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If ordered before 3 p.m.



SIM808 Module GSM GPRS Features:

  • Power Input Options:
    • DC044 Interface & V_IN Pin: Voltage input ranges from 5V to 26V. Ensure a 2A current when using a 5V power source.
    • Lithium Battery Interface: Accepts a voltage of 3.5V to 4.2V.
  • Operational Switch: To activate the module, switch to the OPEN state (closer to the board’s interior side).
  • Antenna Interfaces: Equipped with GSM, GPS, and BT antenna connectors, ensuring wide coverage and signal strength.
  • Startup Mechanics: Once powered, the PWR LED lights up. A long press (~2 sec) on the start button initiates the SIM808’s operations. Successful module registration is indicated by the LED flashing pattern.
  • TTL Serial Interface: Offers a TTL level interface. The VMCU pin dictates the TTL UART’s high level, catering to 1.25V, 3.3V, or 5V systems. Ensure correct VMCU connection based on your MCU type.
  • USB Interface: Exclusively for SIM808 firmware updates.

Operational Guide of SIM808 Module:

  1. Essentials:
    • SIM808 SHIELD
    • DC9V Adapter
    • USB-TTL Module or equivalent
    • PC Software
  2. Setting It Up:
    1. Link USB-TTL to the UART Interface:
      • TXD (USB-TTL) → RXD (SIM808)
      • RXD (USB-TTL) → TXD (SIM808)
      • GND (USB-TTL) → GND (SIM808)
    2. Insert a valid SIM card.
    3. Attach the GPS and GSM antennas.
    4. Connect a power adapter to the DC044 interface.
    5. Adjust the operational switch.
    6. Activate the module with a 2-second press on the POWKEY.

In the Box:

  • 1 X SIM808 Module
  • 1 X GSM Antenna
  • 1 X GPS Antenna

Step into the world of enhanced global positioning and communication with Kunkune’s SIM808 board. It’s more than a module – it’s your next step in tech evolution.

The estimated delivery time:

  • Standard (Free for orders over 25£ or 1.90£ Service) – Estimated 1-2 working days
  • Tracked 24H – Estimated 1-2 working days with tracking
  • Next Day Special Guarantee- Next Working Day before 1 p.m. (if ordered before 3 p.m.)

Items are normally dispatched within 24 hours (the same day if ordered before 3 p.m., excluding weekends) in 99.9% of cases.

When you place an order, and it is successful, you will receive an email confirmation for the received order. When the order is dispatched, you will receive an email confirming that your order is complete. Please note that if the order is placed with the standard service, tracking will only show when a delivery attempt is made or when the order is delivered.