12ch Dtmf-12 Controller Voice Dialing Control Mt8870 Audio Decoder Modules Brand

US $11.35

China, China
Jan 29th

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MT8870 Audio Decoder Modules Description Description: This decoding module is for mobile and fixed telephone voice dialing decoding function , has 12 channels, output low level interlock(latch) function, and leads to STD signal to use as a microcontroller interrupt signal, very convenient to embed all kinds for mobile and fixed telephoneremote remote control, remote control decoding key value. 12 channels outputs decode mobile and fixed telephone keys (0-9, * #), 12 circuit modules decoded output is a low level control signal, also has 12 outputs status indication for level signal, the output state intuitively understand . Pin 1: VCC ---- DC +5 V power supply pin; Pin 2: GND --- power ground pin; Pin 3: D1 ----- Button 1 decodeding to output low level; Pin 4: D2 ----- Button 2 decodeding to output low level; Pin 5: D3 ----- Button 3 decodeding to output low level; Pin 6: D4 ----- Button 4 decodeding to output low level; Pin 7: D5 ----- Button 5 decodeding to output low level; Pin 8: D6 ----- Button 6 decodeding to output low level; Pin 9: D7 ----- Button 7 decodeding to output low level; Pin 10: D8 ----- Button 8 decodeding to output low level; Pin 11: D9 ----- Button 9 decodeding to output low level; Pin 12: D10 ----- Button 0 decodeding to output low level; Pin 13: D11 ----- Button * decodeding to output low level; Pin 14: D12 ----- Button # decodeding to output low level; Pin 15: STD----- When solving a key value and output to an external, this pin will be changed low from high level, after a period of time and then dropped to low level, use of the cited feet do microcontroller interrupt signal Interlock function (Latch): Interlock, it is maintained effective level signal of output , until next output effective level, then recover to prevous output level. For example: when the press "1" button on phone, D1 output and maintain a valid low-level control signal; when press "2" button on phown , D1 recover to original level, and D2 output and maintain a valid low-level control signal; and so on. Package listing: 1PCS 12CH DTMF-12 Controller Voice Dialing Control MT8870 Audio Decoder Modules Payment 1.We accept Paypal only. 2.Please confirm your ebay shipping address is exact after payment. 3.If your purchased is more than £30.00, please offer your phone number with shipping address. Delivery details 1.All item will be shipped by Airmail post within 1 business days. It takes approximately 15-25 days (USA ,CA,AU,UK,DE).other country 15-35 days. 2.Express by EMS ,it must add 25 USD shipping fee, it takes 5-10 workdays for delivery.If you need other Epxress(DHL,Fedex.UPS etc.),please contact us to talk about shipping fee. 3.Once you purchase, please DONOT leave negative, neutral feedback or open any case if you have not received item in 30 days, because we have mentioned the shipping time repeatedly. Contact us ???? 2 1.We offer retail and wholesale services. We can provide products in accordance with your requirements. If you have any questions or something to consult, please send us ebay message. 2.All messages will be answered within 1 business day. If you do not receive our reply, please kindly re-sent your message and we will reply to you as soon as possible. 3.Our aim is to provide Top Level Customer Service, Business hours are 9am to 6pm Beijing time (+8 GMT), Monday to Friday. Engineered for professional eBay sellers! On Oct-15-14 at 02:48:12 PDT, seller added the following information: