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Small green circuit board with USB connector and separate antenna module

NuoTo

NuoTo USB GSM Module SIM800C Quad-Band Bluetooth

SKU CH-1A3T-VJVJ2

Compact quad-band GSM/GPRS module with Bluetooth sends and receives SMS, transmits voice and data, and plugs directly into a USB port for debugging

  • CPU TypeOther
  • Send and receive SMS with included management software
  • Quad-band GSM/GPRS 850/900/1800/1900 MHz for worldwide use
  • Integrated USB-to-serial chip allows direct computer debugging
  • Compact 78 x 21 x 6 mm module with 50 x 17 x 11 mm antenna
  • Operates from -20 to 85 °C with 0-95 % humidity tolerance

Compact GSM Module with Bluetooth

The NuoTo USB GSM Module SIM800C adds cellular connectivity to a computer or embedded project. It operates on quad-band GSM and GPRS frequencies of 850, 900, 1800 and 1900 MHz for worldwide use. Integrated Bluetooth extends wireless options for data or voice links. The board draws power from a DC 5 V USB port and includes an external antenna.

Upgrade from Basic Serial Modems

This module replaces older single-band or serial-only GSM adapters that lack Bluetooth and need level-shifting circuitry. The jump is worth it when a design requires both SMS management and wireless peripheral pairing without extra hardware. Integrated USB-to-serial conversion removes the need for a separate debugger cable. Worldwide quad-band support eliminates regional hardware variants.

Handles SMS and Voice in Tight Spaces

The 78 x 21 x 6 mm board fits inside small enclosures while transmitting voice, SMS and GPRS data. Low power consumption suits battery-backed or always-on installations. Operating range of -20 to 85 °C and 0 to 95 % RH covers industrial and outdoor environments. It runs out when an application demands LTE speeds, higher data throughput or frequencies outside the four GSM bands.

Highlights

  • Send and receive SMS with included management software
  • Quad-band GSM/GPRS 850/900/1800/1900 MHz for worldwide use
  • Integrated USB-to-serial chip allows direct computer debugging
  • Compact 78 x 21 x 6 mm module with 50 x 17 x 11 mm antenna
  • Operates from -20 to 85 °C with 0-95 % humidity tolerance

Specifications

CPU TypeOther

Questions about this item

What are the physical dimensions of the USB GSM module and its antenna?

The module measures approximately 78 x 21 x 6 mm and the antenna measures approximately 50 x 17 x 11 mm.

How is the module connected to a computer and what step is often missed?

Plug the module directly into a USB port; the integrated USB-to-serial chip creates a virtual COM port that must be selected in your terminal software.

What component may need replacement over time and how is it accessed?

The SIM card sits in the on-board holder; swap it by sliding the tray when changing networks or if the card fails.

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