ISD1820 3-5V Voice Module Recording And Playback Module with Microphone and 0.5W Speaker
ISD1820 3-5V Voice Module Recording And Playback Module with Microphone and 0.5W Speaker
ISD1820 3-5V Voice Recording and Playback Module with Microphone & 0.5W Speaker
Add voice recording and playback capabilities to your projects with this compact ISD1820 module from The Tech Depot, Bengaluru. Record up to 10 seconds of audio, store it in non-volatile memory, and play it back on demand - perfect for talking greeting cards, alarm systems, interactive toys, and voice-activated projects. Ships complete with an onboard electret microphone and a 0.5W 8Ohm speaker, so you're ready to go right out of the box. Fast shipping across India, 7-day warranty on manufacturing defects, and dedicated technical support.
Specifications
| Main IC | ISD1820 Single-Chip Voice Record/Playback |
| Operating Voltage | 3.0V - 5.0V DC |
| Recording Duration | 8 - 20 seconds (default ~10 seconds at 6.4 kHz sampling) |
| Sampling Rate | 3.2 kHz - 12.8 kHz (adjustable via onboard resistor) |
| Storage Type | Non-volatile (retains recording with power off, no battery backup needed) |
| Speaker Output | 0.5W, 8Ohm speaker included |
| Microphone | Onboard electret condenser microphone |
| Playback Modes | Edge-triggered (PLAYE), Level-triggered (PLAYL), and direct speaker drive (FT) |
| Control Buttons | 3 onboard push buttons - REC, PLAYE, PLAYL |
| Interface Pins | REC, PLAYE, PLAYL, FT, VCC, GND, SP+, SP (microcontroller-compatible) |
| Board Dimensions | Approx. 37 mm x 54 mm |
| Standby Current | < 1 uA (ultra-low power in standby) |
| Operating Temperature | 40 degreesC to +85 degreesC |
| Origin | Original/Authentic ISD1820 IC |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Key Features
- Single-chip solution: The ISD1820 handles recording, storage, and playback - no external flash memory or codec needed
- Non-volatile storage: Recorded audio is retained even when power is removed; supports up to 100,000 record cycles
- Three playback modes: Edge-triggered (plays full message once), level-triggered (plays only while button is held), and feed-through mode for real-time microphone amplification
- Adjustable recording duration: Change the onboard resistor to trade off between recording length (up to ~20 seconds) and audio quality
- Microcontroller-friendly: All control pins are broken out to headers - drive REC, PLAYE, and PLAYL directly from Arduino, ESP32, Raspberry Pi, or any 3.3V/5V microcontroller via simple HIGH/LOW signals
- Standalone operation: Three onboard tactile buttons let you record and play without any microcontroller at all
- Complete audio chain included: Onboard electret microphone for recording and 0.5W/8Ohm speaker for playback - no extra components required
- Ultra-low standby power: Less than 1 uA in standby, ideal for battery-powered applications
- Wide voltage range: Operates reliably from 3V to 5V, compatible with both 3.3V and 5V logic systems
- Compact form factor: Small PCB footprint fits easily into enclosures, toys, and embedded systems
Why Choose This Module?
- 100% authentic ISD1820 IC sourced from authorized distributors - authentication verified
- 1-5 day shipping, 7-8 day delivery from our Bengaluru warehouse to most of India; same-day delivery within Bengaluru
- Expert technical support included - get help with wiring, code, and integration
- Complete kit with microphone and speaker - no additional purchases needed to get started
- Trusted by thousands of engineers, students, and makers across India
Project Ideas
- Talking Greeting Cards & Gift Boxes: Record a personal voice message that plays when the card is opened using a simple trigger switch
- Security & Alarm Systems: Record a warning message or siren sound that plays when a PIR motion sensor or door sensor is triggered
- Interactive Toys & Props: Build talking dolls, Halloween decorations, or museum exhibit narrators with push-button or sensor-activated playback
- Doorbell with Custom Message: Replace a standard buzzer with a recorded voice greeting - "Welcome!" or any custom announcement
- Voice Memo Recorder: Create a simple standalone voice memo device powered by a coin cell or USB power
Frequently Asked Questions
When will I receive my order?
Products ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.
Is technical support available?
Yes, 24/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.
What is your return policy?
7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Buy ISD1820 3-5V Voice Module Recording And Playback Module with Microphone and 0.5W Speaker Online in India
Purchase the ISD1820 3-5V Voice Module Recording And Playback Module with Microphone and 0.5W Speaker online at The Tech Depot - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on ISD1820 3-5V Voice Module Recording And Playback Module with Microphone and 0.5W Speaker with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy ISD1820 3-5V Voice Module Recording And Playback Module with Microphone and 0.5W Speaker at the best price in India? The Tech Depot offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.