What is NodeMCU used for?

NodeMCU is an open source platform based on ESP8266 which can connect objects and let data transfer using the Wi-Fi protocol. In addition, by providing some of the most important features of microcontrollers such as GPIO, PWM, ADC, and etc, it can solve many of the project's needs alone.

Is Z-Wave better than Wi-Fi?

Z-Wave and Zigbee are low-cost wireless networks, similar to Wi-Fi in some ways, but designed to host the stuff you need to run your wireless smart home. It's a bit like Bluetooth, but both are considered more stable, use less data, and have a more extensive range.

Which Arduino is best for IoT?

Arduino UNO-R3 Shield Compatible.

What is MQTT full form?

MQTT (MQ Telemetry Transport) is a lightweight open messaging protocol that provides resource-constrained network clients with a simple way to distribute telemetry information in low-bandwidth environments.

What are IoT communication models?

Communication models used in IoT have great value. The IoTs allow people and things to be connected any time, any space, with anything and anyone, using any network and any service. This model follows a client-server architecture. The client, when required, requests the information from the server.

Which WiFi module is best?

ESP8266. ESP8266 is undoubtedly the most known WiFi module solution in the market. Offering a complete and self-contained WiFi networking solution, it allows users to either host the application or to offload all WiFi networking functions from another application processor.

How many pins are in ESP8266?

ESP8266 NodeMCU has 17 GPIO pins which can be assigned to various functions such as I2C, I2S, UART, PWM, IR Remote Control, LED Light and Button programmatically. Each digital enabled GPIO can be configured to internal pull-up or pull-down, or set to high impedance.

Which is better Arduino or raspberry?

Winner: Raspberry PiThe main languages, especially Python, are very popular languages that have a ton of expansion libraries and lots of support. The Arduino has some choice when it comes to programming languages but it's not a full-fledged computer and that limits the amount and kind of code you can throw at it.

Is GSM or CDMA better?

In summary, neither GSM nor CDMA is technically better. They ultimately provide the same service, and the quality of a network depends on the carrier, not the cellular standard used. Second, GSM phones can be unlocked and switch carriers, whereas CDMA phones are locked to a carrier.

What is TV IoT?

Smart TV stores data from all units in same local network, thus resolving problem of small amounts of memory in these devices. In IoT-environment there are other devices able to store large amounts of information, such as laptops and desktops. The main difference between Smart TV and them is uptime.