Grove UART WiFi ESP8266 無線網路模組 / 串口通訊模組 ESP8266 晶片

商品說明

Grove UART WiFi ESP8266 無線網路模組 / 串口通訊模組 ESP8266 晶片

Grove – UART WiFi 是一個串行無線網路收發器模組，具有無所不在的物聯網 ESP8266的SoC。隨著集成TCP / IP 通訊協定，本模組可以讓您的專案支援 WiFi 網路, 讓您的MCU微控制器透過 WIFI 網路與您的設備通訊互動，無須鑽寫繁雜的程式碼，只需簡單幾行的代碼即可整合。每個ESP8266模塊有預編程的AT命令集的韌體，這意味著你可以發送簡單的文本命令來控制設備。該SoC集成了WEP，WPA / WPA2，TKIP，AES和WAPI引擎，可以作為與DHCP接入點，可以加入現有的WiFi網絡，並具有可配置MAC和IP地址。

Grove UART WiFi ESP8266 產品特色

• Grove 接口 4-pin connector (RX,TX,VCC,GND)
• 802.11 b/g/n protocol (2.4GHz)
• WiFi Direct (P2P), soft-AP
• 支援三種模式: AP, STA and AP+STA coexistence mode
• Integrated TCP/IP protocol stack
• LwIP (lightweight IP)
• Integrated low power 32-bit CPU could be reprogrammed as an application processor
• Integrated temperature sensor
• Serial UART Interface
• Multi-queue QoS management
• Wake up and transmit packets in < 2ms
• Metal shielding
• Onboard ceramic antenna
• Reset switch

產品規格

• Input voltage: 3V / 5V
• Baud Rate: 115200
• Based on ESP8266 ESP-07 SoC
• AT Firmware: esp_iot_sdk_v1.1.0 + Seeed modifications:
• 2x additional AT commands to control blue Link LED.
• Register red WiFi LED to the ESP8266 wifi state LED.
• AT command set
• SDIO 1.1/2.0, SPI, UART
• Five power states: OFF, DEEP_SLEEP, SLEEP, WAKEUP and ON.
• Standby power consumption of < 1.0mW (DTIM=3)
• Integrated TR switch, balun, LNA, power amplifier and matching network
• Integrated PLLs, regulators, DCXO and power management units
• +19.5dBm output power in 802.11b mode
• Power down leakage current of <10uA
• Hardware accelerators for CCMP (CBC-MAC, counter mode), TKIP (MIC, RC4), WAPI (SMS4), WEP (RC4), CRC
• WPA/WPA2 PSK, and WPS driver
• A-MPDU & A-MSDU aggregation & 0.4ms guard interval
• Dimensions: 25.43mm x 20.35mm

原廠技術文件 http://wiki.seeedstudio.com/wiki/Grove_-_UART_WiFi

Grove UART WiFi ESP8266 AT Commands

Using Espressif Systems ESP8266 AT Instruction Set Version 0.24 with SeeedStudio additions.

Basic AT Commands

WiFi AT Commands

TCP/IP AT Commands

Seeed AT Commands

Introduction

Grove – UART WiFi is a serial transceiver module featuring the ubiquitous ESP8266 IoT SoC. With integrated TCP/IP protocol stack, this module lets your microcontroller interact with WiFi networks with only a few lines of code. Each ESP8266 module comes pre-programmed with an AT command set firmware, meaning you can send simple text commands to control the device. The SoC features integrated WEP, WPA/WPA2, TKIP, AES, and WAPI engines, can act as an access point with DHCP, can join existing WiFi networks and has configurable MAC and IP addresses.

Features

• Grove 4-pin connector (RX,TX,VCC,GND)
• 802.11 b/g/n protocol (2.4GHz)
• WiFi Direct (P2P), soft-AP
• Supports three modes: AP, STA and AP+STA coexistence mode
• Integrated TCP/IP protocol stack
• LwIP (lightweight IP)
• Integrated low power 32-bit CPU could be reprogrammed as an application processor
• Integrated temperature sensor
• Serial UART Interface
• Multi-queue QoS management
• Wake up and transmit packets in < 2ms
• Metal shielding
• Onboard ceramic antenna
• Reset switch

Hardware Overview

Here is block diagram of Grove – UART WiF module which consists of following parts.

• Grove – Used to connect to a processor through socket on a base board such as a Seeeduino or Grove Base Shield.

• WiFi antenna – Antenna for ESP8266(Module model)

• Button – With multi-functions
  • Reset – Press down and release quickly.
  • Set ESP8266(Module model) into UART boot mode – Press and hold button until centered red LED indicator light on.

• Led Indicator – Used to indicate working status and for operations by user.
  • Left – a blue LED indicator – Controlled by user through command “AT+LEDON” and “AT+LEDOFF”.
  • Middle – a red LED indicator – light on while Wifi connected or go into UART boot mode
  • Right – a green LED indicator – light on while power on.

