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Description
The module allows for easy solderable connection of the ESP8266 WiFi chip to the contact board. It has LEDs indicating transmission via UART interface, and resistors forcing a high state on the EN pin (pull-up 10k), and a low state on the GPIO15 pin (via pull-down 10k resistor).
Installed WiFi chip ESP-WROOM-02 works in 802.11 b/g/n WiFi standard at 2.4 GHz. This version is equipped with 6 GPIO outputs, UART interface pins: RX and TX interface pins. It has a built-in LED and PCB antenna. PCB dimensions are 50 x 22 mm.
Specification
- Supply voltage: 3.0 V to 3.6 V
- The voltage of the leads: 3,3 V
- Mounted chip: ESP-WROOM-02(documentation)
- Standard: WiFi 802.11 b/g/n
- Operates at 2.4 GHz
- Supports WPA / WPA2 security
- Can operate in AP (Access Point), STA (standalone) and AP+STA mode
- Supports AT commands
- Communication: UART (Rx, Tx)
- Default UART speed: 115200 bps
- Installation of SMD or THT
- Raster of exits: 2.54 mm (compatible with contact plates)
- It is equipped with communication interfaces: HSPI, UART, I2C, I2S
- Lua software support
- Plate dimensions: 50 x 22 mm
Exits
The module has holes for solder 2.54 mm goldpin raster connectors, which are included in the kit. The board is adapted to the connectors of popular contact plates.
| Pin | Description |
|---|---|
| TxD | UART serial interface transmitter. |
| RxD | UART serial interface receiver. |
| IOx | GPIO output (digital input/output) with a consecutive number. |
| GPIO 0 | GPIO with special function: To update, enter low state (connect to GND). |
| GPIO 15 |
GPIO No. 15 with special function: In the normal and programming mode, the low state must be specified (connect to GND). |
| ADC | Analogue-to-digital converter input. |
| REST | Reset the system. |
| EN | Power down - when you enter a low state, you go into sleep mode. |
| VCC | Power supply - 3.3 V. |
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