How to Use LinkIt ONE board: Examples, Pinouts, and Specs

The LinkIt ONE board, manufactured by Seeed Studio, is a versatile development platform designed for Internet of Things (IoT) applications and rapid prototyping. It integrates multiple connectivity options, including Wi-Fi, GSM, GPS, and Bluetooth, making it an all-in-one solution for developers. The board is powered by the MediaTek Aster (MT2502) chipset and is compatible with the Arduino ecosystem, allowing seamless integration with existing Arduino libraries and tools.

• IoT device prototyping
• Smart home automation systems
• GPS tracking and navigation
• Wearable technology
• Remote monitoring and control systems
• Wireless data transmission and logging

The LinkIt ONE board features a pin layout similar to Arduino boards, making it easy to use with existing shields and accessories. Below is the pin configuration:

1. Powering the Board:

   • Connect the board to your computer via a micro-USB cable for development and power.
   • Alternatively, use a 3.7V Li-Po battery for portable applications.
   • Ensure the power switch is set to the correct position (USB or BAT).

2. Programming the Board:

   • Install the LinkIt ONE SDK and drivers from the Seeed Studio website.
   • Use the Arduino IDE to write and upload code to the board. Select "LinkIt ONE" as the board type in the IDE.

3. Connecting Peripherals:

   • Use the digital and analog pins to connect sensors, actuators, and other peripherals.
   • For wireless communication, configure the Wi-Fi, GSM, GPS, or Bluetooth modules as needed.

4. Example Circuit:

   • Connect an LED to pin 13 with a 220-ohm resistor.
   • Use the following code to blink the LED:

// Example: Blink an LED connected to pin 13 on the LinkIt ONE board

void setup() {
  pinMode(13, OUTPUT); // Set pin 13 as an output
}

void loop() {
  digitalWrite(13, HIGH); // Turn the LED on
  delay(1000);            // Wait for 1 second
  digitalWrite(13, LOW);  // Turn the LED off
  delay(1000);            // Wait for 1 second
}

• Power Supply: Always ensure the board is powered correctly to avoid damage. Use a Li-Po battery with the recommended voltage and capacity.
• Antenna Connections: For GSM, GPS, and Wi-Fi functionality, connect the appropriate antennas to the board.
• Firmware Updates: Regularly check for firmware updates from Seeed Studio to ensure optimal performance and compatibility.
• Heat Management: Avoid prolonged use in high-temperature environments to prevent overheating.

1. Can I use Arduino shields with the LinkIt ONE?
   Yes, the LinkIt ONE is compatible with most Arduino shields due to its similar pin layout.

2. What is the maximum range of the Bluetooth module?
   The Bluetooth module supports a range of up to 10 meters in open spaces.

3. How do I switch between USB and battery power?
   Use the power switch on the board to toggle between USB (for development) and BAT (for battery).

4. Can I use the board without a Li-Po battery?
   Yes, the board can be powered solely via USB, but certain features like GSM may require a battery.

5. Where can I find additional resources?
   Visit the Seeed Studio website for detailed documentation, SDKs, and community support.

By following this documentation, you can effectively utilize the LinkIt ONE board for your IoT and prototyping projects.