Difference between revisions of "ITEAD8285"

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==Hardware==
 
==Hardware==
 
ITEAD8285 has many interfaces, supports UART, IIC, PWM, GPIO, ADC, etc., suitable for a variety of networking applications.
 
ITEAD8285 has many interfaces, supports UART, IIC, PWM, GPIO, ADC, etc., suitable for a variety of networking applications.
 
[[File:ITEAD8285_pinmap.jpg|500px]]
 
  
 
==Pin Definitions==
 
==Pin Definitions==

Revision as of 08:48, 7 July 2016

Overview

ITEAD8285.JPG

The ITEAD8285 is an ultra low-power Wi-Fi module designed by ITEAD. The module adopts the highly integrated Wi-Fi chip ESP8285. It features industry's highly competitive packaging size and ultra-low power technology. Specially designed for mobile devices and the Internet of Things application, it connects physical devices to Wi-Fi wireless network to make Internet or LAN communications.

ITEAD8285 has completed self-contained wireless network, with built-in 32-bit kernel processor, on-chip SRAM, it can be used as the main control chip, but also as a WiFi adapter. To apply it to other microcontroller-based designs, simply by using SPI/SDIO or I2C/UART interface communication.

The module supports IPEX connector and stamp hole interface. It can be widely apply for smart power grid, smart transportation, smart home, handheld devices, industrial control, etc.

Go shopping ITEAD8285 WiFi Wireless Module (SKU:)

Features

  • 802.11 b/g/n/d/e/i/k/r
  • Support STA/AP/STA+AP mode
  • WPA/WPA2 PSK and WP
  • Built-in TCP/IP protocol stack, support multi-way TCP Client connection
  • Support rich Socket AT commands
  • Support UART/GPIO data communication interface
  • Built-in 32 bit MCU, also work as application processor
  • 3.3V single supply
  • Wi-Fi Direct (P2P) support
  • Support MIMO 1×1 and 2×1, STBC, A- MPDU and A-MSDU aggregation and 0.4μs guard interval
  • WMM power save U-APSD
  • Multiple queue management to fully utilize traffic prioritization defined by 802.11e standard.
  • Adaptive rate fallback algorithm sets the optimum transmission rate and Tx power based on actual SNR and packet loss information.

Functions

Main functions

Operating Mode

Main functions

Applications

Main Technical Specifications

Module Type ITEAD8285
Chip ESP8285
Wi-Fi Wireless Standard IEEE 802.11b/g/n/d/e/i/k/r
Frequency Range 2.412GHz-2.484GHz
Tx Power 802.11b: +20 +/-2dBm (@11Mbps)
802.11g: +17 +/-2dBm (@54Mbps)
802.11n: +14 +/-2dBm (@HT20, MCS7)
Rx Sensitivity 802.11b: -91 dBm (@11Mbps ,CCK)
802.11g: -75 dBm (@54Mbps, OFDM)
802.11n: -72 dBm (MCS7)
Connector External:stamp hole interface
External:I-PEX connector
Hardware Peripheral Interface UART,IIC,PWM,GPIO,ADC
Operating Voltage 3.3V
GPIO Drive capability Max:12mA
Operating Current Continue sending=>Average value:~70mA, Peak value: 200mA

Normal mode=> Average value: ~12mA, Peak value: 200mA Standby:<200uA

Operating Temperature Range -40℃~125℃
Storage Temperature Range Temp.:<40℃, Relative humidity:<90%R.H.
Size 13.5mm*13.7mm*1mm;
Serial transparent transmission Transmission rate 110-921600bps
TCP Client 5
Software Wireless network types STA/AP/STA+AP
Security WEP/WPA-PSK/WPA2-PSK
Encryption WEP64/WEP128/TKIP/AES
Firmware Upgrade UART Download / OTA (via network)
Network Protocols IPv4, TCP/UDP/FTP/HTTP

Hardware

ITEAD8285 has many interfaces, supports UART, IIC, PWM, GPIO, ADC, etc., suitable for a variety of networking applications.

Pin Definitions

PIN Function Description
1 ANT WiFi Antenna
2 ADC ADC, input range: 0V-1V;
3 EN Chip enable terminal. Active high: chip works normally;

Active low: chip close, very small current.

4 GPIO16 GPIO16
5 GPIO14 GPIO14; HSPI_CLK
6 GPIO12 GPIO12; HSPI_MISO
7 GPIO13 GPIO13; HSPI_MOSI; UART0_CTS
8 GPIO15 GPIO15; HSPI_CS; UART0_RTS
9 GPIO2 Also used as a programming flash UART1_TX;GPIO2
10 GPIO0 GPIO0; SPI_CS2
11 GPIO4 GPIO4
12 GND GND
13 GPIO9 PIHD;HSPIHD;GPIO9
14 GPIO10 SPIWP;HSPIWP;GPIO10
15 GPIO11 SPI_CS0;GPIO11
16 GPIO6 SPI_CLK;GPIO6
17 GPIO7 SPI_MSIO;GPIO7
18 GPIO8 SPI_MOSI;GPIO8
19 GPIO5 GPIO5
20 GND GND
21 RX Also used as a programming flash UART Rx;GPIO3
22 TX Also used as a programming flash UART Tx ;GPIO1;SPI_CS1
23 3V3 Power supply
24 RESET External reset(low active)

Power Consumption

Wi-Fi Radio Characteristics

Dimension

WiFi Antenna

Recommended temperature curve

Related terminologies

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