

This component is ideally suited to adding dual tone multi-frequency (DTMF) decoding to your project. This detection module interprets the incoming tone and produces a coded output that can be connected to all manner of microcontrollers. RoboticsBD
DTMF is commonly found in touch tone devices such as a phone. The tone is a combination of two separate sine waves that produce a unique signal that can be transmitted or heard. When the module receives the signal it is able to decode it and produce a binary output that can be used in other devices. The module shows the state of the signal through onboard LEDs. RoboticsBD
As an idea, you can connect up a mobile phone via 3.5mm to 3.5mm cable to the module. Dialing into the phone from a second mobile and then using the keypad will produce the tones on the original phone. The tones in the call can then be interpreted by the module, allowing you to control all manner of projects. The pins are suited to standard sockets with a pin pitch of 2.54mm.
Product Images are shown for illustrative purposes only and may differ from the actual product.
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General Specification | |
Main Chip | MT8870DS |
Working voltage | 5V |
Power Consumption | 500mW (MAX) |
Type | MT 8870 DTMF Tone Decoding Module |
Operating Temperature | -40-+85 °C |
Board Colour | Blue |
Dimension (LxWxH)mm | 27 x 25 x 10 |
Weight | 5g |
Shipment Weight | 0.02 kg |
Shipment Dimensions | 3 × 2 × 2 cm |
Please allow 5% measuring deviation due to manual measurement.
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1 x MT8870 DTMF Audio/Speech Decoding Telephone Module.
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The latest price of MT8870 DTMF Audio Decoder Module in Bangladesh is BDT 300 You can buy the MT8870 DTMF Audio Decoder Module at best price from our RoboticsBD or visit RoboticsBD Office.
Please note that the product information provided on our website may not be entirely accurate as it is collected from various sources on the web. While we strive to provide the most up-to-date information possible, we cannot guarantee its accuracy. We recommend that you always read the product labels, warnings, and directions before using any product. |
Product Images are shown for illustrative purposes only and may differ from the actual product. |
Reference: RBD-0291
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Reference: RBD-1021
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Reference: RBD-1022
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Reference: RBD-1324
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Reference: RBD-1553
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Reference: RBD-1582
25 W + 25 W continuous output power at THD = 10% with VCC= 20 V and RL= 8 Ω Wide-range single-supply operation (8 – 26 V) High efficiency (η = 90%) Four selectable, fixed gain settings of nominally 21.6 dB, 27.6 dB, 31.1 dB and 33.6 dB Differential inputs minimize common-mode noise Standby and mute features Short-circuit protection
Reference: RBD-1738
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Reference: RBD-1773
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Reference: RBD-1750
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Reference: RBD-2094
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Reference: RBD-0345
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Reference: RBD-0702
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Reference: RBD-2100
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Reference: RBD-0337
Brand: Waveshare
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Reference: RBD-1809
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Reference: RBD-1417
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Reference: RBD-1164
For Standard LCD 16x2 with Male Header. Press here For Standard LCD 16x2 with Female Header. Press here For Standard LCD 16x2 with I2C adapter board soldered. Press here. For Standard LCD 16x2 with White Background. Press here. For Standard LCD 16x2 with Blue Background. Press here.
Reference: RBD-2220
Good PRINT PACK design, very beautiful. 8 world of the three primary colors (red-green-blue) LED color, scanning control mode. Applicable for various platforms, such as 51 / AVR / AVR / ARM / for Arduino All kinds of platforms.
Reference: RBD-0387
All SD SPI pins output, MOSI, SCK, MISO, and CS. Support 5V/3.3V input. This module can handle 2GB SD cards. Size:4.7 x 3.1 cm. LED indicator. SD Card Holder. RoboticsBD Onboard 3.3V regulator (AMS1117-3.3) for +5v to 3.3V generation. 3.3V is also available as output.
Reference: RBD-1331
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Reference: RBD-1328
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Reference: RBD-2091
Digital signal output 18B20 Temperature Sensor Chip (MY18E20 or DS18b20) Resolution adjustment ranges from 9-12 bytes. Send data via a pin Temperature measurement ranges: -55°C to +125°C, be accurate to 0.5°C.Compatible with DS18B20
Reference: RBD-1336
Onboard Module: ESP8266 wifi module; in AP mode it can connect with 5 Clients at the same time Operating Way: cellphone carried on wifi module; cellphone and wifi module carried on the same router, and use the APP to control relay Transmission Distance : 400m (max) Relay : 5V,10A/250V AC 10A/30V DC Baud Rate: 9600. Diode effusion protection; Short...
Reference: RBD-2099
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Reference: RBD-0699
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Reference: RBD-1947
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Reference: RBD-1582
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Reference: RBD-0409
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Reference: RBD-2087
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Reference: RBD-1769
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Reference: RBD-1670
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Reference: RBD-0832
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Reference: RBD-2098
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