Description
Wi-fi module based on ESP8266 system. It has uploaded the NodeMCU 0.9.5 build 20150318 (Lua 5.1.4) software which can be programmed using the Lua scripting language. The is equipped with 9 GPIO ports with support for I2C and SPI, analog input. In addition, the board has UART interface which provides programming via USB port using external USB-UARTconverter. Receiver RX tolerates a voltage of 5 V.
Read more NodeMCU software details on the GitHub. |
Module dimensions: 38 x 25 mm, pins pitch is 2.54 mm. The set includes: module and goldpin strap for self-soldering.
The product is compatible with Arduino On the Adafruit, you can findthe user manual along with support forthe Arduino IDE. |
The Lua Language
Lua is a scripting language that can work independently or as an extension of the capabilities of other applications. It was implemented as a library of C language. It features a simple code, high performance and the possibility to transfer between platforms. Details onthe home page of Lua.
Pins
Pin | Description |
---|---|
TX | The Pin of the UART transmitter, it works with a voltage of 3.3 V. |
RX | The Pin of the UART receiver, it tolerates a voltage of 5 V. |
V+ | Adjustable supply voltage from 3 V to 12 V. |
VBat |
Adjustable supply voltage from 3 to 12 Volts (for battery connection, for example, LiPol or AA). |
GND | The ground of the system. |
3B | Output of 3.3 V. |
And | Analog input (maximally 1.8 V). |
RST | Reset of the system, it tolerates a voltage of 5 V. |
EN |
Pin Enable for ESP8266. By default, in the high status. Indicating the low status, resets the system. It works with a voltage of 3.3 V. |
GPIO 0, 2, 4, 5, 12,13, 14, 15,16 |
GPIO pins at the user disposal. They work with a voltage of 3.3 V, the maximum current of each pin is 12 mA. |
Specification
- Supply voltage: 3 V to 12 V
- The module is based on ESP8266 system
- The number of GPIO pins: 9
- I2C and SPI interfaces support
- UART interface support:
- RX - it tolerates the voltage of 5 V
- TX - it operates with a voltage of 3.3 V
- 1 analog input supports the voltage of 1.8 V
- The Reset button
- The user button that is also used to enter into the bootloading mode
- Built-in PCB antenna
- Pins pitch: 2.54 mm
- The module has goldpins for self-soldering
- Module dimensions: 38 x 25 mm
Useful links |