Mit app inventor serial communication. Pac-Man September 28, 2022, 2:00pm 7.

Mit app inventor serial communication Alex22 July 3, 2022, Im working on creating a robotic arm that is controlled by buttons on a app, so far i have got all of that working, but, currently i am trying to implement a save feature Hello All, I have some trouble to send strings to my arduino nano 33 BLE board. Only traditional Bluetooth where communication is developed with serial communication (easy ) to external devices like HC-05 or similar. InitializeSerial() Initializes serial connection. instruction blocks any serial communication of the three serial lines called Serial1,2,3. I am trying to create an app that can send a phone number to arduino and so make arduino turn this Hi Friends, So, I'm doing a project where I need to send a byte from the MIT AI2 to the Arduino and send a byte back using Bluetooth depending on the situation of a magnetic switch. In this example we will use the same App as in the previous example. When I press the button connected to the ESP, would the ESP be able to indicate I'm trying to use Serial to communicate to an Arduino with my phone. registerforstrings, ble. We Phyton2. Web MIT App Inventor Community Serial OTG Port does not open Serial Port. Extensions. Serial communication is always depending on timing. Lyn Turbak, Wellesley College: Example App CoinFlip: Flip a Coin introduces the concepts of abstraction and randomization of numbers. The ‘C code. The DTR feature allows the MIT App Inventor Community Arduino NANO to serial communication via OTG. I manage to Buenas noches, me encargaron un pequeño proyecto en el que debo crear una aplicación que sea capaz de extraer los datos de la computadora (ECU) del vehículo tales como la velocidad, las RPM y también pueda apagar la luz que indica el mal funcionamiento del motor con la interface ELM327, pero debo hacerlo mediante una comunicación serial, es decir, This a part of tutorial that showing how to use serial communication between arduino and android ( soon iOS) . You turn on the application. When I turn on mains supply to make my pump running, an issue rises between arduino and app. Mains power disturbs Arduino and App serial communication. Basically, based on a certain condition, the Arduino will send either "opened" or "closed" as a string to the MITAI app. I'm still stuck. Login MIT app inventor and start an new project. Arduino IDE. This is the code I made to test if it works When I cl It works with most common usb-serial adapters and chips. Hello good day! We're currently working on a project. Closes serial connection. id BlueTooth Problems Disconnection detection through handshakes - @uskiara How to get Device Information BlueTooth Client Polling Rate Explained - @ewpatton Links to bluetooth guides on communication, Simple code to communicate with an App on your Android phone (MIT App Inventor) to an ESP32 (Arduino). I’m Hello friends, To carry out applications with Bluetooth between Arduino and App Inventor, the HC-06 module is usually used. To send the data we will use the Serial Monitor. You have to add the protocol. Hi kl099, thanks for your help! Could you be more specific in your answer? I don't know where to find the documentation and which parameters to change or even where Hello friends, To carry out applications with Bluetooth between Arduino and App Inventor, the HC-06 module is usually used. We will use an OTG cable and a I'm trying to use (2) textboxes to send data over a Bluetooth connection to an Arduino. Once paired you should see the red LED of the shield to stay steady or to blink slowly (it depends MIT App Inventor Help. DIY_ch_nn_l May 23, 2023, 4:32am 43 "SerialOTG. With this app you can quickly and easily test your serial parameters from your phone to device to make sure it is working properly. it receives the data fine but forgets it as soon as new data is received. 4 KB) Hi, please help me. usb, serial. Hi, i'm trying to establish a USB otg (no bluetooth) commmunication between my arduino UNO and my android device. { Serial. Below are the steps 1. Test your apps with a Chromebook Instructions. I plug in the USB cable into the phone, and then open the app. When you write bytes, you can expect that all are transmitted within a time depending For more information regarding building your app in MIT App Inventor, follow this guide: App Inventor Tutorials. Can It works with most common usb-serial adapters and chips. . Ex: at 9. blocks (1) 890×626 79. The touchscreen displays a slider and accepts user input, no problem with that. General Discussion. In particular, have you seen this Topic: 4. - ESP32-CAM as a QR Reader. After connecting the arduino with an OTG cable in the "Serial USB monitor" application (from the play store), I normally see "enter name". John_Louis [ATmega32U AVR chip] and a cheap MLT-BT05 Serial Bluetooth Breakout, with simple serial communication. If you need compressed hex, Hi, I am trying for some time to send data from esp32/esp8266 to mit app by wifi and unfortunately without success. Use an extension instead of a built-in component. When the app communicates with the HC-05 module and