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SIM900A GSM/GPRS Development Module – Wireless Communication Board for SMS, Voice, and Data Transmission with STM32, Arduino, and Microcontrollers

SIM900A GSM/GPRS Development Module – Wireless Communication Board for SMS, Voice, and Data Transmission with STM32, Arduino, and Microcontrollers

Regular price ₱180.00 PHP
Regular price Sale price ₱180.00 PHP
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The SIM900A GSM Module Development Board is a reliable and feature-rich wireless communication solution designed for sending SMS messages, making voice calls, and transmitting GPRS data over GSM networks. Based on the SIMCom SIM900A chipset, this module supports dual-band GSM (900/1800MHz) and is ideal for IoT, automation, telemetry, and remote monitoring systems.

This fully integrated development board version includes essential components like voltage regulators, serial headers, SIM card holder, and antenna connectors, making it easy to integrate with STM32, Arduino, AVR, PIC, and other microcontroller platforms using standard AT commands via UART (TTL serial).

Key Features:

Module Chip: SIM900A by SIMCom

GSM Band Support: Dual-band 900/1800MHz (Asia, Africa, and selected regions)

Supported Functions:

Send/receive SMS

Make/receive voice calls

Transmit GPRS data (TCP/UDP/HTTP)

Control Interface: UART (TTL level, AT command set compatible)

SIM Card Slot: Standard SIM card support

Antenna Interface: External GSM antenna connector for strong signal reception

Operating Voltage: 5V input (regulated on-board)

Logic Level: 3.3V TTL (compatible with 3.3V microcontrollers; level shifting required for 5V logic)

Baud Rate: Default 9600 bps (configurable)

Status Indicators: Power and network status LEDs

Board Features:

Onboard voltage regulator and filtering

Reset and power buttons

Socket for external antenna

Easily breadboardable or mountable

Customize PCB

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PCB Layout & Design Services

We provide professional PCB layout and design services for electronics projects, prototypes, and small to medium production needs. Our goal is to deliver accurate, manufacturable, and well-documented PCB designs tailored to your specific requirements.

How to Request a PCB Layout/Design:

  • Send your complete schematic or diagram via our Facebook page.
  • We will assess your diagram and provide a quotation based on the complexity and requirements.

Special Offer for New Customers!!

New customers receive a special introductory discount on their first PCB layout/design project.
This allows us to review your design requirements and build a long-term working relationship.

How to Request a PCB Layout / Design

  1. Send your complete schematic or diagram via our Facebook page.
  2. Our team will review your diagram carefully to understand the design scope and requirements.
  3. detailed quotation will be provided based on:
    • Design complexity
    • Board size and number of layers
    • Components and package types
    • Special routing or manufacturing requirements

📌 Providing your diagram is essential so we can give you an accurate and fair quotation.

PCB Layout & Design Requirements

To ensure quality and accuracy, please note the following:

  • All schematics must be clear, complete, and properly labeled
  • Specify:
    • Board dimensions (if available)
    • Number of PCB layers
    • Preferred components or footprints (if any)
  • Hand-drawn, unclear, or incomplete schematics are not accepted
  • Rush or urgent requests may incur additional charges

What’s Included in the Design Package

Each completed project includes the following deliverables:

2D PCB layout images
3D PCB render images
PCB Gerber files (ready for fabrication)
Bill of Materials (BOM)
Component Placement List (CPL / Pick-and-Place file)
Wiring diagram (PDF)
PCB board layout (PDF)

All files are prepared to be manufacturer-ready and easy to review.

Pricing Information

Pricing is project-based and depends on:

  • The submitted schematic or diagram
  • Board size and layer count
  • Types of components used (SMD, through-hole, fine-pitch, BGA, etc.)
  • Design complexity and routing difficulty

📌 Final pricing is confirmed only after reviewing the client’s diagram.

Design Review & Approval Process

Before final delivery:

  • The client will receive preview files for checking
  • Please review carefully for:
    • Errors
    • Missing information
    • Clarifications or revisions
  • Once the design is confirmed and approved, the final files will be sent to the client’s email

⚠️ After final approval, any major changes may be treated as a new request.

Payment Methods

Philippines (Local Clients):

  • GCash
  • Bank Transfer

International Clients:

  • PayPal

📌 Design work starts after payment confirmation unless otherwise agreed.

 

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