Description: 1. The ISD1820 Voice Module is a compact, self-contained solution for voice recording and playback in IoT projects. 2. It operates on a wide voltage range of 3-5V, making it compatible with various power sources. 3. This module features an integrated microphone and 0.5W speaker, eliminating the need for additional components. 4. The ISD1820 offers high-quality voice recording up to 8 seconds and playback functionality. 5. Users can interface this module with microcontrollers or other IoT devices using its simple Serial Peripheral Interface (SPI) communication protocol. 6. With an easy-to-use API, the module allows for seamless integration into custom IoT applications. 7. This voice recording and playback module supports both WAV (8bit/11kHz mono) and ADPCM audio formats. 8. The ISD1820 provides onboard storage capacity to save recorded messages, eliminating the need for external memory. 9. Its unique design offers low power consumption, making it suitable for battery-powered I
| Specification | Details |
|---|---|
| Module Type | Single-Chip Voice IC (ISD1820) |
| Voltage Range | 3-5V |
| Recording Time | Up to 60 minutes (dependent on battery life) |
| Audio Format | Analog mono |
| Sampling Frequency | 22 kHz |
| Microphone Type | Built-in electret microphone |
| Speaker Power | 0.5W (built-in speaker) |
| Memory Capacity | Up to 60 minutes of recording time |
| Interface | Analog audio I2C or SPI interface |
| Dimensions | Appx. 3cm x 1.5cm |
| Weight | Approximately 10g |
