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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. | ||
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==Pin Definitions== | ==Pin Definitions== | ||
Revision as of 08:48, 7 July 2016
Contents
Overview
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） |
