Description
Product Overview
The YOURRYONG HC-12 SI4438 Serial Port Module is engineered for stable, high‑speed data transfer in compact electronic designs. Each kit includes six modules, each measuring just 3.94 × 2.95 × 0.79 inches and weighing only 1.06 oz, making them ideal for space‑constrained applications. Constructed with a robust PCB and a reliable SI4438 chipset, these modules deliver consistent performance across a wide temperature range. ![[Product front view showing all components]](https://www.finddomains.store/wp-content/uploads/2026/06/7cc2349474b645c8bc0102717b3ef145.jpg)
Usage
Designed for makers, engineers, and educators, this serial port solution integrates effortlessly with Arduino, Raspberry Pi, and other microcontroller platforms. Use it in robotics, IoT sensors, remote monitoring, or any project that requires a dependable UART interface. Its lightweight form factor ensures minimal impact on overall device weight, perfect for drones, wearables, and portable gadgets.
Why Choose Us
YOURRYONG guarantees strict quality control, sourcing premium components and performing thorough testing on every module. Our modules are backed by a responsive support team ready to assist with wiring diagrams, firmware tips, and troubleshooting. Choose us for consistent reliability, fast shipping, and a commitment to customer satisfaction.
Key Features
- Compact size fits into tight enclosures without sacrificing performance
- Lightweight design reduces overall device weight for portable applications
- SI4438 chipset ensures stable, high‑speed serial communication
- Compatible with Arduino, Raspberry Pi, and most microcontroller boards
- Dedicated customer support and detailed documentation included
FAQ
What baud rates does the HC-12 module support?
The module operates reliably from 1200 bps up to 115200 bps, covering most common serial communication needs.
Is the module compatible with 3.3 V and 5 V logic?
Yes, the HC-12 SI4438 module includes built‑in voltage regulation, allowing direct connection to both 3.3 V and 5 V systems.
How many modules are included in the package?
Each package contains six individual serial port modules, ready for immediate prototyping or small‑scale production.
Do I need additional drivers to use the module?
No extra drivers are required; the module communicates via standard UART, which is natively supported by most microcontrollers.
What is the warranty period?
All YOURRYONG modules come with a 12‑month limited warranty covering manufacturing defects.




Hilitand PCI 2.1 8-Port Multi-Serial Card, 1Mbps Plug and Play Windows
Reviews
There are no reviews yet.