How to connect ht9032d to arduino

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mishdev

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I am doing a small project which involves the use of ht9032d connected to the phone line and the output will be connected to the arduino. My phone line gives 48.2V. I have implemented the circuit just as in the datasheet. A slight change is that i am using 275 V capacitor. I am not getting any values when the phone rings from the serial monitor of arduino. Is it because of the capacitor voltage.
 

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Hi,

I have implemented the circuit just as in the datasheet.
Click to expand...
There are several schematics in the datasheet.

A slight change is that i am using 275 V capacitor.
Click to expand...
There are several capacitor in each schematic.
What capacitor do you talk about?

But usually the voltage specification of a capacitor won´t harm it´s funciton.

What telephone line standard do you use?

Klaus
 



please find attached the circuit diagram that i used. The red box is the one that omitted.

In fact, my phone is connected to the modem via the rj11 cable, the service is voip. And the capacitor of 275V is the 0.2uF. I do not know whether the problem lies in my circuitry.
 

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