- Home Page /
- Electronics /
- Computer Accessories /
- Computer Components /
- Single Board Computers /
- KOOBOOK 5Pcs MT8870 DTMF Voice Decoder Decodi...
0 ratings
Item #:
19320486
KOOBOOK 5Pcs MT8870 DTMF Voice Decoder Decoding Module Telephone/Audio Decoder Speech Module for Arduino
Item #:
19320486
€ 15
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
0 ratings
Write a review
In stock
Imported from USA store
Order now and get it around Sunday, August 09
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
The MT8870 is a complete DTMF receiver integrating both the bandsplit filter and digital decoder functions.
Buy Now Pay Later
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
Precision Decoding
The KOOBOOK MT8870 decodes DTMF signals with high accuracy, ensuring reliable telephone and audio communication, making it ideal for Arduino projects that require precise speech recognition capabilities.
Versatile Compatibility
Designed to work seamlessly with various Arduino models, this module offers broad compatibility, enabling hobbyists and developers to integrate DTMF decoding into diverse applications effortlessly.
Easy Integration
With a straightforward setup process, the KOOBOOK module allows users to quickly connect and configure for their projects, saving time while enhancing efficiency in development.
Product Details
Who Should Buy?
-
Arduino Enthusiasts
Perfect for hobbyists looking to integrate audio input into their Arduino projects for enhanced interactivity.
-
Telecom Developers
Ideal for developers working on telecom projects that require DTMF signal decoding for automation tasks.
-
Educational Use
Excellent teaching tool for demonstrating principles of signal decoding and audio processing in electronics courses.
-
Casual Users
Not suitable for those with limited experience in electronics and programming who may find it complex.
Product Description
KOOBOOK 5Pcs MT8870 DTMF Voice Decoder Decoding Module Telephone/Audio Decoder Speech Module for Arduino
About This Item
Introducing the KOOBOOK 5Pcs MT8870 DTMF Voice Decoder Decoding Module, the perfect solution for applications such as paging systems, repeater systems, mobile radio, credit card systems, remote control, personal computers, and telephone answering machines. This module is designed to easily view the output status as it comes with an onboard 5 LED indicator. One of the key features of this module is that it is an integrated DTMF receiver which combines both the bandsplit filter and digital decoder functions into one module.
With this, the MT8870 solves a button value and outputs it to the outside, and then the button value of the phone is solved. The basic chip has been the main pin leads, and the PCB size is 26.5 (mm) x24.5 (mm), making it easy to incorporate into any project. Additionally, this module comes with an onboard voice input interface, making it a complete DTMF decoder. When the DTMF signal is received, it splits the signal into a high frequency band and a low frequency band and sends it to the digital decoder to decode the key value.
The key value is then output with four lines (Q1, Q2, Q3, Q4) in a binary manner to the external shared bus. Please ensure that you check the silk screen of the PCB design before use as the VCC and GND pins are anti-use. We highly value all customer opinions to improve our products, and we are always available to provide the best solution in case of any issues. Invest in the KOOBOOK MT8870 voice module, and get all the benefits of the DTMF decoder IC module, voice recognition module, and speech recognition module Arduino all in one package. Purchase this DTMF decoder circuit Arduino module today, and take your project to the next level.
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the KOOBOOK MT8870 DTMF Voice Decoder module used for?
Answer: The KOOBOOK MT8870 DTMF Voice Decoder module is designed to decode Dual-Tone Multi-Frequency (DTMF) signals from telephone systems. It converts these audio signals into binary signals, which can then be processed by microcontrollers like Arduino. This makes it ideal for projects requiring telephone interaction, such as creating remote control systems or interactive voice response systems. -
Question:
How can I connect the KOOBOOK MT8870 module to an Arduino?
Answer: Connecting the KOOBOOK MT8870 DTMF module to an Arduino is straightforward. You need to connect the output pins of the module to the digital input pins on the Arduino. Typically, this involves connecting the DTMF decoder outputs (Q1 to Q4) to specific digital pins, while also providing necessary power connections. This setup allows you to read the DTMF tones generated when a keypad is pressed on a phone. -
Question:
What type of power supply does the MT8870 DTMF module require?
Answer: The KOOBOOK MT8870 DTMF module typically operates on a power supply of 5V, which is compatible with most Arduino boards. When connecting this module to your Arduino, ensure you use a stable power source to avoid fluctuations that can affect performance. Proper voltage levels are crucial for reliable decoding of the DTMF signals. -
Question:
Can I use the MT8870 DTMF module for voice recognition applications?
