ESP32 IoT Future Board Kittenblock Programming Tutorial 07 - WIFI

ESP32, Future Board, Internet of Things, Kittenblock, kittenbot, Tutorial
October 27, 2021
Anny Xu

The wireless WIFI is the advantage of the Future board, we can get a lot of information through the internet, and do more things such as the Internet of things and calling the AI interface to realize AI-related functions.

Programming Blocks (Pogram with Kittenblock)

WIFI Connection

Block	Introduction
	Connect to the WiFi with specified password and name
	Check whether the WiFi connection is successful, if success, it returns true, if do not success, it returns false
	Get various data of SIFI (IP, gateway, DNS), and return a string of characters
	Obtain various data of wifi (IP, gateway, DNS), and return the data of a single option
	Get the mac address of the WIFI module
	Disconnect WIFI

MQTT Server

Block	Introduction
	Connect to the MQTT server (standard MQTT protocol)
	Log in to the MQTT server with the private key
	Subscribe to the topic
	Get messages from the topic
	Send messages to the specified topic
	Get MQTT messages

OneNet and NTP

Block	Introduction
	Set the location of the internet time (GMT+8 is Beijing time)
	Get the year (month, day, hour, minute, second, microsecond) of the current time
	Set the ID and APIkey of the OneNet device
	Upload data to OneNet
	Read the value of the data on the server

Wireless radio

Block	Introduction
	Initialization
	Set the channel number
	Get the message from the wireless radio
	Send wireless messages

Example

📋: Board-to-board wireless radio communication

Use this function to easily complete projects such as controlling robots remotely. The 2.4g wireless communication of Future board cannot transfer data with the wireless communication of Micro:bit, because they have different protocol and frequency band.

It supports sending and receiving Chinese content.

Sending end program

1.1 Sending end

Receiving end program

1.2 Receiving End

📋: WIFI Connection & WIFI configuration information

WIFI Connection & WIFI configuration information

📋: MQTT Communication

Kittenbot provides you a free MQTT server, you can use it after registration https://iot.kittenbot.cn/

MQTT Communication

📋: Future board MQTT connects to the local server of the computer

📎Future board MQTT connects to the computer local server.zip

Open the local IoT server, click the IoT button, open the local server, note down the IP address of your computer server, and fill in the program later

Future board MQTT connects to the local server of the computer 1