • Auto packet transaction handling
  • 6 data pipe MultiCeiverTM
  • Air compatible with nRF2401A, 02, E1 and E2
  • Low cost BOM
  • ±60ppm 16MHz crystal
  • 5V tolerant inputs
  • Compact 20-pin 4x4mm QFN package


  • Wireless PC Peripherals
  • Mouse, keyboards and remotes
  • 3-in-one desktop bundles
  • Advanced Media center remote controls
  • VoIP headsets
  • Game controllers
  • Sports watches and sensors
  • RF remote controls for consumer electronics
  • Home and commercial automation
  • Ultra low power sensor networks
  • Active RFID
  • Asset tracing systems
  • Toys
Ноя 132011

Микроконтроллер STM32L152RBT6  Ядро Cortex-M3, 128 KB Flash, 16 KB RAM, 4 KB EEPROM

Интерфейсы USB 2.0 FS, 3xUSART, 2xSPI, 2xI2C, 8 таймеров
24-канальный 12-бит АЦП 1мкс, компараторы, 2х12-бит ЦАП
Полноценные часы реального времени
Встроенный контроллер LCD 8х40
Программатор отладчик ST-Link с возможностью программировать другие STM32.
LCD дисплей 24х8 в форм-факторе DIP28
Возможность измерения потребляемого тока
Четыре светодиода:
LD1 (красный/зеленый) для сигнализации обмена данных по USB
LD2 (красный) для питания 3.3В
Два пользовательских диода LD3 (зеленый) и LD4 (синий)
Две кнопки (user и reset)
Сенсорная клавиатура (четыре сенсорных кнопки или один слайдер)
Выводы STM32L152RBT6 выведены на контакты — можно использовать на беспаячной макетной плате

Руководство, примеры программного обеспечения, документация (English)

Ноя 122011


  • „Frequency Range = 240–930 MHz „
  • Configurable packet structure
  • „Preamble detector
  • TX and RX 64 byte FIFOs
  • „Low battery detector
  • Temperature sensor and 8-bit ADC
  • „–40 to +85 °C temperature range
  • „Integrated voltage regulators
  • „Frequency hopping capability
  • „FSK, GFSK, and OOK modulation
  • „Power-on-reset (POR)
  • „Sensitivity = –118 dBm
  • +13 dBm Max Output Power
  • Configurable –8 to +13 dBm
  • Low Power Consumption
  • 18.5 mA receive
  • 28 mA @ +13 dBm transmit
  • Data Rate = 1 to 128 kbps
  • Power Supply = 1.8 to 3.6 V
  • Ultra low power shutdown mode
  • Digital RSSI
  • Wake-on-radio
  • Auto-frequency calibration (AFC)
 Posted by at 21:12
Ноя 092011

  • High output power with 500mW
  • Automatic frequency control (AFC)
  • High input sensitivity with -117dBm
  •  Low costing, high performance and price ratio
  • PLL and zero IF technology
  • Fast PLL lock time
  • High resolution PLL with 2.5 KHz step
  • High data rate (up to 115.2 kbps with internal
  • demodulator,with external RC filter highest data rate is 256 kbps)
  • 50 OHM antenna input/output
  • Programmable TX power
  • Data quality detection (DQD)
  • Internal data filtering and clock recovery
  • RX synchron pattern recognition
  • SPI compatible serial control interface
  • Clock and reset signal output for external MCU use
  • 16 bit RX Data FIFO
  • Two 8 bit TX data registers
  • Wakeup timer
  • 2.2V – 3.8V power supply for FSK IC, 12V power
  • Programmable TX frequency deviation (from 15 supply for power amplifier to 240 KHz)
  • Programmable receiver bandwidth (from 67 to 400 kHz)
  • Standby current less than 0.3uA
  • Supports very short packets (down to 3 bytes)
  • Analog and digital signal strength indicator (ARSSI/DRSSI)

 Posted by at 22:57
Окт 312011


The Keil MCB1700 Evaluation Boards enable you to create and test working programs based on the NXP LPC1700 family of ARM Cortex™-M3 processor-based devices.

The MCB1700 Evaluation Board is available in two different configurations:

  • The MCB1750 Evalution Board is populated with an NXP LPC1758 device
  • The MCB1760 Evaluation Board is populated with a NXP LPC1768 device


  • 100MHz ARM Cortex-M3 processor-based MCU
  • On-Chip Memory: 512KB Flash and 64KB RAM
  • Color QVGA TFT LCD
  • 10/100 Ethernet Port
  • USB 2.0 Full Speed — USB, USB-OTG, and USB Host
  • 2 CAN interfaces
  • 2 Serial Ports
  • SD/MMC Card Interface
  • 5-position Joystick and push-button
  • Analog Voltage Control for ACD Input
  • Amplifier and Speaker
  • Up to 70 GPIO
  • Debug Interface Connectors
    • 20-pin JTAG (0.1 inch connector)
    • 10-pin Cortex debug (0.05 inch connector)
    • 20-pin Cortex debug + ETM Trace (0.05 inch connector)

Bootloading a custom LPC1768 PCB using your mbed!

 Posted by at 22:22