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GitHub - LintangWisesa/ESP32_Favoriot: A simple IoT test, uploading analog value of a potentiometer from ESP32 board to Favoriot

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A simple IoT test, uploading analog value of a potentiometer from ESP32 board to Favoriot - LintangWisesa/ESP32_Favoriot

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references:

1. https://www.youtube.com/watch?v=pFlpfQpe6vI&t=801s

2. https://platform.favoriot.com/tutorial/v2/#send-data-from-a-device

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Ultrasonic code to  check whether can run or not

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Ultrasonic code to  check whether can run or not

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https://www.silabs.com/developers/usb-to-uart-bridge-vcp-drivers?tab=downloads

Select CP210x Windows Drivers

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can send data ady

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Debugging...

Different type of coding compare with potentialmeter that one

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Data Logging Using Favoriot IoT Platform Using ESP32

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Able to send data to FavorIot

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ArduinoJson 7 has just been released. See what's new. ×

The best JSON library for

Arduino UNO

Arduino Leonardo

Arduino Mini

Arduino Micro

Arduino Mega

Arduino Zero

Arduino Due

Arduino Yún

Arduino M0

Arduino MKRZero

Arduino MKR1000

ESP8266

ESP32

Teensy

Intel Galileo

Intel Edison

MSP430

RedBearLab BLE Nano

RedBearLab BLE Mini

WeMos D1

Atmel Studio

Energia

IAR Embedded Workbench

PlatformIO

Visual Micro

MCUXpresso

Nios II

Quickstart

Serialization

JsonDocument doc ; doc [ "sensor" ] = "gps" ; doc [ "time" ] = 1351824120 ; doc [ "data" ][ 0 ] = 48.756080 ; doc [ "data" ][ 1 ] = 2.302038 ; serializeJson ( doc , Serial ); // This prints: // {"sensor":"gps","time":1351824120,"data":[48.756080,2.302038]}

See Serialization example and Serialization tutorial.

Deserialization

char json [] = "{ \" sensor \" : \" gps \" , \" time \" :1351824120, \" data \" :[48.756080,2.302038]}" ; JsonDocument doc ; deserializeJson ( doc , json ); const char * sensor = doc [ "sensor" ]; long time = doc [ "time" ]; double latitude = doc [ "data" ][ 0 ]; double longitude = doc [ "data" ][ 1 ];

See Deserialization example and Deserialization tutorial.

Features

Intuitive Syntax

ArduinoJson has a simple and intuitive syntax to handle objects and arrays.

Fetch data:

Set data:

Serialize and Deserialize

ArduinoJson supports both JSON serialization and deserialization.

Read JSON:

...modify:

doc [ "last_modification" ] = time ();

...write back:

Input filter

ArduinoJson can filter large inputs to keep only the fields that are relevant to your application, thereby saving a lot of memory.

Parse From Stream

ArduinoJson can parse directly from an input Stream or std::istream

Parse input from the serial port:

...an Ethernet connection

...or a Wifi connection

It also supports custom reader types.

Print to Stream

ArduinoJson is able to print directly to a Print or std::ostream

Send the JSON to the serial port:

...an Ethernet connection

...or a Wifi connection

It also supports custom writer types.

Indented output

ArduinoJson can produce compact:

...or prettified documents:

Flash Strings

ArduinoJson works directly with strings stored in program memory (PROGMEM)

You can use a Flash String as JSON input

...as a value

doc [ "cond" ] = F ( "Sunny" );

...or as a key

float temp = doc [ F ( "temp" )];

String deduplication

ArduinoJson deduplicates strings in the JSON document.

When you have several identical keys or values, the JsonDocument only stores one of each.

In practice, this feature reduces memory consumption by 20-30%.

See this article for details.

Implicit or Explicit Casts

ArduinoJson supports two coding styles, with implicit or explicit casts

Implicit cast:

Explicit cast:

Unicode

ArduinoJson can decode UTF-16 escape sequences to UTF-8.

