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20 Best Nodemcu Esp8266 Communication Methods And Protocols of 2023 – Romance University

After hours researching and comparing all models on the market, Romance University finds out the Best Nodemcu Esp8266 Communication Methods And Protocols of 2023. Check our ranking below.

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FAQ:

Q: What is the ESP8266 used for?

A: The ESP8266 as a microcontroller: the ESP8266 can be used as a normal microcontroller, just like an Arduino 6. Network protocols: Before we start using the Wi-Fi capabilities of the ESP8266, I’ll teach you some of the network protocols involved 7.

Q: How do I send data from ESP8266 to another board?

A: Set the ESP8266 ESP-NOW role. In this example, the ESP8266 receives and sends readings via ESP-NOW, so set the role to ESP_NOW_ROLE_COMBO. Then, register for the OnDataSent callback function. In order to send data to another board, you need to pair it as a peer.

Q: What is the ESP-now protocol?

A: This protocol enables multiple devices to talk to each other without using Wi-Fi. This is a fast communication protocol that can be used to exchange small messages (up to 250 bytes) between ESP32 boards. ESP-NOW is very versatile and you can have one-way or two-way communication in different arrangements.

Q: How many GPIO pins does an ESP8266 have?

A: (*) The ESP8266 chip itself has 17 GPIO pins, but 6 of these pins (6-11) are used for communication with the on-board flash memory chip. Programming There are different ways to program the ESP8266, but I’ll only cover the method using the Arduino IDE.

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