WEMOS D1 Mini NodeMCU

Wiring Connections:

• Power:
  • V5 (5V): Connect this pin to a 5V power source. It powers the board and connected peripherals.
  • GND (Ground): Connect this pin to the ground of your power supply or other connected components.
• I/O Pins:
  • D0 to D8: Digital I/O pins for connecting sensors, relays, and other components.
  • A0: Analog input pin for reading analog signals from sensors.
  • TX/RX: Serial communication pins for UART. TX transmits data and RX receives data.
• USB Port:
  • Micro USB Connector: For power and programming the board.

Power:

• Operating Voltage: 3.3V (regulated from 5V input).
• Power Consumption: Varies based on activity, usually around 100mA during operation, less in sleep mode.
• Power Source: Can be powered through the micro USB port or directly through the 5V pin.

Input and Output:

• Digital I/O: 11 pins (D0 to D8) for digital input and output tasks.
• Analog Input: 1 pin (A0) for reading analog values from sensors.
• Serial Communication: TX and RX pins for UART communication with other devices.
• PWM: Supports Pulse Width Modulation on several digital pins for motor control and LED dimming.

Physical Characteristics:

• Dimensions: 34.2mm x 25.6mm
• Mounting Holes: Includes mounting holes for attachment to enclosures or other surfaces.
• Connector Type: Micro USB for power and programming.

Technical Specifications:

• Processor: Tensilica L106 32-bit RISC microprocessor.
• Clock Speed: Up to 80 MHz.
• Memory: 4MB flash memory for code and data storage.
• Connectivity: Built-in Wi-Fi 802.11 b/g/n for network communication.
• GPIO: General-purpose I/O pins with pull-up/pull-down resistors.

Additional Features:

• Built-in LED: Onboard LED can be used for basic status indication and debugging.
• Compatibility: Works with various shields and modules designed for the Arduino ecosystem.
• Development Environment: Fully supported by the Arduino IDE for programming and development.

How to Use:

1. Power Connection:
   • Connect Power: Use a micro USB cable to connect the board to a 5V power source or plug it into a USB power adapter.
2. Programming:
   • Install Arduino IDE: Download and install the Arduino IDE on your computer. Add ESP8266 support through the Board Manager.
   • Select Board: In the Arduino IDE, choose “WEMOS D1 Mini” from the list of ESP8266 boards.
   • Write Code: Create your code using the Arduino programming language.
   • Upload Code: Connect the board to your computer via USB and upload your code using the Arduino IDE.
3. Connecting Peripherals:
   • Digital I/O: Connect digital components like sensors and relays to the digital I/O pins (D0 to D8).
   • Analog Input: Connect analog sensors to the A0 pin to read analog values.
   • Serial Communication: Use the TX and RX pins to interface with serial devices such as GPS modules or serial displays.
4. Wi-Fi Setup:
   • Configure Wi-Fi: Write code to connect the board to a Wi-Fi network by specifying the network SSID and password.
   • Network Tasks: Use libraries like ESP8266WiFi to handle network tasks, such as connecting to servers or sending data.
5. Testing and Debugging:
   • Use Serial Monitor: Open the Serial Monitor in the Arduino IDE to view outputs and debug issues.
   • Check Connectivity: Ensure the board connects to the Wi-Fi network and test with your peripherals.
6. Integration:
   • Embed in Projects: Use the WEMOS D1 Mini NodeMCU in various projects, such as home automation, IoT devices, or custom electronics.

The WEMOS D1 Mini NodeMCU is a versatile and compact development board ideal for projects that require wireless connectivity and ease of integration with various peripherals.