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Description:
- The module is designed based on esp8266 by Espressif Systems, which is a competitive WiFi solution.
- The module has the following interface for users, such as UART, IIC, AIO, DIO etc.
Specification:
- 802.11 b / g / n wireless standards;
- STA / AP, STA+AP modes support ;
- TCP / IP protocol stack, One socket;
- Supports standard TCP / UDP Server and Client;
- Supports serial port baud rate configuration:
- 1200/2400/4800/9600/19200/38400/57600/74800/115200 bps;
- Supports serial data bits: 5/6/7/8 bits;
- Supports serial parity: none;
- Supports serial stop bits: 1/2 bit;
- ESP8266 GPIO Pinout 0/2/4/5/9/10/12/13/14/15/16 / ADC / EN / UART TX / UART RX;
- WiFi operation current: continuous transmission operation: ≈70mA (200mA MAX), idle mode: <200uA;
- Serial WiFi transmission rate: 110-460800bps;
- Temperature: -40℃ ~ + 125 ℃;
- Humidity: 10%-90% non-condensing;
Interface Definition and LED Definition
3.1 Interface Definition
This ESP8266 Grove Kit module board provides interface as shown in PCB view. And each pin functions are silk-printed in circuit board, as follows:
Pin | Function | Remark |
GND | Ground |
|
VCC | Power |
|
3V3 | 3.3V |
|
5V | 5.0V |
|
RXD | ESP8266 RXD |
|
TXD | ESP8266 TXD |
|
Dx (0-16) | GPIOx(0-16) |
|
SCL | GPIO5 |
|
SDA | GPIO4 |
|
RESET | ESP8266 reset (pulled on) |
|
FLASH | GPIO0 (pulled on) |
|
PM | PM5003 Series Sensor Interface | a PM2.5 sensor interface |
3.2 LED definition
This ESP8266 Grove Kit module has two LEDs. Red color LED is donated to power supply. Blue color LED is a multi-functional LED, and it connects with GPIO16.
3.3 USB Driver
The USB chip is CH340.
3.4 Default Firmware
The default firmware function is serial to wifi. Users can test the communication between microusb (9600,8,N,1) and TCP (IP address:192.168.4.1, port num:9000).
