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Attention! The product has been discontinued. Check other products in category. |
Description
Wi-fi module based on the ESP8266 chip. It works in wi-fi 802.11 b/g/n standard at 2.4 GHz.
It has displayed all connectors of the system, the embedded regulator and the voltage converter of 3.3 V - 5 V, LEDs, microUSB connector, mounting holes and switch. The board size is 55 x 26 mm.
Features of the module SparkFun Thing
- It has 20 pins:
- 3 x GPIO - digital outputs/inputs
- UART interface (TX, RX) - for communicating, for example, with Arduino
- Input of the regulator: 5 V
- The I2C bus (the SDA and SCL lines)
- Mounting: THT:
- Pins pitch: 2.54 mm,goldpin connectorssold separately
- Equipped with built-in PCB antenna
- It has u.FL connector for external antenna connection
- Built-in 3 LEDs
- 1 x connected to pin 5
- 1 x indicating power supply
- 1 x indicating powering
- It has a microUSB and miniJST connector for powering
- Integrated system of the rechargeable lipol 1S battery
- Built-in switch allows you to turn off the power supply at any time
- It has four mounting holes with the 3 mm diameter
- Dimensions: 55 x 26 mm
Connection
The module has 20 pins displayed on both sides of the board. The set does not containgoldpin strap, pitch of 2.54 mm, it must be purchased separately and self-soldered.
| Pin | Description |
|---|---|
| Section UART | |
| DTR | Pin switches ESP8266 system into bootloader mode. |
| TX0 | Transmitter of the serial UART interface, pin 7 of the ESP8266 chip. |
| RX0 | Receiver of the serial UART interface, 8 pin, ESP8266 chip. |
| 3V3 | By default, this pin does not power the ESP8226 system, to use it, solder the jumper on the back side of the board. |
| NC | Not connected - it has to be left disconnected. |
| GND | The ground of the system. |
| Section I2C | |
| GND | The ground of the system. |
| 3V3 | Output of 3.3 V. |
| SDA | The data line of the I2C bus or pin GPIO2 of the ESP8226 system. |
| SCL | Clock line of the I2C bus or pin GPIO14 of the ESP8226 system. |
| Section GPIO / ADC | |
| GND | The ground of the system. |
| VIN |
|
| 5 | GPIO5 of the ESP8226 system connected to the LED. |
| 0 | GPIO0 of the ESP8226 system. |
| 4 | GPIO4 of the ESP8226 system. |
| 13 | GPIO13 of the ESP8226 system and MOSI of the SPI bus. |
| 12 | GPIO12 of the ESP8226 system and MISO of the SPI bus. |
| XPD | GPIO16of the ESP8226 system, is used to switch the system into sleep mode. |
| ADC | A0 input of the 10-bit analog to digital converter. |
| EN | Pin activating the ESP8226 system. By default in the high status - the system is active. To disable a module, you must specify the low status. |
| A detailed description is available in the user manual. |
Specification
- Supply voltage: 3.3 V or 5 V
- Working voltage of pins: 5 V
- Current consumption of up to 300 mA
- It supports WiFi 802.11 b, g, n standard
- It operates in the 2.4 GHz frequency
- It supports WPA / WPA2 protections
- It can work in AP mode (Access Point), STA mode (standalone) and AP+STA mode
- Transmitter power: 19,5 dBm
- It supports AT commands
- Communication is via the serial UART interface
- It has a built-in PCB antenna
- It is equipped with communication interfaces: SPI, UART, SDIO
- Mounting: through hole - pitch of 2.54 mm (goldpin connectorssold separately)
- Dimensions: 50 x 26 mm
Useful links |
