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KIT 153. Audio DTMF Decoder - kitsrus.com
http://kitsrus.com/pdf/k153.pdf
KIT 153. Audio DTMF Decoder The kit will detect DTMF tones from a telephone line or via an onboard microphone and display them on a 16 character, single line display. Up to 32 numbers can be displayed by scrolling the display left and right. There is also a serial output for sending the detected tones to a PC.
DTMF Tone Grabber Kit | KIT 153
https://www.circuitspecialists.com/kit-153.html
DTMF Tone Grabber Kit. Item #KIT 153. $29.95. Product Discontinued. Overview. Detects DTMF tones from a telephone line or via an onboard microphone and display them on a 16 character, single line display. Up to 32 numbers can be displayed by scrolling the display left and right. There is also a serial output for sending the detected tones to a PC.
Audio DTMF Decoder, KIT - Requires Assembly – Alltronics LLC
https://anatekinstruments.com/products/audio-dtmf-decoder-kit-requires-assembly
The KITwill detect DTMF tones from a telephone line or via an onboard microphone and display them on a 16 character, single line display. DTMF is dual tone multi frequency which is the signal to the phone company that you generate when you press an ordinary telephone's touch keys. In the United States and perhaps elsewhere, it's known as ...
ELECTRONIC DIY KITS
https://a1parts.com/newkits/
K153 Kit 153 DTMF Tone Decoder A cheap, simple, audio, 16x1 DTMF Tone Decoder, Kit 153, is now released. It accepts input from a microphone or direct from the phone lines through an audio 600R:600R isolation transformer. $19.50
Amazon.com: dtmf decoder
https://www.amazon.com/dtmf-decoder/s?k=dtmf+decoder
DEVMO MT8870 DTMF Voice Decoder Telephone/Audio Decoder Speech Decoding Module with Vehicle Multi-Frequency Decoder Chip MT8870 $9.99 $ 9 . 99 5% coupon applied at checkout Save 5% with coupon
Amazon.com: Ramsey TT7 DTMF Touch Tone Decoder …
https://www.amazon.com/Ramsey-DTMF-Touch-Tone-Decoder/dp/B0002NRLIO
Runs on 5VDC. Size: 1 1/2" x 7/8" x 2 1/4". Ramsey Mini-Kits are handy, easy-to-build, easy-to-use functional kits that can be used alone or as building blocks in larger, more complex designs. Mini-kits have been used in projects as simple as blinking name badges or as complex as Radio Astronomy Telescopes.
DTMF-Decoder by tino1b2be
https://tino1b2be.github.io/DTMF-Decoder/
DTMF-Decoder API Specifications. The API is designed for use in programs where a DTMF signal needs to be decoded (given it is in a valid form of .mp3 file, .wav file or as an array of sample points; either as double[] (mono) or as double[2][] (stereo)). DTMF Decoder for .wav and .mp3 files or when given an
DTMF-RD Reference Design | Microcontroller | Arrow.com
https://www.arrow.com/en/reference-designs/dtmf-rd-dtmf-decoder-reference-design-kit-based-on-c8051f300-mcu/5aaef97de9571e689631530baa03c240
DTMF-RD. DTMF Decoder Reference Design Kit based on C8051F300 MCU Reference Design using part C8051F300 by Silicon Labs Enlarge. Image 1 / 1. Manufacturer ... Audio Amplifiers Audio Amp Speaker 1-CH Mono 0.7W Class-AB 8-Pin SOIC Tube Buy: MM74HCT164MX onsemi ...
キットの小部屋
http://cba.sakura.ne.jp/kit_menu.htm
PIC DTMF Decoder Kit: ... 153: 高周波 ... Fibre Optic Audio Link Kit / QK26:
Problems with MT8870 DTMF Decoder - Society of Robots
https://www.societyofrobots.com/robotforum/index.php?topic=17678.0
Re: Problems with MT8870 DTMF Decoder. Yes, the cellphone is connected to the circuit by the audio jack. "Tip" and "ring" in the circuit diagram refer to the parts of the audio jack. I have tried using two 100k resistors in parallel for a resistance of 50k.
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