Looking for Isd1820 Module? ISD1820 Sound/Voice Board Recording Module is available at Zbotic with fast shipping across India.
ISD1820 Sound/Voice Board Recording Module
The ISD1820 Recording Module Voice Board is an uncomplicated and practical addition for incorporating voice recording and playback capabilities into your projects. It can be operated using the three push-buttons on the board or by interfacing with a microcontroller.
Equipped with a built-in microphone and an 8 Ohm speaker jack, the ISD1820 chip is capable of recording a single voice message up to 10 seconds in length, storing it in its internal analog flash memory to ensure the message is retained even without power.
Furthermore, the module includes header pins for straightforward microcontroller interfacing, allowing message playback control via a single digital pin. It features buttons for recording, playing the entire message, or playing a specific part of the message.
Features
An easy to use 10 seconds of voice recording.
High-quality, natural voice restored.
Can be used as a propaganda module.
With looping, jog playback, single pass play function.
Available single-chip control.
This module can directly drive a small speaker 8 ohms 0.5W.
Audio recording control mode: the key to control or microcontroller, IO has drawn the line of control.
Specifications:
| IC Chip | ISD1820 |
|---|---|
| Operating Voltage (VDC): | 3 ~ 5 |
| PCB Size ( L x W ) mm | 55 x 38 |
Package Includes
1 x ISD1820 Recording Module Voice Board
Manual
ISD1820 Sound/Voice Board Recording Module Overview
The ISD1820 Sound/Voice Board Recording Module is a compact solution for capturing and playing back short audio messages in your DIY electronics projects. Using the onboard ISD1820 chip and microphone, it records up to 10 seconds of voice or sound into non-volatile analog flash memory and plays back via an 8 Ω speaker jack or microcontroller control.
Key Features of ISD1820 Sound/Voice Board Recording Module
- Operating voltage: 3 V to 5 V DC, compatible with 3.3 V and 5 V systems
- Onboard electret microphone for direct sound capture
- Record and playback up to 10 seconds of voice or audio
- Three push-buttons for REC, PLAYE (single play) and PLAYL (loop play)
- 8 Ω speaker jack and header pins for easy connection to microcontrollers
- Non-volatile analog flash memory retains recording without power
- Board dimensions: 54 × 38 mm, durable PCB design
- Genuine product with fast shipping from Zbotic across India
Applications and Use Cases
- Custom voice prompts in security or doorbell systems
- Audio alerts for alarms, timers or reminders
- Interactive toys and educational kits with recorded messages
- Robotics projects requiring speech feedback
- DIY voice-enabled greeting cards or gift boxes
- Prototype announcements in model railways or exhibitions
How to Use ISD1820 Sound/Voice Board Recording Module
Connect the module’s VCC and GND pins to a 3–5 V supply, attach an 8 Ω speaker to the SPK+ and SPK– pads, and use the three onboard buttons to record (REC) and play (PLAYE or PLAYL). For microcontroller control, wire the REC and PLAY pins to digital outputs and pull them low or high according to the module’s datasheet timing to trigger recording or playback.
Why Buy from Zbotic?
- Genuine Products: All items sourced from authorized distributors
- Fast Shipping: Orders ship within 24 hours with tracking (non backordered products)
- Free Shipping: Free delivery on qualifying orders
- COD Available: Cash on Delivery, UPI, cards, net banking
- Technical Support: Expert help for setup and troubleshooting
- Easy Returns: Hassle-free replacement for defective products
Frequently Asked Questions
How long can the ISD1820 record a message?
The ISD1820 module can record up to 10 seconds of audio in a single message, stored in its internal analog flash memory even when powered off.
What supply voltage is required for this module?
This board operates reliably between 3 V and 5 V DC. You can power it from a 3.3 V microcontroller rail or a standard 5 V USB supply.
Can I control recording and playback with an Arduino?
Yes. Use the header pins labeled REC and PLAY to interface with Arduino digital outputs. Pull REC low for the desired record duration, then pull PLAYE low to play back your message once.
Technical Specifications
| Model | ISD1820 |
|---|---|
| SKU | AI0236 |
| Weight | 0.016 kg |
| Availability | Out of Stock |
Applications & Use Cases
The ISD1820 Sound/Voice Board Recording Module is a versatile sound sensor used across a wide range of applications including electronics projects, DIY builds, prototyping, and educational experiments.
Common use cases:
- Integrating into a custom electronics project
- Learning and experimenting with circuits
- Replacing or upgrading components in existing setups
This product is ideal for electronics enthusiasts, engineers, and students.
Technical Tip: Always verify voltage and current requirements before connecting to your circuit. Check datasheets for detailed specifications and pin configurations.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components

Aditya Mukherjee –
Great ISD1820 Sound/Voice Board Recording. Using it in my smart agriculture system. Reliable measurements every time.
Virupaksha Bhadrannavar (verified owner) –
Good Quality
Nandini Panchal (verified owner) –
Very satisfied with this ISD1820 Sound/Voice Board Recording. Library support is good and it’s easy to interface.
Ankit Ghosh (verified owner) –
Good ISD1820 Sound/Voice Board Recording. Works as described. Calibration needed some patience but results are good.
Dev Panchal (verified owner) –
Nice ISD1820 Sound/Voice Board Recording. Readings are mostly accurate. Good enough for my hobby project.
Kavya Tandon (verified owner) –
Good quality ISD1820 Sound/Voice Board Recording. Some variation in readings but within acceptable range.
Ravi Mukherjee (verified owner) –
Perfect ISD1820 Sound/Voice Board Recording for my automation project. Integrates seamlessly with my microcontroller.
Naveen Krishnan (verified owner) –
Superb ISD1820 Sound/Voice Board Recording! Using it in my environmental monitoring system. Very reliable data.
Atharv Nayak (verified owner) –
Superb ISD1820 Sound/Voice Board Recording! Using it in my environmental monitoring system. Very reliable data.
Saurabh Dhawan (verified owner) –
This ISD1820 Sound/Voice Board Recording is a must-have for sensor projects. Plug and play with Arduino.
Naman Saxena –
Perfect for my weather station. This ISD1820 Sound/Voice Board Recording gives consistent readings day and night.
Pooja Banerjee –
Good quality ISD1820 Sound/Voice Board Recording. Some variation in readings but within acceptable range.
Aditi Gill (verified owner) –
Outstanding accuracy from this ISD1820 Sound/Voice Board Recording. Compared with a professional instrument, readings match closely.
Farhan Kulkarni (verified owner) –
Great ISD1820 Sound/Voice Board Recording. Using it in my smart agriculture system. Reliable measurements every time.
Deepak Vohra –
Excellent sensitivity and range on this ISD1820 Sound/Voice Board Recording. Works better than I expected.
Raghav Chopra (verified owner) –
Decent ISD1820 Sound/Voice Board Recording for the price. Requires proper wiring but works well once set up.
Krishna Kumar (verified owner) –
This ISD1820 Sound/Voice Board Recording is excellent for the price. My data logging project is working perfectly now.
Sakshi Garg (verified owner) –
Excellent ISD1820 Sound/Voice Board Recording! Readings are accurate and consistent. Perfect for my project.
Divyansh Mehta (verified owner) –
Love this ISD1820 Sound/Voice Board Recording. Response time is fast and readings are stable.
Paras Vyas (verified owner) –
Bought this ISD1820 Sound/Voice Board Recording for my college project. Accurate readings, easy to code. Very happy!