NDJSON, JSON Lines

When parsing a JSON document from an input stream, ArduinoJson stops reading as soon as the document ends (e.g., at the closing brace).

This feature allows reading JSON documents one after the other; for example, you can use it to read line-delimited formats like NDJSON or JSON Lines.

Efficient

Compared to the "official" Arduino_JSON library:

ArduinoJson is twice smaller,

ArduinoJson runs almost 10% faster,

ArduinoJson consumes roughly 10% less RAM.

See in-depth comparison

MessagePack

In addition to JSON, ArduinoJson supports MessagePack, an alternative serialization format.

MessagePack is like a binary version of JSON. You can switch from one format to the other with a single function call!

Reentrant

As long as you use a different JsonDocument in each thread, there is no risk of race condition.

Overflow Safe

ArduinoJson protects you against integer overflows. Before casting a value to an integer, it checks that the value is in range. If the value doesn't fit, it returns 0 to prevent overflows.

You can also safely test the type:

Custom converters

You can extend the types supported by ArduinoJson with custom converters.

For example, it allows you to add support for the (almost-)standard tm structure:

Portable

Despite its name, ArduinoJson is not limited to Arduino and can be used on any C++ project. All it requires a C++11-capable compiler, a requirement met by the major compilers since 2014.

ArduinoJson is continuously tested on:

GCC 5, 6, 8, 9, 10, 11, and 12

Clang 3.9, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, and 15

Visual Studio 2017, 2019, and 2022

Support for older compilers is available up to ArduinoJson 6.20.

Self Contained

ArduinoJson doesn't depend on any library; in fact, it doesn't even depend on Arduino!

It means you can use ArduinoJson anywhere you can compile C++ code.

The best example is your test suite: you can comfortably test your program on your computer without touching a microcontroller.

Zero warning

ArduinoJson compiles without any warning, even with the highest compiler settings:

It also has zero warning on Clang-Tidy.

Well tested

Because ArduinoJson is developed with TDD, it is thoroughly tested.

With more than 3600 assertions, ArduinoJson reaches a test coverage above 99%, making it the most tested Arduino library ever!

Header-only

ArduinoJson is a header-only library, meaning that all the code is in the headers.

This dramatically simplifies the compilation as you don't have to worry about compiling and linking the library.

A single file distribution is also available; that way, you just need to download one header.

Try online

You can try ArduinoJson online on wandbox.org:

Documentation

Of all Arduino libraries, ArduinoJson is by far the one with the best documentation. On this website, you'll find 724 pages of documentation and 43 news articles.

The site also hosts the ArduinoJson Assistant, an online tool that helps you to write the code for your project.

There is also the ArduinoJson Troubleshooter, another online tool that helps you solve common issues by asking a series of questions (there are about 300 pages in this tool).

Continuous fuzzing

Security is considered very seriously.

That is why ArduinoJson is integrated in Google's OSS-Fuzz program.

As such, it is continuously fuzzed in search for security vulnerabilities.

MIT License

ArduinoJson is open-source and uses one of the most permissive licenses so you can use it on any project.

✔️️ Commercial use

✔️️ Modification

✔️️ Distribution

✔️️ Private use

Sponsors

ArduinoJson is thankful to its sponsors. Please give them a visit; they deserve it!

If you run a commercial project that embeds ArduinoJson, think about sponsoring the library's development: it ensures the code your products rely on stays actively maintained. It can also give your project some exposure to the makers' community.

If you are an individual user and want to support the development (or give a sign of appreciation), consider purchasing the book Mastering ArduinoJson.

Become a sponsor Purchase the book

They use ArduinoJson

ESP8266 ESP32 MQTT

ESPHome is a system to control your ESP8266/ESP32 by simple yet powerful configuration files and control them remotely through Home Automation systems.

ESP8266 ESP32 AVR MQTT

MQTT gateway for ESP8266, ESP32, Sonoff RF Bridge or Arduino with bidirectional 433mhz/315mhz/868mhz, Infrared communications, BLE, beacons detection, mi flora, mi jia, LYWSD02, LYWSD03MMC, Mi Scale compatibility, SMS & LORA.