Answer: While the KOOBOOK MT8870 module is primarily for decoding DTMF tones, it is not designed for voice recognition. Instead, it is best suited for applications where you need to trigger actions based on tones from a phone, rather than recognizing spoken commands. Ideal uses include remote control systems or automated telephone answering systems where specific tones correspond to specific commands. -
Question:
What are some project ideas with the KOOBOOK MT8870 module?
Answer: The KOOBOOK MT8870 DTMF module can be utilized in a variety of projects. For instance, you can build a telephone-based home automation system where you can turn on lights or appliances by dialing specific numbers. Another idea includes creating an interactive voice response system that can respond to user inputs entered via a phone keypad, allowing for more complex interactivity. -
Question:
Is the MT8870 DTMF module compatible with Raspberry Pi?
Answer: Yes, the KOOBOOK MT8870 DTMF module can be used with Raspberry Pi, although the wiring and code will differ from Arduino projects. You would connect the module outputs to GPIO pins on the Raspberry Pi and program it accordingly. This allows you to integrate DTMF decoding in your Raspberry Pi-based projects as well, expanding its functionality in telecom integrated systems. -
Question:
What programming languages can I use to code the MT8870 module?
Answer: Most commonly, users program the KOOBOOK MT8870 DTMF module with C or C++ using the Arduino IDE. However, if you are using it with a Raspberry Pi, Python is a popular choice due to its simplicity and the availability of libraries that facilitate GPIO access. The modular nature of the coding allows for flexible implementations depending on the platform you're using. -
Question:
Does the MT8870 module come with documentation for beginners?
Answer: Yes, the KOOBOOK MT8870 DTMF module typically includes basic documentation or resources online to help beginners. You can usually find example circuits and sample code on the product page or through community projects. This guidance is particularly helpful for those new to electronics and programming, enabling a smoother learning curve. -
Question:
What is the effective range of the MT8870 DTMF module signal?
Answer: The effective range of the DTMF signal for the KOOBOOK MT8870 module depends on the quality of the audio input. Generally, it can correctly decode signals within a few meters of a standard telephone receiver. Ensuring that the audio input is clear and free from interference will enhance the module's accuracies, making it suitable for various applications in residential or small office settings. -
Question:
Where can I buy KOOBOOK 5Pcs MT8870 DTMF Voice Decoder module in Belgium?
Answer: You can purchase the KOOBOOK 5Pcs MT8870 DTMF Voice Decoder module from Ubuy in Belgium. Ubuy offers a convenient shopping experience with various shipping options and product details to help you make an informed decision.
KOOBOOK Single Board Computers Editorial Review
The KOOBOOK 5Pcs MT8870 DTMF Voice Decoder has garnered mixed reviews from users, primarily Consisting of students and hobbyists involved in electronics projects. The product is noted for its ease of use, particularly for educational purposes, as several students have successfully integrated it into final projects. One highlighted project involved using the module to decode "data" commands recorded on a reel-to-reel tape machine for controlling a small robot, showcasing its practical application in creative environments. Users appreciate its functionality, especially when working with Arduino platforms. However, there are some common concerns regarding the product's clarity with documentation. Many have reported that it arrives devoid of detailed specifications or instructions, which can lead to confusion—especially regarding critical components like VCC and GND pin placements. This has prompted users to advise caution and thorough verification before connecting it directly to an Arduino's pin header. Despite these drawbacks, the MT8870 DTMF Decoder proves reliable in terms of performance. It operates effectively across various audio levels and provides feedback through its onboard LEDs, which adds to its user-friendly experience. This module has been effectively employed in projects to control devices using DTMF signals, reinforcing its value for budget-Conscious developers looking for versatile components in their setups. **
Customer Reviews & Ratings
1 customers ratings
-
5 Star
100%
-
4 Star
0%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
Pros
- Easy to use, perfect for educational settings.
- Effective in practical applications (e.g., robotics, Arduino projects).
- Reliable performance with various audio levels.
- Onboard LEDs provide helpful feedback.
Cons
- Lacks comprehensive documentation and specifications upon receipt.
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
CK
Chitra
Verified buyer
“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
K
kund
Verified buyer
“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
OO
Onesi
Verified buyer
“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
SJ
SAO JOHN
Verified buyer
“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Product Price History
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
€ 15
Order now and get it around Sunday, August 09
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Features & Benefits
- Package includes 5 onboard MT8870 complex frequency decoding chips
- Incorporates bandsplit filter and digital decoder functions
- Outputs binary key values through Q1-Q4 pins
- Features a voice input interface and 5 LED indicators
- Main pin leads with PCB size of 26.5mm x 24.5mm
- VCC and GND are silk-screened to prevent anti-use
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.