Dual Tone DTMF V1 Signal Decoding & Encoding Module

DTMF decoding and encoding module with a 3.5MM audio interface, converting tones to ASCII serial output and serial input back to audio.

✓DTMF decoding and encoding
✓3.5MM audio interface
✓ASCII over serial port
✓Audio to serial conversion
✓Serial to audio conversion

●In StockSKU: AS-G3CKMX0T

💻 Product Overview

This module adds dual tone multi frequency (DTMF) decoding and encoding to electronic projects. It converts incoming audio into coded serial output and turns serial input back into DTMF audio, so it can be wired to microcontrollers for tone-based control and signalling.

✨ Key Features

Decoding and encoding: Handles both DTMF signal decoding and encoding in one module.
Audio input: A 3.5MM audio interface receives the incoming audio signal.
Serial output: Received tones are converted to ASCII code and sent through the serial port.
Audio output: Serial ASCII input is converted to DTMF code and sent as an audio signal via the 3.5MM audio interface.
Loopback option: Input and output can be connected together with an audio cable on the module.

🇱🇧 Why Buy from Technodel?

🚚 Delivery Across Lebanon — 1-3 business days to all regions
🛡️ Warranty — as stated on this product page, plus 30-day returns with a full refund
💬 WhatsApp Support — ask us anything before or after you order
💵 Cash on Delivery — pay when the order reaches you

🛒 Frequently Bought Together

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❓ Common Questions

Real questions customers ask about this product — delivery, warranty, payments & compatibility.

Is this product available in Lebanon?▾

Yes — it is available at Technodel with delivery across all of Lebanon: same-day to Beirut, Sour, Tripoli and surroundings, and 1–2 days to every other region.

Where does Technodel source this product?▾

Technodel sources from established suppliers in Lebanon. The product page states its condition and its warranty, and compatible parts are labelled as compatible.

What warranty comes with this product?▾

Warranty terms are stated on each product page. Where a manufacturer warranty applies, warranty support is handled through Technodel.

How can I pay for this product?▾

Technodel accepts cash on delivery, Wish Money transfer, and cryptocurrency (USDT, BTC, ETH). Delivery is a flat $4 anywhere in Lebanon, free on orders of $500 or more.

What are the main specifications of this product?▾

The specifications table on this page lists the key details (model, capacity/speed, dimensions, connectivity and more). If you need a detail not listed, message us on WhatsApp and we'll confirm it for you.

Is this product suitable for my setup?▾

If you're unsure whether this fits your laptop, PC, console or network, send us a message with your setup and we'll confirm compatibility before you order.

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