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Small green circuit board with SIM card slot and antenna attached

DUTTY D-001 SIM800L GPRS Development Board Quad Band 850/900/1800/1900MHz 3.7-4.2V

SKU CH-FTRP-H43AQ

Compact quad-band GSM/GPRS breakout board with SIM800L module, UART interface, auto-baud AT commands, onboard antenna and status LED, operating at 3.7-4.2V

  • Quad-band 850/900/1800/1900 MHz enables global GSM/GPRS coverage
  • Sleep-mode current as low as 1 mA extends battery life in remote deployments
  • UART with auto-baud detection simplifies AT-command integration with any microcontroller
  • Direct TTL serial link removes the need for a MAX232 level shifter
  • Onboard LED indicates network status at a glance

IoT Development Board for GPRS Projects

The DUTTY D-001 is a compact breakout board built around the SIM800L module. It targets makers and engineers who need a simple way to add cellular connectivity to microcontroller projects without designing RF circuitry themselves.

Quad-Band GSM/GPRS Support

The board operates on 850, 900, 1800 and 1900 MHz bands, making it compatible with global GSM networks including China Mobile and China Unicom. This specification determines whether the module can connect to the cellular infrastructure available in your deployment region.

Low Power Consumption with Signal Indicators

In sleep mode the module draws as little as 1 mA, extending battery life for remote sensor nodes. Onboard LEDs flash slowly when a network signal is present and quickly when the module is searching, giving immediate visual feedback without extra debugging hardware.

Pontos fortes

  • Quad-band 850/900/1800/1900 MHz enables global GSM/GPRS coverage
  • Sleep-mode current as low as 1 mA extends battery life in remote deployments
  • UART with auto-baud detection simplifies AT-command integration with any microcontroller
  • Direct TTL serial link removes the need for a MAX232 level shifter
  • Onboard LED indicates network status at a glance

Especificações

BrandDUTTY
ModelD-001
Part NumberD-001

Perguntas sobre este artigo

What does the 1 mA sleep current mean for battery life in a real deployment?

In sleep mode the board draws only 1 mA, so a small Li-ion cell can keep it alive for weeks while it waits for an incoming SMS or GPRS trigger.

How does the UART interface with auto-baud detection limit data throughput?

The TTL serial link uses standard AT commands (3GPP TS 27.007 and 27.005) with auto-baud, so the practical ceiling is the baud rate you configure on the host microcontroller.

What mounting space does the 2.5 cm by 2.3 cm board need inside an enclosure?

The module itself measures 2.5 cm by 2.3 cm; allow extra clearance for the onboard antenna and the SIM card slot that protrudes from the edge.

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