Instructions

1. Power Supply:

   • Connect the NTP-3200 to a power source within the range of 3.3V to 5V DC.
   • Ensure the power supply is stable to avoid any interruptions in time synchronization.

2. Communication Interface:

   • UART:
     • Connect the TX and RX pins to the corresponding pins on your microcontroller.
     • Set the baud rate to a supported value (e.g., 9600, 19200, 38400, 57600, 115200 bps).
   • I2C:
     • Connect the SDA and SCL pins to the I2C bus of your microcontroller.
     • Set the I2C address as specified in the datasheet.
   • SPI:
     • Connect the MOSI, MISO, SCK, and CS pins to the SPI bus of your microcontroller.
     • Set the SPI mode and clock speed as specified in the datasheet.

3. Configuration:

   • Use the provided configuration commands to set up the NTP server settings, such as the NTP server address, time zone, and update interval.
   • Example command for setting the NTP server address:

     AT+NTPSERVER="pool.ntp.org"
     

4. Time Synchronization:

   • The NTP-3200 will automatically synchronize with the configured NTP server at regular intervals.
   • You can manually trigger a synchronization using the following command:

     AT+SYNC
     

5. Reading Time:

   • To read the current time from the NTP-3200, use the following command:

     AT+TIME?
     

   • The module will respond with the current time in the format YYYY-MM-DD HH:MM:SS.

6. Troubleshooting:

   • If the module fails to synchronize, check the network connection and ensure the NTP server is accessible.
   • Verify that the communication interface settings (baud rate, I2C address, SPI mode) are correct.
   • Check the power supply and ensure it is within the specified range.

7. Storage:

   • Store the NTP-3200 in a dry, cool place away from direct sunlight and sources of heat.
   • Avoid exposure to high humidity and corrosive environments.

For more detailed information, refer to the NTP-3200 datasheet and user manual.