1 5

Generic

MT8870 DTMF Decoder Module Telephone Audio Speech Decoding Module For Phone Control Interface Module For Arduino - RS2625

MT8870 DTMF Decoder Module Telephone Audio Speech Decoding Module For Phone Control Interface Module For Arduino - RS2625

RS2625

40 in stock

Rs. 96.00
Rs. 96.00
Sold out
Shipping calculated at checkout.

Note: In case you receive a damaged or faulty product, please return it in the original box with all foam and packaging. Returns will not be accepted if further damage occurs due to improper packing.

If you order a product that is currently in Preorder, and the price of that item increases in the future, you will be required to pay the difference in price.

For refund/return/replacement, call us at +91 95995 94520 or email us at support@rees52.com

Delivery Time

  • Delivery time with the Express Shipping option is 2-3 working days, and with the Standard Shipping option is 5-6 working days. It varies based on location, reliant on courier services.

  • Delivery time if the order item is on Preorder Status is 15-20 working days.

COD (Cash on Delivery)

  • For COD you have to pay extra charges of Rs 350/- before the shipment. (We will share the company QR Code, UPI ID or Account details for the same)

The REES52 Promise

We want you to build, not worry. Here is exactly what happens if something goes wrong with your order.

Dead on arrival or defective? We replace it.

If your item is dead on arrival or has a manufacturing defect, tell us within 7 days of delivery. Email support@rees52.com with your order number and a short video or a couple of photos showing the problem. Our team will get back to you within 24 hours and arrange a free pickup from your doorstep - you never pay return shipping for a defective item. Once we verify the issue, your replacement ships out right away. If the item is out of stock, you get a full refund instead.

Refunds, with real timelines.

  • Approved refunds go back to your original payment method within 6-7 working days.
  • Missing item in your package? Tell us within 7 days with photos of what arrived and the parcel label. Once confirmed, the refund for the missing item reaches you in 2-3 working days - or we ship the missing piece free, your choice.
  • Every refund comes with a reference number by email or WhatsApp, so you can track it with your bank instead of chasing us.

Wrong item or not as described?

Email us your order number and a photo of what you received. We arrange the return pickup, and ship the correct item as soon as the return is on its way. Prefer your money back instead? That is fine too - full refund, same 6-7 working day timeline.

About lead times on some products.

A few items on rees52.com are sourced from our overseas partner warehouses and are not sitting on our shelf. Those products show a lead time of about 20-25 working days on the product page, before you pay. If you order one, we keep you posted as it moves. Changed your mind while waiting? You can cancel any time before dispatch and get a full refund within 6-7 working days. No cancellation fee, no questions.

Talk to a human.

Email support@rees52.com or call/WhatsApp +91 95995 94520, Monday to Saturday, 10:30 AM to 7:00 PM. Real people, order number in hand, actual answers.

View full details

Description:

This DTMF (Dual-Tone Multi-Frequency) decoding module is your gateway to adding sophisticated, touch-tone control to your projects. Imagine the possibilities: by interpreting incoming DTMF tones, this module generates a precise coded output, ready to interface seamlessly with a wide range of microcontrollers.

Commonly found in everyday touch-tone devices like telephones, DTMF relies on a unique system. Each tone is a combination of two distinct sine waves, producing a signal that can be transmitted wirelessly or heard audibly. When this module receives such a signal, it expertly decodes it, translating the tone into a binary output that your other devices can understand and act upon. 

Specifications:

  • Operating Voltage: 5VDC
  • Chip: MT8870DS
  • Power Consumption: 500mW (MAX)
  • Operating Temperature: -40-+85 °C
  • Board Color: Blue

Features:

  • Onboard voice input interface
  • Low power consumption
  • Internal gain setting amplifier
  • Onboard LED, it is very convenient to check the output state.
  • Adjustable guard time
  •  Central office quality
  • Onboard 3.5mm input interface
  • 5 Channel interface
  • On-board MT8870 frequency decoder chip
  • Power-down mode
  • Inhibit mode
  • Onboard audio input interface
  • Onboard LED lights for output state indicationComplete DTMF Receiver.
  • Does not require external circuits or wiring; it can be inserted directly into the UNO/MEGA2560/DUE board to use.
  • 12-Digital outputs decode mobile and fixed telephone keys (0-9, * #). Also, another 4 Digital outputs (ABCD) can use “DTMF Dial” for Software control.

Package Included:

1 x MT8870 Voice Decoding Module