- Description
Details
UART WiFi Module, industrial high performance, with shield case, external antenna
Overview
WIFI232-B2 is a high performance UART WiFi module with shield case and external antenna. It is designed for occasions where large data flow is required and power consumption will not be a concern.
Features
- Easy to use: just like a simple UART module (AT commands provided)
- Start up time: 6s (most WiFi modules in the market require more than 6s to start up, even up to 30s)
- Power consumption: [email protected] (suit for non-battery applications)
- Shield case: protects the core circuit (usually no shielding for most other modules)
- Ideal hotspot: supports connecting plenty devices, supports route/bridge modes (router AP solution)
- TCPB function: supports 2x TCP, two network connections at the same time (rare feature in the market)
Functionality & Performance
- Solution: Marvell WiFi (router solution, hardware AP), ARM
- Wireless LAN protocols: IEEE 802.11 b/g/n
- WIFI security algorithms: WEP/WPA-PSK/WPA2-PSK
- Working modes: STA/AP/STA+AP (AP means WiFi hotspot, STA means terminal device)
- AP mode: up to 32 devices
- STA mode: server allows 32 connections
- AP+STA mode: AP allows 32 clients with route function
- Multi network protocols: TCP/UDP/ARP/ICMP/HTTP/DNS/DHCP
- Supports DHCP, to allocate IP automatically
- Supports AT+ instructions set and Web configuration
- Supports Transparent/Agreement transmission modes, 4K TCP cache, totally 1M cache
- Supports configuring UART framing delay and data volume
- Up to 460800bps baudrate, supports hardware flow
- Supports Ethernet data transmission, PWM output, GPIO control
- Firmware is upgradable via web
- Embedded PA, bi-transferring data on 57600 baudrate without packet loss, easily pass through three concrete walls
- Communication distance: (between two modules under open and wide environment)
- 280 metres with external 3DB antenna
- 200 metres with onboard antenna
- Supports factory reset: pull-down the Reload IO port for 3s, restore the module to its factory settings immediately
- Supports route/bridge network architectures (thanks to the router solution)
- Built-in watch dog and heartbeat mechanism to keep online
Software
- Test software for WINDOWS, iOS, Android
- Communication example source code for iOS, Android
Development Resources
Wiki : www.waveshare.com/wiki/WIFI232-B2
Selection Guide
| General Comparison | WIFI-LPT100-B | WIFI232-A2 | WIFI232-B2 |
|---|---|---|---|
| Suit for | low flow | high flow | high flow |
| AP mode connections | 3 | 32 | 32 |
| STA mode connections | 5 | 32 | 32 |
| AP+STA mode connections | 3 | 32 | 32 |
| Power consumption | ultra low | high | high |
| Interface | 2.0mm, 1x10 | 2.0mm, 2x7 | 2.0mm, 2x7 |
| Antenna | external | onboard | external |
| Shield case | × | √ | √ |
| Dimension (mm) | 22 x 13.5 | 25 x 40 | 25 x 40 |
| Specifications | WIFI-LPT100-B | WIFI232-A2 | WIFI232-B2 |
| WiFi chip | MTK single stream [email protected] | Marvell WiFi (router solution, hardware AP) | |
| Microcontroller | ARM | ||
| Wireless protocol | 802.11 b/g/n, 2.412GHz-2.484GHz | ||
| TX power | 802.11b: +18 +/-1dBm(@11Mbps，CCK) 802.11g: +17 +/-1dBm(@54Mbps，OFDM) 802.11n: +15 +/-1dBm(@HT20，MCS7) |
802.11b: +19dBm(Max.@11Mbps) 802.11g: +18dBm(Max.@54Mbps) 802.11n: +17dBm(Max.@HT20,MCS7) 802.11n: +17dBm(Max.@HT50,MCS7) |
|
| pass through one wall | pass through three concrete walls under 57600 baudrate, embedded PA, configurable power |
||
| RX sensitivity | 802.11b: -85 dBm(@11Mbps，CCK) 802.11g: -70 dBm(@54Mbps，OFDM) 802.11n: -68 dBm(@HT20，MCS7) |
802.11b: -89dBm (@11Mbps) 802.11g: -81dBm (@54Mbps) 802.11n: -73dBm (@HT20,MCS7) 802.11n: -71dBm (@HT40,MCS7) |
|
| Antenna | external 3DB antenna | onboard PCB antenna | external 3DB antenna |
| Communication distance (open environment) |
200 metres | 200 metres | 280 metres |
| UART | baudrate: 1200bps-460800bps | baudrate: 300bps-460800bps | |
| hardware flow: not supported | hardware flow: supported | ||
| framing delay and data volume configuration: supported | framing delay and data volume configuration: supported | ||
| transparent/agreement transmission: supported (1K cache) | transparent/agreement transmission: supported (4K TCP cache, totally 1M cache) | ||
| Other interfaces | - | Ethernet (100M), PWM, GPIO | |
| Connector | through hole: 1x10, 2.0mm pin headers | through hole: 2x7, 2.0mm pin headers | |
| Operating voltage | 3.0~3.6V | 3.3～3.6V | |
| Operating current | 32～285mA | 170～350 mA @ 3.3V | |
| Temperature | operating temperature: -40℃- 85℃, storage temperature: -45℃- 125℃ | ||
| Dimension | 22mmx13.5mmx9.2mm | 25mmx40mmx8mm | |
| AP mode | supported, up to 3 devices | supported, up to 32 devices | |
| STA mode | supported, server allows 5 connections | supported, server allows 32 connections | |
| AP+STA mode | supported, AP allows 3 clients | supported, AP allows 32 clients with route function | |
| Security algorithms | WEP/WPA-PSK/WPA2-PSK | ||
| Encryption | TKIP/AES | WEP64/WEP128/TKIP/AES | |
| Network protocol | TCP/UDP/HTTP | TCP/UDP/ARP/ICMP/DHCP/DNS/HTTP | |
| Misc | supports WPS | supports route/bridge modes | |
| Online mechanism | - | built-in watch dog and heartbeat mechanism to keep online | |
| Firmware upgrade | via web | ||
| User configuration | AT+ instructions set, web page | ||
| Android/iOS terminal, Simple Config/Airkiss auto config | Android/iOS terminal | ||
| Restore factory | pull-down the Reload IO port for 3s, no worries for faulty setting | ||
| Electrical certification | FCC/CE | ||
| Process standard | RoHS | ||
Weight: 0.057 kg
Quick Overview
- WIFI232-B2 x1
- External antenna x1
1+2
