Digi Connect® Wi-ME
- Interfaz de red inalámbrica 802.11b
- 2 interfaces serie TTL de alta velocidad
- 4 MB de memoria Flash, 8 MB de RAM
- Homologación para radio en Norteamérica, la Unión Europea y Japón
El Digi Connect Wi-ME es un módulo integrado inalámbrico 802.11b, seguro y completamente adaptable. El módulo integrado Digi Connect Wi-ME tiene pines compatibles con el Digi Connect® ME, y posibilita la integración totalmente transparente con 802.11b sin las complejidades tradicionales de los proyectos de integración de hardware y software.
Está inspirado en el diseño de plataforma común de la familia Digi Connect® de productos integrados, que minimiza el riesgo del diseño y reduce el tiempo de instalación, ya que los clientes podrán incorporar fácilmente tanto funciones cableadas como inalámbricas en un solo diseño de producto preparado para el futuro.
El módulo integrado Digi Connect Wi-ME, que incorpora la avanzada tecnología NetSilicon NET+ARM de 32 bits, brinda un método de migración a una solución completamente integrada de sistema en un chip NetSilicon. Combina auténticas funciones “Plug and Play” con la libertad y flexibilidad que suponen las opciones de adaptación total de software, gracias a la sólida plataforma de desarrollo NET+OS®
Saber más
| Digi JumpStart Kits | Norteamérica: | Resto del mundo: | |
 Digi Connect Wi-ME Digi JumpStart Kit for NET+OS 7 w/Eclipse-based Digi ESP IDE, USB debugger, installation and setup support package Más información |
DC-WME-NET |
DC-WME-NET |
 Contactar |
| Integration Kits | Norteamérica: | Resto del mundo: | |
 Digi Connect Wi-ME Integration Kit - Includes module w/plug-and-play firmware, antenna, development board, documentation, Integration CD, cables and power supply Más información |
DC-WME-KT |
DC-WME-KT |
Contactar |
| Modules with Plug-and-Play Firmware | Norteamérica: | Resto del mundo: | |
| Digi Connect Wi-ME (single-unit pack with antenna) Más información |
DC-WME-01T-S |
DC-WME-01T-S |
Contactar |
| Modules for NET+OS | Norteamérica: | Resto del mundo: | |
| Digi Connect Wi-ME (single-unit pack with antenna) Más información |
DC-WME-01T-C |
DC-WME-01T-C |
Contactar |
| Specifications | Digi Connect ME® | Digi Connect® Wi-ME |
| Hardware | ||
| Processor Type | 32-bit Digi NS7520 processor | |
| ARM Core | ARM7TDMI | |
| Processor Speed | 55 MHz | |
| Memory Base Population | 2/4 MB NOR flash | 4 MB NOR flash |
| 8 MB SDRAM | ||
| Pins/Form Factor | RJ-45 connector style with 20-pin micro pin header (Samtec FTS-110-01-F-DV-TR) | |
| High-Speed TTL Serial Interface | Up to 230 Kbps data rate Full signal support for TXD, RXD, RTS, CTS, DTR, DSR and DCD Hardware/Software flow control |
|
| GPIO | Up to 10 shared with 1 external IRQ | |
| On-module Power Supervisor | • | |
| JTAG Interface | NET+OS development modules only (P/N DC-ME-01T-JT, DC-ME4-01T-JT) | |
| Wave-Solderable Design | No clean flux process | |
| Dimensions (L x W x H) | 1.445 in (36.7 mm) x 0.75 in (19.05 mm) x 0.854 in (21.69 mm) | 1.845 in (46.86 mm) x 0.75 in (19.05 mm) x 0.854 in (21.69 mm) |
| Network Interface - Wired | ||
| Standard | IEEE 802.3 | — |
| Physical Layer | 10/100Base-T | — |
| Data Rate | 10/100 Mbps (auto-sensing) | — |
| Mode | Full- or half-duplex (auto-sensing) | — |
| Connector | RJ-45 | — |
| Integrated Ethernet MAC/PHY | • | — |
| PoE Power Pass-Through | • | — |
| Network Interface – Wireless LAN | ||
| Standard | — | IEEE 802.11b |
| Frequency | — | 2.4 GHz |
| Data Rate | — | Up to 11 Mbps with automatic fallback |
| Modulation | — | CCK (11/5.5 Mbps), DQPSK (2 Mbps), DBPSK (1 Mbps) |
| Typical Transmit Power | — | 16 dBm typical |
| Receive Sensitivity | — | -66 dBm @ 11 Mbps |
| Connector | — | 1 x RP-SMA |
| WLAN Security | ||
| WEP (Wired Equivalent Privacy) | — | 64/128-bit encryption (RC4) |
| WPA/WPA2/802.11i | — | 128-bit TKIP/CCMP (AES) encryption Enterprise mode (802.1X): LEAP (WEP only), PEAP, TTLS, TLS; EAP-FAST, GTC, MD5, OTP, PAP, CHAP, MSCHAP, MSCHAPv2, TTLS-MSCHAPv2 Pre-shared key mode (PSK/Personal) |
