Text and video chat have become important ways of communicating via smartphone. Even just a few years ago, not even 50% of smartphone users used mobile applications for video calls on a regular basis. Unfortunately, till today commonly the smartphones are not judged for their ergonomics and features for text chat and video chat. The differences between various smartphones not only limited to the … [Read more...]
ESP32 Deep Sleep : Push Button Message to IBM Watson IoT
We already demonstrated how to send message to IBM Watson IoT platform using ESP32 Arduino with just a button press. We have several non-IoT guides on pushbutton with Arduino including simple basic Arduino Blink LED With Pushbutton. Learning various logics with pushbutton will hugely help the beginners as pushbutton from the binary way of thought is a basic sensor to convey 0 or 1. Working with … [Read more...]
M5Stack (ESP32 Arduino) : Modular, Stackable, Wearable IoT Platform
The M5Stack is ESP32 Arduino by heart. It is a modular, stackable, wearable IoT platform for development which is obviously Open Source. There are many stackable ESP32 or other 32 bit Arduino compatible prototyping boards. The big difference of M5Stack with them is that it has an enclosure, display, pushbuttons, microSD card slot, USB-C, loudspeaker, and extension connectors. Official website … [Read more...]
ESP32 With DHT11 Deep Sleep : Part 1
Here is part of ESP32 with DHT11 deep sleep guide explaining the basic behind code. Our DOIT ESP32 board (which we commonly use in examples on this website), not energy efficient for deep sleep. However, it works. We already can connect normal Arduino UNO with DHT 11, with ESP32 Arduino and also we can use the setup to send data to IBM Watson IoT. ESP32 offers us deep sleep mode for power … [Read more...]
What is Infrasound? How Human Reacts to Sub 20Hz Infrasound?
Sub 20Hz sounds are infrasound and commonly we need special electrical system to pick up the sounds of that range. Infrasounds are low frequency sound waves. They are both mechanical vibrations and acoustic oscillations. They are usually below the threshold of sounds perceptible to the human ear (between 0 Hz and 16 to 20 Hz approximately) At lower frequencies, for physiological reasons, they are … [Read more...]
Scope of ESP32 in Commercial IoT Products
Can ESP32 used in Commercial IoT products? Yes, ESP32 has modules and SoC to fit your production need. However, Arduino IDE is not for production. The reason we switched our projects from genuine Arduino to ESP32 Arduino is to broaden the scope. Our IoT guides are around IBM for highest compatibility. Node-red is the most popular IoT control software, which is very easy to use and many tutorials. … [Read more...]
What Are the Advantages of EPP32 Over Arduino UNO?
The ESP32 is a cheap Wi-Fi module (and also ESP32 used to indicate board) which perfectly suited for DIY projects in the Internet of Things (IoT). When we are using ESP32 based boards with Arduino IDE (like, in our setup of Arduino UNO IDE guide) then the ESP32 is becoming "Arduino compatible" board. It is not what is supported by official Arduino by any means. The Arduino UNO uses a 8-bit … [Read more...]
ESP32 Arduino OLED Display Example (I2C)
In our previous guide on ESP32 Arduino With LCD, we used an I²C module. OLED displays with I²C are sold as one unit. These days, they does not cost huge. In our earlier guides we have explained about different protocols, interfaces like I²C, Serial Peripheral Interface. Another relevant tutorial is breadboard power supply module). We are using a 0.96 inch SSD1306 OLED display (blue/white) … [Read more...]
ESP32 Arduino With LCD : Connection & Code (I2C, LCD 1602A)
1602A LCD and I²C module are quite cheaper and easy to setup and code. Earlier, we have published guides on how to wire and setup 1602A LCD with Arduino UNO (which have not used the I²C module) which occupies 8 Pins on your Arduino. We have also explained about different protocols, interfaces like I²C, Serial Peripheral Interface and discussed interfacing 1602A LCD display using I²C Serial … [Read more...]
ESP32 Arduino Wi-Fi Access Point with Wi-Fi Connection (Station)
It is possible to setup ESP32's Wi-Fi to access point and station. ESP32 can connect to another hotspot and share the connection. An access point (AP) is a networking hardware device which allows other Wi-Fi devices to connect to a network. Some basic theory required to know for making basic code better. An AP is different from a hotspot. Hotspot is the physical location (and the device) … [Read more...]
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