Else module will be stuck into a reset loop. There should not be any load connected to the GPIO pins when the ESP module is powered on. SMART CONVERTER BOX DRIVERDue this low current we cannot drive any decent loads like a relay directly from the pins, a driver circuit is mandatory.The maximum sink current of the GPIO pins are 20mA.The maximum source current of the GPIO pins are 12mA.The ESP8266-01 module has two GPIO pins which are the GPIO0 and GPIO2 pins respectively.But care should be taken while using the GPIO pins of a ESP module, they are discussed below. Since the ESP8266 Modules comes with inbuilt GPIO pins the project has come down to be fairly simple. In order to drive the relays we have used a BC547 NPN transistor which is switched by the GPIO pins of the ESP modules. In order to toggle the AC loads we have used an electromagnetic relay, this relay requires 3V to energize and can withstand up to 5A flowing through the Common (C) and the normally open (NO) pin of the Relay. Hence, a LM317 Variable voltage regulator IC is used to regulate 3.3V for the ESP modules. Since our ESP8266 modules work on 3.3V we have to convert the 5V to 3.3V. The Schematics consists of an AC to DC converter module whose output will be 5V and 700mA. The complete Schematic of this project is shown below: AC-DC converter module (5V/700mA or above).The hardware required for this project is listed below: If not visit Getting Started with ESP8266 WiFi Transceiver (Part 1) and Getting Started with ESP8266 (Part 3): Programming ESP8266 with Arduino IDE and Flashing its Memory tutorials before proceeding. This tutorial assumes you have experience is using ESP8266 modules with Arduino IDE. Once you understand the concept you can extend the number or AC loads by using advanced ESP modules and also increase the power rating of the loads by using high rating relays. This project is capable of toggling any two AC loads whose current rating is not more than 5A or ~800Watts. SMART CONVERTER BOX HOW TOIn this project let us learn how to make a Junction Box whose switches can be toggled remotely using your Phone or Computer with active internet connection. Toggling an AC load from the comfort of our chairs or bed of any room without reaching for the switch in another room sounds cool doesn’t it!!, Thanks to the ESP8266 modules this idea can be easily implemented with subtle knowledge on electronics. Follow the instructions that come with your Converter Box for how to tune analog channels.įor instructions on how to connect your converter box if it does not include an analog pass-through feature or for instructions on connecting your converter box to other components such as a VCR, go to or contact the FCC by calling 1-888-CALL-FCC (1-88) voice or 1-888-TELL-FCC (1-88) TTY.Home Automation has always been inspiring projects for most of us. If your Converter Box includes an "analog pass-through" feature, this set up will also allow you to receive any stations that still broadcast in analog in your area. Using the remote that comes with your Converter Box, follow the on-screen set-up guide to scan for available DTV channels, and begin enjoying the benefits of Digital Television! SMART CONVERTER BOX TVUsing the instructions that come with your Converter Box, tune your TV to channel 3 or 4. Step Plug the power cords on your Converter Box and TV into a power outlet, and turn on your TV and Converter Box. Plug the other end into the “Antenna In (RF)” port on your TV. Step Using the coaxial wire that comes with your Converter Box, plug one end into the “Out To TV (RF)” port on the Converter Box. Step Plug the existing coaxial wire into the “Antenna In (RF)” port on your Converter Box. Step Unplug the existing coaxial antenna wire from your TV “Antenna In (RF)” port. Before you begin the installation of the converter box, you should unplug your TV. Your new converter box will come with a coaxial wire and a remote control. Supplies: You will need your analog TV, the antenna you have been using (indoor or outdoor), and the coaxial wire that currently connects your antenna to your TV (as pictured on the right). This guide will help you prepare so that when you purchase a converter box you will know what to expect and whether you may need help setting it up. This guide describes the installation of a digital-to-analog converter box with your current antenna and analog TV.
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