SPH0645 I2S MEMS Microphone Breakout Board Module

The SPH0645 I2S MEMS Microphone Breakout Board Module is a compact, high-quality digital audio capture solution designed for makers, developers, and electronics enthusiasts. Built with a plastic and metal construction and measuring just 17 × 13mm, this ultra-small breakout board delivers crystal-clear I2S digital audio output — perfect for Raspberry Pi projects, DIY audio recording setups, and microcontroller-based builds.

Key Features

• I2S Digital Output: Clean, noise-resistant digital audio signal compatible with Raspberry Pi, ESP32, and other I2S-capable microcontrollers.
• MEMS Technology: The SPH0645 MEMS capsule captures wide-frequency audio with excellent sensitivity and low noise floor.
• Ultra-Compact Design: At just 17 × 13mm, this breakout board fits easily into tight enclosures and portable projects.
• Channel Select Pin: Easily configure the microphone as left-channel or right-channel by connecting the Select pin to power or ground — no extra components required.
• Stereo-Ready: Need stereo audio? Simply pair two modules — one assigned to the left channel and one to the right — for full stereo recording capability.
• Plug & Play Integration: Standard breakout pin layout makes wiring straightforward for beginners and experienced builders alike.
• Durable Construction: Plastic and metal build for reliable everyday use in both prototyping and finished projects.

Specifications

• Model: SPH0645
• Interface: I2S (Inter-IC Sound)
• Microphone Type: MEMS
• Dimensions: 17 × 13mm
• Material: Plastic + Metal
• Compatibility: Raspberry Pi, ESP32, Arduino (with I2S support), and more

What's in the Box?

• 1 × SPH0645 I2S MEMS Microphone Breakout Board Module

For more information on electronics safety and best practices when working with electronic components, visit the U.S. Consumer Product Safety Commission (CPSC).

Frequently Asked Questions

Q: What is the SPH0645 I2S MEMS Microphone Breakout Board Module?

A: The SPH0645 I2S MEMS Microphone Breakout Board Module is a compact digital audio input board featuring a MEMS microphone capsule that outputs clean I2S audio. It is compatible with Raspberry Pi, ESP32, and other I2S-enabled microcontrollers, making it ideal for audio recording, voice recognition, and sound-sensing projects.

Q: How do I select the audio channel on the SPH0645 breakout board?

A: Channel selection is simple — connect the Select pin to the power supply (VCC) to assign the module to the right audio channel, or connect it to ground (GND) for the left audio channel. This makes it easy to use two modules together for full stereo recording.

Q: Can I use two SPH0645 modules for stereo audio recording?

A: Yes! To capture stereo audio, simply use two SPH0645 MEMS Microphone Breakout Board Modules. Assign one to the left channel and the other to the right channel using the Select pin. Both modules share the same I2S data line, making wiring clean and straightforward.

Q: What microcontrollers and single-board computers are compatible with this module?

A: The SPH0645 I2S MEMS Microphone Breakout Board is compatible with any device that supports I2S input, including Raspberry Pi (all models with I2S), ESP32, and certain Arduino boards with I2S capability. It is a popular choice for DIY smart speaker, audio logger, and voice-control projects.