WT588D-U Voice Record and Playback Module, 32 Mbit SPI Flash
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Prices updated: 13 Oct 2026
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About this product
Voice record and playback module built around the WT588D-20SS controller, with 32 Mbit SPI flash for storing audio. It plays WAV files at 6 to 22 kHz sampling and drives a 0.5 W, 8 ohm speaker directly from its PWM output. It can be triggered by key input, one-wire serial or three-wire serial control, which suits microcontroller and Arduino projects.
Specifications
- Controller chip
- WT588D-20SS
- Flash memory
- 32 Mbit SPI Flash
- Audio format
- WAV
- Sampling rate
- 6 kHz to 22 kHz
- Audio output
- DAC / PWM
- Speaker drive
- 0.5 W into 8 ohm (PWM)
- Control modes
- Key, one-wire serial, three-wire serial
- Module pins
- 28-pin module
Frequently asked questions
How do I control it from an Arduino?
Use one of the listed control modes: key input, one-wire serial or three-wire serial. The listing does not give the pin layout, so check the module's pin definitions and the WT588D documentation before wiring.
Can I increase the recording time?
The listing states the memory can be replaced to obtain different storage lengths. The module ships with a 32 Mbit SPI flash, and changing it requires care with the memory's compatibility.
