Mini SIM800L GSM GPRS Module – Ultra-Compact Quad-Band MicroSIM Card Core Board with TTL Serial Interface for Arduino and IoT Projects
Mini SIM800L GSM GPRS Module – Ultra-Compact Quad-Band MicroSIM Card Core Board with TTL Serial Interface for Arduino and IoT Projects
The SIM800L GSM GPRS Module is an ultra-compact and powerful cellular communication module that enables your microcontroller projects to connect to GSM networks for voice, SMS, and GPRS data transmission. Based on the SIM800L chipset, this core board supports quad-band frequencies (850/900/1800/1900MHz), ensuring global GSM compatibility.
Designed with minimal footprint, this is one of the smallest GSM modules available, making it ideal for space-constrained IoT applications, such as remote monitoring, smart tracking, home automation, and wireless data transmission.
It features a MicroSIM card slot, onboard network status LED, and communicates via TTL-level serial interface (UART), allowing seamless integration with Arduino, ESP8266, ESP32, STM32, and other 3.3V logic-level microcontrollers.
Key Features:
Module: SIM800L Core Board
Frequency Bands: Quad-band 850/900/1800/1900MHz (works worldwide)
SIM Type: MicroSIM Card
Network Support: GSM, GPRS (2G)
Functions Supported:
Voice call and SMS messaging
GPRS for mobile data
TCP/IP and HTTP communication
Control Interface: TTL Serial (UART) – AT command set compatible
Baud Rate: Configurable, default 9600 bps
Power Supply Voltage: 3.7V–4.2V (recommended 4V, 2A for stable operation)
Logic Level: 2.8V (safe for 3.3V microcontrollers, use a level shifter for 5V boards)
Onboard Components:
MicroSIM card holder
Network LED indicator
Antenna interface (external antenna required for better signal reception)
Customize PCB
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
- Send your complete schematic or diagram via our Facebook page.
- Our team will review your diagram carefully to understand the design scope and requirements.
- A 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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Learn With CraftedTech Engineering
Learn With CraftedTech Engineering

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