ESP8266 MQTT

An Arduino for ESP8266 implementation of Homie, an MQTT convention for the IoT.

ESP8266 ESP32 STM32 MQTT

HomeAutomation Switchplate based on lvgl for STM32F407, ESP32 & ESP8266

ESP32 OpenWeatherMap

A Wifi weather station, using an ESP32 and a BME280 sensor. It fetches weather forecast from OpenWeatherMap.

WeMos D1 Mini ip-api.com timezonedb.com

AutoClock, a simple internet-enabled clock driven by NTP and GeoIP to give an automatic offset from UTP for your location.

ESP32

A library for M5Stack to package you apps on a SD card and load them from a menu.

WeMos D1 Mini coindesk.com geonames.org openweathermap.org

A LED display that shows weather, time, and many other things.

Testimonials

It has a really elegant, simple API and it works like a charm on embedded and Windows/Linux platforms. We recently started using this on an embedded project and I can vouch for its quality.

thegreendroid on StackOverflow

This is a great library and I wouldn't be able to do the project I'm doing without it. I completely recommend it.

I am just starting an ESP8266 clock project and now I can output JSON from my server script and interpret it painlessly.

I tried aJson and json-arduino before trying your library. I always ran into memory problem after a while. I have no such problem so far with your library. It is working perfectly with my web services. Thanks Benoit for a very well polished product!

I recently stumbled onto your library after dealing with JSON on my Particle projects. Fantastic job!

Georges Auberger

Keep up the good work with ArduinoJson! It is an awesome library and a kind of "beacon" for me, really. The documentation, the website in general and your book is exemplary, I love it! I also provide and maintain several open source software projects (mostly Python packages or SailfishOS apps) and try to document them as good as possible, I know how time-consuming and hard it can be.

Yann Büchau on GitHub

Just wanted to say thank you for writing these docs so well. These are probably one of the easiest to understand well written docs I've ever browsed :)

Brad Matias

Just to send my appreciation for the good work and congratulate Benoit et al for the quality of the book "Mastering ArduinoJson", a very good value.

Jean-Marie Locci

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ArduinoJson: Efficient JSON serialization for embedded C++

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ArduinoJson is a JSON library for Arduino, IoT, and any embedded C++ project. It supports JSON serialization, JSON deserialization, MessagePack, streams, and fixed memory allocation. It has a simple API, it's easy to use, and it's trusted by thousands of developpers all over the world.

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GitHub - winlinvip/SimpleDHT: Simple, Stable and Fast Arduino Temp & Humidity Sensors for DHT11 and DHT22. http://learn.adafruit.com/dht

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Simple, Stable and Fast Arduino Temp & Humidity Sensors for DHT11 and DHT22. http://learn.adafruit.com/dht - winlinvip/SimpleDHT

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ESP32 Pinout Reference: Which GPIO pins should you use? | Random Nerd Tutorials

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The ESP32 comes with 48 GPIOs with multiple functions. This article intends to be a simple and easy to follow reference guide for the ESP32 GPIOs.

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using digital input will upload weird data which is inaccurate data to FavorIot. Hence the input type need to change into analog input to transfer accurate data.

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1)take out one of the location

2)save data into two different location

3) datalog file can display if there is new data input, else remain the same page

maximum of 10 data each page , got 5 page

4).gitignore file, api key all into env file

5)title = webdisplay title

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1) notification triggering based on 4 data in the webapp

2)how to send data to actual user telegram not bot

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Boost Your Telegram Game: Sending Messages with Node.js