the arduino it responds 1 to 2 seconds later which is very late for a bluetooth rc car app. Reading this chat I can understand how to solve the problem can you help me? Load on the phone a serial BT monitor app (Serial Bluetooth Terminal is a pretty good one) and try to pair the HC05. rkl099's Extension Also done some refactoring to make it work together with the Physicaloid library included in MIT Appinventor. serial, otg. I implemented ReadLn to simplify ASCII message communication. Maurizio_Pinna June 29, 2020, 10:11am 1. Pac-Man September 28, 2022, 2:00pm 7. By this discussion it Hello! I am having a lot of trouble trying to find a solution for this problem, if anybody knows what to do, please help. There are some finished examples but only for one way communication, from mit app or web server (eg. This is Serial communication is the most widely used approach to transfer information between data processing peripherals. from Bluetooth module display in the text box and also translate it in speech without clicking Unfortunately I couldn't find any suggestion on Micropython implementation using BLE. With this connection you can send characters (and string) data. I would prefer to use the Softwareserial library which uses digital pins on the arduino for serial communication but I am unable to send/receive data between the Phone app and arduino. This MIT App Inventor Help. I'm using an Arduin This tutorial will go through the bare minimum you need to create an connection between a custom android app you make with MIT App Inventor and the Arduino. WriteSerial(data) Writes given data to serial. Is there nothing that can be done about this. If you need compressed hex, see the math faq 1 Like. When the switch is on it Also, there is an app in the play store called "Serial USB Terminal" by Kai Morich. When the textbox gets full (if textbox length = x amount of characters), I set the I cant figure out how to receive data from arduino to mit app. http://www. WebServer. Works on Before doing anything even remotely complicated using the NodeMCU and the App Inventor, it is best to test the waters by building a simple app to turn the built-in LED in the Wi-Fi module on and off! I took help of this webpage which Example App Summation App: This simple calculation app uses basic conditionals and math components. to download the application : https://play. It is a block-based If you have a smartphone, computer, and Wi-Fi connection, this is the easiest way to create and test your apps. Inside the android app, the user will first set the IP address to that of the ESP32 module. Introduction Along with the rapidly developing technology, robot technology shows great development. Serial line is mostly used for request-response communication. See also issues with inexpensive plug in wall power (Serial component) MIT App Inventor Help. I want to send data from esp32 using bluetooth with command '1' will display the name and id in the string. You have to add the formatting of the messages yourself, by timing and/or by the content. boarduino. Beware - AI2’s idea of hex is not compressed. I made a basic example of turning LEDs on and Accessing a non-csv microsoft excel file from a USB drive through otg Hi @rkl099 I have seen the documentation for the conectivity components before i think i do the necessary blocks in my program. We will use and adapt the Hello, - someone who knew App Inventor got the opportunity to control arduino from an otg phone, called the serial component. FTDI. hi We have 4 separate Apps to be configured accordingly because we assign per App one IP for the WIFI connection: As long the device with the separate Apps acts as a Hotspot Server, all the PLC devices can connect and use a separate IP (PLC-Device belongs to a separate APP on the Serial device). Copy the link (it's always the same except for four characters) and download on phone browser and install. This is the code I made to test if it works. Fabio_Nakano April 26, 2020, 11:18pm 9. RFCOMM) App Inventor, Micro:bit and UART Somehow, communicating with a micro:bit via UART is more difficult than it should be. i receive both MIT App Inventor Community Serial OTG. The extension and complete documentation can be Hi, I’m trying to put on/off the built-in led of Nano33Ble Boards through an App but I0m facing an issue with WriteStrings method. serial, arduino. Data is sent by arduino to the serial port without checking whether it is open. Using MIT App Inventor Community Serial OTG. The pump or the relay or the power supply is creating an electronic spike creating interference. It would be great that besides arduino Uno, arduino NANO could also work via serial communication with OTG cable. I’ve the sample sketch “Led” written on the Nano board. I have tried several times to upload an MIT APP I have a question, I have an arduino which, when connected, sends the text "Enter name". The camera is streaming independently to my app and that is working fine. In app inventor, I set it to connect in the application after pressing the "connect" button. I would prefer to use the Softwareserial library which uses digital pins on the arduino for serial The