DIY Fan Temperature Control Board – Auto Speed PCB Module

DIY Automatic Fan Temperature Control Board – No-Solder PCB Module

Take full control of your cooling setup with this compact, no-welding DIY Fan Temperature Control Board. Designed for makers, hobbyists, and electronics enthusiasts, this intelligent step-down PCB module automatically adjusts fan speed based on ambient temperature — keeping your projects running cool and efficient without any manual intervention.

Made in Mainland China.

Key Features

• Automatic Fan Speed Control: Senses temperature and adjusts fan speed in real time for smart, hands-free thermal management.
• No Soldering Required: Beginner-friendly plug-and-play design — simply connect and go.
• Wide Input Voltage Range: Accepts a constant 12V–32V DC input, making it versatile for a range of power supplies and DIY builds.
• Step-Down Output: Delivers a stable DC 12V output to your fan, protecting components from voltage spikes.
• Multiple Sensor Options: Compatible with photosensitive, thermal probe, and surface-mount sensor types for flexible installation.
• Auto-Start at 35°C: Fan activates automatically once the probe detects temperatures at or above 35°C (subject to actual probe temperature).
• Compact Form Factor: Tiny 2 × 3.3 cm board fits neatly into enclosures, PC cases, or industrial automation setups.
• Available in 1, 2, or 3-Set Packs: Stock up for multiple projects.

Specifications

• Model: Fan Temperature Control Board
• Dimensions: 2 × 3.3 cm
• Input Voltage: Constant 12V–32V DC
• Output Voltage: DC 12V
• Sensor Types: Photosensitive / Thermal Probe / Surface Mount
• Auto-Start Temperature: 35°C (actual startup depends on probe reading)
• Fans Supported: 1 fan per board (recommended: 12V, 0.4A or less)
• Welding Required: No
• Battery Included: No
• Package Contents: 1, 2, or 3 sets (as selected)

Please Note: Due to manual measurement, a tolerance of 5–10 mm may exist. Slight colour variations may occur due to lighting differences in product photography. For controlling multiple fans simultaneously, a separate temperature control board is required per fan.

Great For

• DIY electronics and maker projects
• PC cooling systems and case fans
• Industrial automation enclosures
• 3D printer thermal management
• Custom electronics builds requiring automatic thermal regulation

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For general guidance on electrical safety in DIY electronics projects, refer to the U.S. Consumer Product Safety Commission – Electrical Safety resource.

Frequently Asked Questions

Q: What fan size is compatible with this fan temperature control board?

A: This DIY fan temperature control board is designed for use with a single 12V DC fan rated at 0.4A or less. Using a fan that draws more current than recommended may affect performance or damage the board. For multiple fans, use one board per fan.

Q: Does this module require soldering or any special tools to set up?

A: No soldering is required. This is a no-weld, plug-and-play PCB module, making it ideal for beginners and experienced makers alike. Simply connect your power supply and fan to get started.

Q: At what temperature does the fan automatically turn on?

A: The fan is set to start automatically when the temperature sensor detects approximately 35°C. The exact startup temperature may vary slightly depending on the type of probe used (photosensitive, thermal probe, or surface-mount) and its placement.

Q: What is the input voltage range for this control board?

A: The board accepts a constant DC input voltage between 12V and 32V, offering flexibility for a wide range of power supplies commonly used in DIY electronics and industrial automation applications.