# data[].attributes.body
1) upate the logo of the webapp

2) plotly.js/ chart.js for the graph for the distance sensor

# data[].attributes.body
1) updating the security of the webapp

2) claim money, cleaning into a sheet

# data[].attributes.body
1)testing functionality at Fkekk faculty

2) demo video of the project upload to youtube

3)update repository read.md file

# data[].attributes.body
1) about us page modify more ,responsiveness

2) dashboard padding ,margin in mobile view

3) navbar with fkekk ,utem logo

# data[].attributes.body
1) four type of data transfer

2) circuit design to mr hee, and ioc file to mr hee

# data[].attributes.body
1) telegram bot triggering ioc favoriot rules

2) try to implement voltage divider or filtering circuit

3)how to send data to actual user telegram not bot

# data[].attributes.attachment_link.title
Boost Your Telegram Game: Sending Messages with Node.js

# data[].attributes.body
1) logical function to statistics to trigger alert using 4 data , table to mr lee and mr hee

2) try and error of the value needed to implement the trigger alert

3)how to send data to actual user telegram not bot

# data[].attributes.attachment_link.title
Boost Your Telegram Game: Sending Messages with Node.js

# data[].attributes.body
1) casing for the iot project system

2) print out and laminate the qrcode

3) poster design and print out laminate

# data[].attributes.body
1) updating/upgrading the frontend view of the page

2) qrcode for the telegram , webapp

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1) updating the security of the sending in ioc file

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https://randomnerdtutorials.com/esp32-esp8266-i2c-lcd-arduino-ide/

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This tutorial shows how to use the I2C LCD (Liquid Crystal Display) with the ESP32 using Arduino IDE. We'll show you how to wire the display, install the library and try sample code to write text on the LCD: static text, and scroll long messages. You can also use this guide with the ESP8266.

16×2 I2C Liquid Crystal Display

For this tutorial we'll be using a 16×2 I2C LCD display, but LCDs with other sizes should also work.

The advantage of using an I2C LCD is that the wiring is really simple. You just need to wire the SDA and SCL pins.

Additionally, it comes with a built-in potentiometer you can use to adjust the contrast between the background and the characters on the LCD. On a "regular" LCD you need to add a potentiometer to the circuit to adjust the contrast.

Parts Required

To follow this tutorial you need these parts:

You can use the preceding links or go directly to MakerAdvisor.com/tools to find all the parts for your projects at the best price!

Wiring the LCD to the ESP32

This display uses I2C communication, which makes wiring really simple.

Wire your LCD to the ESP32 by following the next schematic diagram. We're using the ESP32 default I2C pins (GPIO 21 and GPIO 22).

You can also use the following table as a reference.

Wiring the LCD to the ESP8266

You can also wire your LCD to the ESP8266 by following the next schematic diagram. We're using the ESP8266 default I2C pins (GPIO 4 and GPIO 5).

You can also use the following table as a reference.

Preparing the Arduino IDE

Before proceeding with the project, you need to install the ESP32 or ESP8266 add-on in the Arduino IDE.

Arduino IDE with ESP32

Follow one of the next guides to prepare your Arduino IDE to work with the ESP32:

Arduino IDE with ESP8266

To install the ESP8266 add-on in your Arduino IDE, read the following tutorial: How to Install the ESP8266 Board in Arduino IDE.

Installing the LiquidCrystal_I2C Library

There are several libraries that work with the I2C LCD. We're using this library by Marco Schwartz. Follow the next steps to install the library:

1. Click here to download the LiquidCrystal_I2C library. You should have a .zip folder in your Downloads

2. Unzip the .zip folder and you should get LiquidCrystal_I2C-master folder

3. Rename your folder from LiquidCrystal_I2C-master to LiquidCrystal_I2C

4. Move the LiquidCrystal_I2C folder to your Arduino IDE installation libraries folder

5. Finally, re-open your Arduino IDE

Getting the LCD Address

Before displaying text on the LCD, you need to find the LCD I2C address. With the LCD properly wired to the ESP32, upload the following I2C Scanner sketch.

