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Thanks to 3CX, we can setup a CRAZY awesome phone system on a Raspberry Pi 4. Get 3CX for free here: http://bit.ly/3cx_free ...

The DFRobot Gravity Offline Voice Recognition Module allows for super fast and easy setup of voice commands for an arduino ...

This project include step by step creating PCB for receive interface / module for Arduino Caller ID (CID) is the generic name for a ...

Big Telco will hate this... This video explores Walter, a new open-source cellular board that combines GPS, LTE-M, NB-IoT, WiFi, ...

This is the start of converting the original ESP8266 telephone central office project over to using ESP32 to: -allow more GPIO ...

High quality PCB prototypes: https://www.pcbway.com PCB and Project here: http://bit.ly/4769EZv I've made some ESP32 ...

In this video, I am showing how to interface the sim900a mini-module with Arduino. It also shows how to make calls using this ...

How are these legal? Explore DIY trackers, routers, and guides → https://buildwithparallel.com **Product Links** RakWireless ...

In this test, we tried to read temperature from a remote SIP phone.

Pulse To Tone Converter for old Rotary phone to use VoIP telephony. It connects to line without modifying old phone.

Interaction with Arduino Board and GSM using Microsoft Visual Studio C# Share your ideas!! Comment your suggestions!

This is the first in a series of videos explaining how to use "Asterisk" (https://www.asterisk.org/) open source communications ...

PCBWay Supports High Precision Advanced PCBs: https://www.pcbway.com/ The KS0835F subscriber line interface module ...

This is an Arduino-based Blue Box that supports five different signalling systems, plus a Red Box mode that can play multiple coin ...

A well-kept secret of the ESP32 is its extended audio capabilities because it is hard to use. Luckily, I found a library and a toolset ...

IoT applications have a lot of potential for converting these noises into digital data. These new modules are an excellent option for ...

Building a modern beeper from an ESP32 Adafruit Feather and a custom 3D printed shell. I created a true on-call pager for ...

Free Altium Designer Trial: https://altium.com/yt/greatscott! Previous video: https://youtu.be/W_hIVtcx6CA Home Assistant video: ...

Learn the real differences between Arduino Uno vs ESP8266 vs ESP32 in this full beginner's guide. I'll show you how to install ...

We've made a Walkie-Talkie using the ESP32. Audio data is transmitted over either UDP broadcast or ESP-NOW. So the ...