How High Quality ESP32 Development Boards Vs Cheap ESP32 Clones Comparison Goes? Why Adafruit HUZZAH32 board costs higher than the generic ESP32 boards, like we recently shown some ESP32 projects with? You can simply run a Wi-Fi scan and compare the result with your Wi-Fi scanning capabillity of Samsung smartphone or laptop. Adafruit Huzzah32 Feather is a standard development board with … [Read more...]
What is Network Time Protocol (NTP)
In a previous guide on ESP32, we faced NTP server and Network Time Protocol to get current time for button press event as example. What is Network Time Protocol (NTP)? The Network Time Protocol (NTP) is a standard for synchronizing clocks in computer systems using UDP protocol. NTP is specifically designed to provide reliable time information over variable packet delay networks. In common usage, … [Read more...]
Base64 Encoding on ESP32 Arduino (Base64 for Images)
Base64 images are easy to transmit over the network. Base64 encoding of images for CSS is highly discussed on our blog. Base64 is not new to our regular readers but the current application is different. Here is How to Use Base64 Encoding on ESP32 Arduino. ESP32 lacks sufficient RAM which limits the actual capabillity. You can actually use HTTP POST (like we have shown with IBM Watson IoT … [Read more...]
Users are Not Avoiding Multi Cloud Anymore
The majority of the medium to large companies currently source their workloads and private cloud applications from their own data centers. According to studies, this will change significantly in the upcoming years. For the coming year, the analysts predict a further significant increase in the use of public clouds. Hybrid Clouds would become the rule, and managers in future rely heavily on the … [Read more...]
ESP32 Arduino : Develop Android App to Receive Push Notification
We just want to make sure that our readers can develop an Android app for our IoT examples. We will not go in to many details as there are existing nice guides with Android source code by the others. It is Not Difficult to Develop Android App to Receive Push Notification ESP32 Arduino as There Are Source Code, Easy Web UI Tools. You need not to be an expert Android app developer to just develop an … [Read more...]
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 : [crayon-6a3545ab4a485432908898/] Run … [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...]
How to Configure IBM Watson IoT to Send Email, SMS
Here is How to Configure IBM Watson IoT to Send Email, SMS. It is easy with Node Red. SMS has problems of delivery out of goverment policies and costs something. Guides for Node Red on IBM Watson IoT platform not exactly easy as they are designed to solve complex situations. We want the reader first read our previous two articles - getting started with Watson IoT platform and getting started with … [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...]