App Inventor Serial lib is relatively new - those that are familiar with using Serial comms have made suggestions for improvement. Steven_P Serial communication is always depending on timing. ESP32 Serial communication - Application. bluetooth, arduino. web. 2: 1005: February 13, 2021 Serial data from an Arduino doesn't show in App. The function returns an empty string, until a complete message is received. Can Can you use the serial terminal app for communication? Domenico_Mezzacapo February 6, 2024, 8:13pm 55. Click the ‘Set IP Address’ button. The code for the car is as follows. This is important for ESP to be USB Bridge for App Inventor 2 allows through a USB OTG cable to achieve a seamless interface between a USB device and the development tool APP INVENTOR 2. The example works fine, but I need to also use ESP-Now When I add the needed When I send text to my HC-05 bluetooth module, the arduino is just interpreting it as some random gibberish. ReadLn() to receive a message terminated with a new_line char. MIT app inventor is perfect for ones who don’t want to go deep but Today I'm Going to go over how to set up serial communication between a Arduino and a smart phone using a OTG cable and MIT app inventor. Hi, I'm working on an app to tune the PID of my ESP32 powered drone. When I press the connect button, no device shows up. 1. However I didn't find any satisfied example that let to receive data from MCU (eg. My app has to talk with arduino by serial too. Hello, It is a nice Text' Block? I get that it's purpose is to open the serial communication, but what type of component is 'Status' and what did you chose in Designer to add that in? Hi Friends, So, I'm trying to receive a string from an Arduino UNO with an HC-05 module. I built my app in december 2022 and the apk worked fine with android 11 but failed with android 12 and 13. It is a robotic arm mounted on a car with an esp32cam as a camera. I've got the Serial component working, and can communicate with an Arduino attached to my phone with an OTG USB cable. aia (101. aia" is a good tutorial for me, With the transmission of a single character, I did not experiment anymore. The following is the screenshot showing a block related to the switch. MIT App Inventor Help. I App Inventor, Micro:bit and UART Somehow, communicating with a micro:bit via UART is more difficult than it should be. Because, I began to use the WriteBytes block for this purpose. The extension with some examples can be found at: GitHub Hello friends, To carry out applications with Bluetooth between Arduino and App Inventor, the HC-06 module is usually used. Please make sure that your ESP32 has integrated Bluetooth. 5 KB. It is a block-based I have read this chat to solve the problem about the App inventor Serial component and the FLAG IMMUTABLE /MUTABLE. usb, serial, arduino. Kaustubh_Rakhade September 26, 2022, 3:23am 2. Arduino CH340. Hesham_Elfeshawy June 29, 2022, 7:16pm 1. If you connect this device you get an error “Java Lang. Site Feedback. However, it seems that the blocks Hi, I am making a project with esp32. - App sends three values separated by comma. Simply install the App Inventor Companion app on your phone and test your apps through a Wi-Fi connection. #include I have read this chat to solve the problem about the App inventor Serial component and the FLAG IMMUTABLE /MUTABLE. arduino, serial. and command '2' will display total number in the class. Script : bluetooth5. 3: 2048: May 20, 2020 next page → Hi, I'm working on an app to tune the PID of my ESP32 powered drone. It can be extended to many different topics by using the template. This is the code I made to test if it works When I cl I have just updated SerialOTG with a new function Serial. Kaustubh_Rakhade September 24, 2022, 2:15pm 1. I am still not entirely understanding how it all works, I am just speechless how much I achieved in so little time. Arduino + MPU 6050 gyroscope. When the switch is on it 5. For example, with the arduino connected New Appinventor extension that replaces Appinventor serial. rkl099's Extension . I implemented ReadLn to simplify ASCII message Dear @Mahzaib_Munawar, the annexed files are the super-simple examples of a working communication on BT between AI2 and an Arduino NANO board fitted with a HC05 As mention previously, we will use the serial communication so we need to begin the serial communication at 38400 baud rate, which is the default baud rate of the Bluetooth module. OpenSerial() Opens serial connection. I can connect to the HC-05; however, I am not receiving the byte in the Arduino. The circuit: - Arduino MKR WiFi 1010, Arduino Uno WiFi Rev2 board, Arduino Nano 33 IoT, Arduino Nano 33 BLE, or Arduino Nano 33 BLE Sense board. Option 4. In all the examples I’ve seen using Mit App Inventor and the HC-05 Bluetooth module everyone uses the Rx/Tx pins. In order to test the sketch I Everything works well when I tested with relay not having mains power supply. rkl099 November 9, 2020, 10:19pm 31. I understand from some of the discussions that users expects some kind of package handling of the serial line data, but it is just a serial connection with a stream of bytes. It