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Green circuit board with buttons, micro-USB port, PIR sensor module and small speaker attached

DIYmall FZ4572 MP3 Voice Recorder Board with PIR Sensor and Speaker

SKU CH-E4GY-HXJ7F

A voice-recorder board with PIR sensor that plays MP3 files from 4 MB internal memory or a TF card, triggers audio on motion detection, and downloads tracks via USB 2.0

  • Audio recording formatMp3 audio
  • Storage media4 MB
  • Host interfaceUSB2.0
  • ConnectionHeadphones: non
  • Battery pack, , , ,
  • DetailsBrand: DIYmall, Format: mp3_audio, Skip_offer: false, Unit_c
  • PIR sensor triggers audio automatically for hands-free alerts in shops or halls
  • 4 MB onboard storage plus TF card slot up to 8 GB for flexible MP3 capacity
  • USB 2.0 Micro-USB appears as a drive for drag-and-drop song loading
  • Five tactile buttons give loop, jog and single-pass playback control
  • 3 W amplifier drives included speaker with volume adjustment for clear prompts

DIYmall FZ4572 MP3 Recorder Board with PIR

The DIYmall FZ4572 is a compact voice recorder board that plays MP3 audio and includes a passive infrared sensor. It offers 4 MB of built-in storage and accepts microSD cards up to 8 GB for additional capacity. A 3 W onboard amplifier drives the supplied speaker for audible alerts or messages. The module connects to a PC via USB 2.0 for file transfer and power.

Makers adding motion-triggered audio to displays

This board suits hobbyists and integrators who need automatic playback when a person enters a 1 to 5 metre detection zone. It is not for users who require wireless connectivity, multi-track recording, or battery-backed operation without adding three AA cells. Projects needing higher fidelity than a 3 W amplifier provides should consider an external audio system.

4 MB internal flash with microSD expansion up to 8

The decisive specification is the 4 MB onboard SPI flash combined with a microSD slot that supports cards up to 8 GB. Files under 4 MB can be copied directly over USB; larger libraries must reside on a card. The board prioritises the microSD card when both storage types are present.

How it compares

Measured against everything we stock in Digital Audio & Voice Recorders, at today’s prices. Recalculated every night.

Price $20.99
Cheaper than about 91% of the 321 comparable items (median $49.99).

Specifications

Product
Brand nameDIYmall
Storage
Storage media4 MB
Audio & video
Audio recording formatMp3 audio
Ports & slots
Host interfaceUSB2.0
ConnectionHeadphones: non
Power
Battery pack, , , ,
In the box
In the box1 X Sounds Recording Module + 1 X Empty Battery Case (need 3PCS AA battery, not included) + 1 X PIR Sensor Module + 1 X Speaker + 1 X Micro-USB Cable

Questions about this item

What power source does the DIYmall FZ4572 board need to operate?

The kit includes an empty battery case that holds three AA cells; those batteries are not supplied, so you must provide them yourself.

Will the PIR sensor trigger playback if I keep my existing passive speaker connected?

The board ships with a 3 W amplifier and a small speaker; the sensor will activate audio through that amplifier regardless of any other speaker you attach.

How can I confirm the motion-triggered playback is working after wiring everything?

Power the board, wait for the sensor to settle, then walk within one to five metres; the speaker should emit the stored MP3 each time motion is detected.

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