/********* Rui Santos Complete project details at https://randomnerdtutorials.com *********/ #include <Wire.h> void setup() { Wire.begin(); Serial.begin(115200); Serial.println("\nI2C Scanner"); } void loop() { byte error, address; int nDevices; Serial.println("Scanning..."); nDevices = 0; for(address = 1; address < 127; address++ ) { Wire.beginTransmission(address); error = Wire.endTransmission(); if (error == 0) { Serial.print("I2C device found at address 0x"); if (address<16) { Serial.print("0"); } Serial.println(address,HEX); nDevices++; } else if (error==4) { Serial.print("Unknow error at address 0x"); if (address<16) { Serial.print("0"); } Serial.println(address,HEX); } } if (nDevices == 0) { Serial.println("No I2C devices found\n"); } else { Serial.println("done\n"); } delay(5000); }
View raw code
After uploading the code, open the Serial Monitor at a baud rate of 115200. Press the ESP32 EN button. The I2C address should be displayed in the Serial Monitor.

In this case the address is 0x27. If you're using a similar 16×2 display, you'll probably get the same address.

Display Static Text on the LCD

Displaying static text on the LCD is very simple. All you have to do is select where you want the characters to be displayed on the screen, and then send the message to the display.

Here's a very simple sketch example that displays " Hello, World! ".

/********* Rui Santos Complete project details at https://randomnerdtutorials.com *********/ #include <LiquidCrystal_I2C.h> // set the LCD number of columns and rows int lcdColumns = 16; int lcdRows = 2; // set LCD address, number of columns and rows // if you don't know your display address, run an I2C scanner sketch LiquidCrystal_I2C lcd(0x27, lcdColumns, lcdRows); void setup(){ // initialize LCD lcd.init(); // turn on LCD backlight lcd.backlight(); } void loop(){ // set cursor to first column, first row lcd.setCursor(0, 0); // print message lcd.print("Hello, World!"); delay(1000); // clears the display to print new message lcd.clear(); // set cursor to first column, second row lcd.setCursor(0,1); lcd.print("Hello, World!"); delay(1000); lcd.clear(); }
View raw code
It displays the message in the first row, and then in the second row.

In this simple sketch we show you the most useful and important functions from the LiquidCrystal_I2C library. So, let's take a quick look at how the code works.

How the code works

First, you need to include theLiquidCrystal_I2C library.

The next two lines set the number of columns and rows of your LCD display. If you're using a display with another size, you should modify those variables.

int lcdColumns = 16; int lcdRows = 2;

Then, you need to set the display address, the number of columns and number of rows. You should use the display address you've found in the previous step.

LiquidCrystal_I2C lcd(0x27, lcdColumns, lcdRows);

In the setup(), first initialize the display with the init() method.

Then, turn on the LCD backlight, so that you're able to read the characters on the display.

lcd.backlight();

To display a message on the screen, first you need to set the cursor to where you want your message to be written. The following line sets the cursor to the first column, first row.

lcd.setCursor(0, 0);

Note: 0 corresponds to the first column, 1 to the second column, and so on...

Then, you can finally print your message on the display using the print() method.

lcd.print("Hello, World!");

Wait one second, and then clean the display with the clear() method.

After that, set the cursor to a new position: first column, second row.

lcd.setCursor(0,1);

Then, the process is repeated.

So, here's a summary of the functions to manipulate and write on the display:

lcd.init(): initializes the display

lcd.backlight(): turns the LCD backlight on

lcd.setCursor(int column, int row): sets the cursor to the specified column and row

lcd.print(String message): displays the message on the display

lcd.clear(): clears the display

This example works well to display static text no longer than 16 characters.

Display Scrolling Text on the LCD

Scrolling text on the LCD is specially useful when you want to display messages longer than 16 characters. The library comes with built-in functions that allows you to scroll text. However, many people experience problems with those functions because:

The function scrolls text on both rows. So, you can't have a fixed row and a scrolling row;

It doesn't work properly if you try to display messages longer than 16 characters.

So, we've created a sample sketch with a function you can use in your projects to scroll longer messages.

The following sketch displays a static message in the first row and a scrolling message longer than 16 characters in the second row.

