CP2102 ESP 12E ESP8266 NodeMcu V2 Lua WIFI IoT Development Board
Package QFN-28
CP2102 overview
The All-new CP2102 NodeMcu v2 ESP8266 Lua ESP8266 WIFI IoT Development Board is a fast leading edge low-cost WiFi technology. Modern high-level mature LUA-based technology. This IoT development board is an integrated unit with all available resources on board. This wifi IoT board is super simple to complement your existing Arduino projects or any development board that has I/O pins available.
Key specifications
Processor
ESP-12E
Self-powered
3.0 to 3.6 V
USB bus-powered
4.0 to 5.25 V
Datasheet
datasheet-52.pdf
Format PDFSize 409 KBLanguage ENRevision Rev. 1.2
Third-party / unverified source
CP2102 features
- 11 b/g/n Wi-Fi Direct (P2P), soft-AP
- Integrated TCP/IP protocol stack
- Use CP2102 to replace the CH340G.
- Open-source, Interactive, Programmable, Low cost, Simple, Smart, WI-FI enabled
- Arduino-like hardware IO
- Integrated low-power 32-bit CPU
- Advanced API for hardware IO, which can dramatically reduce the redundant work for configuring and manipulating hardware.
- Code like Arduino, but interactively in Lua script.
- Nodejs style network API
- Event-driven API for network applications,
- which facilitates developers writing code running on a 5mm*5mm sized MCU in Nodejs style.
- Greatly speed up your IOT application development process.
- Lowest cost WI-FI
- Less than WI-FI MCU ESP8266 integrated and easy to prototyping development kit.
- We provide the best platform for IoT application development at the lowest cost.
- Integrated TR switch, balun, LNA, power amplifier, and matching network
- Integrated PLL, regulators, DCXO, and power management units
- Onboard USB to serial chip to easily program and upload codes from the Arduino IDE
- Embeds logic level converter circuits
- Has an onboard 3.3V regulator to ensure enough power to function as your go-to WiFi chip!
- Easy access to the GPIO pins for easy prototyping
- Easy to use breadboard friendly form factor
- Voltage Regulator / Converter, excellent DC to DC conversion, super-efficient
CP2102 pinout
| Name | Description |
|---|---|
| Power | Micro-USB: NodeMCU can be powered through the USB port 3.3V: Regulated 3.3V can be supplied to this pin to power the board GND: Ground pins Vin: External Power Supply |
| Control Pins | The pin and the button reset the microcontroller |
| Analog Pin | Used to measure analog voltage in the range of 0-3.3V |
| GPIO Pins | NodeMCU has 16 general-purpose input-output pins on its board |
| SPI Pins | NodeMCU has four pins available for SPI communication. |
| UART Pins | NodeMCU has two UART interfaces, UART0 (RXD0 & TXD0) and UART1 (RXD1 & TXD1). UART1 is used to upload the firmware/program. |
| I2C Pins | NodeMCU has I2C functionality support but due to the internal functionality of these pins, you have to find which pin is I2C. |
CP2102 applications
- Upgrade of RS-232 legacy devices to USB
- Cellular phone USB interface cable
- PDA USB interface cable
- USB to RS-232 serial adapter
More about CP2102
Pinout of CP2102 ESP8266 NodeMcu Development Board
| Pin Category | Pin Name | Pin Description |
|---|---|---|
| Power | Micro-USB, 3.3V, GND, Vin | Micro-USB: NodeMCU can be powered through the USB port 3.3V: Regulated 3.3V can be supplied to this pin to power the board GND: Ground pins Vin: External Power Supply |
| Control Pins | EN, RST | The pin and the button reset the microcontroller |
| GPIO Pins | GPIO1 to GPIO16 | NodeMCU has 16 general-purpose input-output pins on its board |
| SPI Pins | SD1, CMD, SD0, CLK | NodeMCU has four pins available for SPI communication. |
| UART Pins | TXD0, RXD0, TXD2, RXD2 | NodeMCU has two UART interfaces, UART0 (RXD0 & TXD0) and UART1 (RXD1 & TXD1). UART1 is used to upload the firmware/program. |
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