Computer and Internet

Computer and Internet is catchall section of core computing categories including Cloud Computing, Digital Photography, Virtualization, Networking, Protocols and Others' which are not otherwise more subcategorized. Here also you will get unique articles and news on computer hardware, Software, Networking and Protocols.

How to Install Mosquitto MQTT Broker/Server on Ubuntu Cloud Server

Here is How To How to Install Mosquitto MQTT Broker/Server on Ubuntu Cloud Server So That You Need Not to Depend on Third Party MQTT Broker. To connect to a command line on your server instance you will need to use SSH with `root` privilege. Update, upgrade and install the required packages from Ubuntu repo : # sudo apt update sudo apt install mosquitto # install the … [Read more...]

ESP32 Arduino : Get Time & Date From NTP Server

Here is ESP32 Arduino How to Get Time & Date From NTP Server and Print it. This is upgrade of the projects where an event requires a timestamp, for example think of LED turning on after push button click or HTTP POST on button click. These events better to have a timestamp. Of course most robust way of adding timestamp using a real time clock (RTC) module with ESP32. However, RTC modules … [Read more...]

Arduino ESP32 : HTTP(S) POST Request to IBM Watson IoT on Button Press

Here is How to Send an HTTP POST Request to IBM Watson IoT on Button Press from Arduino ESP32. The basic is dependent on our earlier two separate examples, first is the set of working examples of codes for IBM Watson IoT and second is the example of using a button press to make a LED turn on for a pre-defined time. Earlier, we had another example of using Blynk to send a basic push message on a … [Read more...]

Arduino ESP32 : Turn on LED on Button Press and Turn Off After a Period

Here is How to Turn on LED on Button Press and Turn Off After a Period on Arduino ESP32. For this guide, we will use the onboard boot button and the onboard LED of ESP32. You can not use the EN button of ESP32 for this purpose. The onboard boot button is attached to Pin 0 and the onboard LED of ESP32 attached to Pin 2. This guide has more usage on advanced projects of IoT. Instead of LED, … [Read more...]

ESP32 Arduino and TM1637 Seven Segment LED Display

ESP32 Arduino means Arduino IDE configured to use ESP32 like Arduino, the guide which we already have. TM1637 Seven Segment LED Display is Popular Thing in Arduino Prototyping World. Here is Some Words About Using TM1637 With ESP32 Arduino. Apart from IoT developments, it is important to port all the popular modules, kits to ESP32. TM1637 is a driver IC which has pathetic documentation. It is … [Read more...]

ESP32 Arduino : Base Board, Battery and Battery Charger

Here is Ideas Around Base Board, Battery and Battery Charger for ESP32 Arduino for Prototyping. It is not easy to place ESP32 on breadboard and use all the pins. The form factor of WROOM ESP32 board we are using is pathetic. Adafruit Huzzah32 is beautifully designed but not easily available in all the countries. Huzzah32 is not good investment unless the boards/wings are easily available. … [Read more...]