/********* Rui Santos Complete project details at https://randomnerdtutorials.com *********/ #include <LiquidCrystal_I2C.h> // set the LCD number of columns and rows int lcdColumns = 16; int lcdRows = 2; // set LCD address, number of columns and rows // if you don't know your display address, run an I2C scanner sketch LiquidCrystal_I2C lcd(0x27, lcdColumns, lcdRows); String messageStatic = "Static message"; String messageToScroll = "This is a scrolling message with more than 16 characters"; // Function to scroll text // The function acepts the following arguments: // row: row number where the text will be displayed // message: message to scroll // delayTime: delay between each character shifting // lcdColumns: number of columns of your LCD void scrollText(int row, String message, int delayTime, int lcdColumns) { for (int i=0; i < lcdColumns; i++) { message = " " + message; } message = message + " "; for (int pos = 0; pos < message.length(); pos++) { lcd.setCursor(0, row); lcd.print(message.substring(pos, pos + lcdColumns)); delay(delayTime); } } void setup(){ // initialize LCD lcd.init(); // turn on LCD backlight lcd.backlight(); } void loop(){ // set cursor to first column, first row lcd.setCursor(0, 0); // print static message lcd.print(messageStatic); // print scrolling message scrollText(1, messageToScroll, 250, lcdColumns); }
View raw code
After reading the previous section, you should be familiar on how this sketch works, so we'll just take a look at the newly created function: scrollText()

void scrollText(int row, String message, int delayTime, int lcdColumns) { for (int i=0; i < lcdColumns; i++) { message = " " + message; } message = message + " "; for (int pos = 0; pos < message.length(); pos++) { lcd.setCursor(0, row); lcd.print(message.substring(pos, pos + lcdColumns)); delay(delayTime); } }

To use this function you should pass four arguments:

row: row number where the text will be display

message: message to scroll

delayTime: delay between each character shifting. Higher delay times will result in slower text shifting, and lower delay times will result in faster text shifting.

lcdColumns: number of columns of your LCD

In our code, here's how we use the scrollText() function:

scrollText(1, messageToScroll, 250, lcdColumns);

The messageToScroll variable is displayed in the second row (1 corresponds to the second row), with a delay time of 250 ms (the GIF image is speed up 1.5x).

Display Custom Characters

In a 16×2 LCD there are 32 blocks where you can display characters. Each block is made out of 5×8 tiny pixels. You can display custom characters by defining the state of each tiny pixel. For that, you can create a byte variable to hold the state of each pixel.

To create your custom character, you can go here to generate the byte variable for your character. For example, a heart:

Copy the byte variable to your code (before the setup()). You can call it heart:

byte heart[8] = { 0b00000, 0b01010, 0b11111, 0b11111, 0b11111, 0b01110, 0b00100, 0b00000 };

Then, in the setup(), create a custom character using the createChar() function. This function accepts as arguments a location to allocate the char and the char variable as follows:

lcd.createChar(0, heart);

Then, in the loop(), set the cursor to where you want the character to be displayed:

lcd.setCursor(0, 0);

Use the write() method to display the character. Pass the location where the character is allocated, as follows:

Wrapping Up

In summary, in this tutorial we've shown you how to use an I2C LCD display with the ESP32/ESP8266 with Arduino IDE: how to display static text, scrolling text and custom characters. This tutorial also works with the Arduino board, you just need to change the pin assignment to use the Arduino I2C pins.

We have other tutorials with ESP32 that you may find useful:

We hope you've found this tutorial useful. If you like ESP32 and you want to learn more, we recommend enrolling in Learn ESP32 with Arduino IDE course.

Thanks for reading.

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i2c lcd with esp32 on arduino ide esp8266 compatible

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how to use i2c lcd with esp32 on arduino ide

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how to use i2c lcd with esp8266 on arduino ide

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esp8266 esp32 lcd i2c tutorial code library arduino ide

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esp8266 esp32 i2c lcd library code schematics

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I2C LCD with ESP32 on Arduino IDE - ESP8266 compatible | Random Nerd Tutorials

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Learn how to use the I2C LCD (Liquid Crystal Display) with the ESP32 or ESP8266 using Arduino IDE. We'll show you how to wire the display and write code.