Specifications

• Input voltage: 3V / 5V
• Baud Rate: 115200
• Based on ESP8266 ESP-06 SoC
• AT Firmware: esp_iot_sdk_v1.1.0 + Seeed modifications:

2x additional AT commands to control blue Link LED.

Register red WiFi LED to the ESP8266 wifi state LED.

• AT command set
• SDIO 1.1/2.0, SPI, UART
• Five power states: OFF, DEEP_SLEEP, SLEEP, WAKEUP and ON.
• Standby power consumption of < 1.0mW (DTIM=3)
• Integrated TR switch, balun, LNA, power amplifier and matching network
• Integrated PLLs, regulators, DCXO and power management units
• +19.5dBm output power in 802.11b mode
• Power down leakage current of <10uA
• Hardware accelerators for CCMP (CBC-MAC, counter mode), TKIP (MIC, RC4), WAPI (SMS4), WEP (RC4), CRC
• WPA/WPA2 PSK, and WPS driver
• A-MPDU & A-MSDU aggregation & 0.4ms guard interval
• Dimensions: 25.43mm x 20.35mm

Ultra-low power technology

The ESP8266 was designed to achieve very low energy consumption with patented power management technology that reduces non-essential functions and regulates sleep patterns. There are five power states:

• OFF
• DEEP_SLEEP – the real-time clock runs but all other parts of the chip are closed
• SLEEP – consumes less than 12uA with only real-time clock and watchdog running. The chip will wake on MAC, host, RTC or external interrupt.
• WAKEUP – the system is changing from a sleep to on state. Crystal oscillator and PLL are enabled.
• ON – consumes less than 1.0mW (DTIM = 3) or 0.5mW (DTIM = 10).

The Real-time clock can be programmed to wake the ESP8266 within a specified period of time.

The higher the DTIM period, the longer the device may sleep and therefore the more power the device may potentially save.

To meet the power requirements of mobile applications and wearable electronics, to reduce the overall power consumption, the PA output power can be customised in the firmware.

Application Ideas

• Home automation
• Sensor networks
• Mesh networking
• Wearable electronics
• Baby monitor
• Network camera
• Industrial wireless control
• WiFi beacons
• Smart power plug
• Location-aware applications

Getting Started

After this section, you can make Grove – UART WiFi run with only few steps.

Connecting hardware

Seeeduino Litegot Grove socket for connecting two module mentioned above: Grove – OLED Display 1.12 and Grove – Uart Wifi.

They are:

• Grove – OLED Display 1.12 – connection to I2C socket
• Grove – UART Wifi – connection to Serial socket

As shown below:

Download

Click here to download testing code and decompress it to any folders(e.g. Drive D or desktop）
Now you need simple configurations for Arduino sketchbook.

Launch Arduino IDE and click File>Preferences and add absolute location for downloaded testing code at Sketchbook location .

After configurations, please restart Arduino, click File>Sketchbook and choose grove_uart_wifi_wiki after which testing code will show up.

Click Tools>Board to choose Seeeduino Lite and select respective serial port.

Now click Upload(CTRL+U) to burn testing code. Please refer to here for any error prompt and you can also add comment on forum

Review Results

After upload completed, you can see AP identifier on OLED display.Following AP identifiers are found in our office.

Firmware update

Our module board got a firmware burned into it for factory settings, you can burn other firmware to it if you like. Click here to download source code of factory setting firmware.

Preparations

• A USB to serial converter is required for firmware updating, you can choose UartSBee V5 we offered if you don’t know where to get one.
• A Grove-Jump converting cable is required and we also offered for sale. Click here to check.
• A micro USB cable(type A to type C) is required.

Connecting hardware

1. Connect one end of Grove-Jump converting cable with grove socket on Grove – Uart Wifi and connect other end with UartSBee V5 which shown as following.

2. Then connecting cables like following figure:

Download burning tools

• FLASH DOWNLOAD TOOLS
• Bin files of firmware

Operation steps

Now make sure you have downloaded burning software and bin file of firmware. Let us start burning to board.

• Press and hold button until red LED indicator light on which indicate it is ready to burn firmware.

• Start executable files in FLASH DOWNLOAD TOOLS files (double click) to make configurations like following steps:

1. Choose desired files from firmware bin file downloaded.

2. Check SpiAutoSet.

3. Choose respective COM port and BAUDRATE.

Click to START to burn firmware

• Progress bar will be displayed in firmware-burning process.

• Finally, firmware-burning is done.

AT Commands

Using Espressif Systems ESP8266 AT Instruction Set Version 0.24 with SeeedStudio additions.

Basic AT Commands

WiFi AT Commands

TCP/IP AT Commands

Seeed AT Commands