| Environmental | ||
| Operating Temperature | -40° C to +85° C (-40° F to +185° F) | -30° C to +75° C (-22° F to +167° F) |
| Storage Temperature | -50° C to +125° C (-58° F to +257° F) | |
| Relative Humidity | 5% to 90% (non-condensing) | |
| Altitude | 12,000 feet (3,658 meters) | |
| Power Requirements (3.3V) | ||
| Maximum | 270 mA (891 mW) | 400 mA (1.32 W) |
| Regulatory Approvals | ||
| FCC Part 15 Class B, EN 55022 Class B | • | |
| EN 61000-3-2 and EN 61000-3-3 | • | |
| ICES-003 Class B, VCCI Class II, AS 3548 | • | |
| FCC Part 15 Sub C Section 15.247 | • | |
| IC RSS-210 Issue 5 Section 6.2.2(o) | • | |
| EN 300 328, EN 301 489-17 | • | |
| UL 60950-1, EN 60950 (EU) | • | |
| CSA C22.2, No. 60950 | • | |
| EN 55024 | • | |
Digi Connect Wi-ME - Front
Digi Connect Wi-ME - Bottom
Hardware
Software
Feature Specs
Support Documentation
Users Manuals
Application Notes
Technical Notes
- Government Agency Certification
- Connect Wi-ME EU DoC
- Digi Connect ME & Digi Connect Wi-ME Hardware Reference (Archived)
- Digi Connect ME®, Digi Connect® Wi-ME and Digi Connect ME® 9210 Hardware Reference
- DIGI WIFI GUIDE
- NS7520 Hardware Reference
Schematics
- Digi Connect ME (9210) Development Board BOM
- Digi Connect ME (9210) development board schematics (08/26/09)
- Schematics for ME/Wi-ME Development board (Archived)
- STEP cad file
Users Manuals
Quick Start Guides
Application Notes
Technical Notes
Overview
This sample application demonstrates how to create a fully web-enabled and intelligent weather data collection solution. It is built on a Digi Connect ME® embedded module that is connected to a basic and cost-effective weather instrument equipped with a temperature sensor to measure the current temperature and a cup anemometer with integrated wind vane to determine wind speed and direction. The weather instrument is mounted on the roof of the Digi corporate headquarters in Minnetonka, MN, USA.
Click the link below to access live weather information through your web browser.
Digi Connect ME weather station live demo
You can also obtain read-only access to the administration pages of the demo by logging in as user "demo" with password "demo".
The number of users that are allowed to access the live demo at the same time is limited. If you should not be able to view the demo at this time, please try again later.
Design and Implementation
The custom embedded NET+OS application running on the Digi Connect ME/Wi-ME module was created using the Digi JumpStart Kit for NET+OS and collects environmental data through the weather instrument's 1-Wire® interface. The information is then made available to web browsers by an integrated web server, which also allows the launch of a custom Java applet to visualize the data through a graphical user interface. The Java applet receives the weather data updates through a simple protocol that is based on standard UDP communication.
As the diagram above shows, the 1-Wire connection coming from the weather instrument is converted to RS-232 to feed directly to a standard Digi Connect ME/Wi-ME development board, which is used as a simple carrier board platform.
Further hardware integration is possible by designing a discrete solution with native 1-Wire interface components. The flexibility and simplicity of the 1-Wire bus also allows you to integrate additional inexpensive sensors, like barometric pressure, precipitation or humidity, without the need for external power supplies.
The embedded software and the Java applet can also be modified to offer additional functionality such as the logging and charting of historical data or the integration of additional sensor elements.
Developers Only
Please note that you need a Digi JumpStart Kit for NET+OS to compile the NET+OS portion of the application. Contact your local Digi sales office or distributor for information on how and where to purchase it.
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