Need to develop a circuit prototype that uses DMTF/ADC/DAC/WiFI – Upwork

Hi there,

I am trying to develop a circuit that receives analog input coming from an RJ11. This signal will be coming from an intercom system that puts in 120VAC. The circuit should be able to detect the RING and OFF-HOOK. Then it should be able to detect any tones coming from the other line as well as converting the audio signal in off hook to a  digital signal that is decent enough in quality to be able to make out what is being said from the other side. All that data has to be able to be delivered to either an ESP32/ESP8266.

I would just like to get the right setup together that meets this criteria in order to build a safe/durable prototype.

Thank you!

Budget: $200

Posted On: June 05, 2021 06:09 UTC
Category: Electronic Engineering
Skills:PCB Design, Telecommunications Engineering, Circuit Design, Digital Electronics, Electrical Engineering, Microcontroller Programming

Country: Canada

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