is a block-based programming tool We have transferred this code to the Arduino before connecting it to the ESP-01S to ensure that the Arduino will not use serial communication (TX and RX). The application resets arduino when opening the serial 8. To update, delete For the projecting I'm working on, I need to send sensor data from my Arduino to an app I built using MIT App inventor 2. NoClassDefFoundError: With this app you can quickly and easily test your serial parameters from your phone to device to make sure it is working properly. I initialize the serial to a local variable when it comes in and print it into a textbox. ReadSerial() Reads data from serial. This can be confusing. I am trying to make a controller for addressable leds, but the precise timing means interupts are temporarily turned off. String data= Serial. Hi Friends, So, I'm doing a project where I need to send a byte from the MIT AI2 to the Arduino and send a byte back using Bluetooth depending on the situation of a magnetic switch. This component uses the Serial Port Profile (SPP) for communication. - AAJAY5/ESP32BleUart_MitAppInventor_Demo Hi I'm trying to do a simple example of communication between an application and ESP32 through an Access Point. The MIT App is OK for Byte transmission and my "13" byte value is well received by my MIT App Inventor Help. I'm trying to follow this example that i found on internet, One problem with the built in serial component is that it does not include d2xx. Moving the gyroscope moves an image with the gyroscope photo on PC screen using MIT App Inventor Help. My arduino code is here: const int trigPin = A2; const int echoPin = A3; long duration, Hello friends, I’ll write in this topic about WiFi on ESP32, LED on/off, Static IP, SoftAP, 0. blocks 860×362 40. When I attempt to open a serial connection, the phone alerts me with a pop-up notification that says: Allow the app [app Hi all! I have an arduino Zero with a touchscreen display and a HC-05 bluetooth module. Convert number from decimal do hex MIT App Inventor Help. On the other MIT App Inventor Help. Here ESP32 and Serial USB communication android arduino. jar needed for communication with FTDI usb to serial converter. You have to poll for the response. Example #5 - App sends on/off LED12 and LED14. I have used it for serial communication with a Pc to test the different adapters. analogRead in time interval) and send I'm trying to use Serial to communicate to an Arduino with my phone. I have success connecting using the configuration that leverages the Rx/Tx pins but unfortunately this poses issues uploading new scripts to the arduino. The general principle is to build a program from blocks and then send to the series what you want through the OTG cable. If you need compressed hex, If you don't have a phone or tablet handy, you can still use App Inventor by installing the emulator software on your computer. Ronak_Singha June 22, 2020, 5:29am 1. ledOn/, ledOff/) to MCU. Option 2. I'm trying to follow this example that i found on internet, this one It works with most common usb-serial adapters and chips. Hi everybody, being a newbie in App Inventor, I am looking for support, regarding an issue with the building of the Bluetooth App for a Moto g(9) SmartPhone. Now, as we have built our app in ), and in the arduino code i manage to do a function and set up the ESP8266 "manualy" to say so. This module can only work as a client, I have created an app to control a robotic arm via Bluetooth (HC-05) and Arduino. Web Can you use the serial terminal app for communication? Domenico_Mezzacapo February 6, 2024, 8:13pm 55. I manage to get good serial read (visually) by the assistance from the community from my previous topic. This is a cheap card ($ 5) with the dimensions and Hi, I am using one of Juan_Antonio’s ESP32 examples. That lets you create, test, and run the finished app on the same device. Can you use the serial terminal app for communication? Domenico_Mezzacapo February 6, 2024, 8:13pm 55. You can buy or make a low pass filter that might correct the problem. It uses the Blockly programming system rather than text and does a lot of the heavy lifting for you. This module can only work as a client, Simply install the App Inventor Companion app on your phone and test your apps through a Wi-Fi connection. Although it initially may appear Building App with MIT APP Inventor to Display Sensor Data. It's not possible. ESP32 Hello I have been trying to get my HM-10 to send data to my mobile phone, bu nothing works for me. When I attempt to open a serial connection, the phone alerts me with a pop-up notification that says: Allow the app [app There are no user events or user call-backs for received characters. readString();// reading the data received from the Also, there is an app in the play store called "Serial USB Terminal" by Kai Morich. This is my arduino code: void setup() { Serial. BluetoothSocket(bluetooth. Arduino receives them and separates them. Tutorials and Guides. This is my app inventor code: Link of my app: MIT App Inventor The IP address will be displayed in the serial monitor of Arduino IDE. 6 kbaud each char needs about 1ms to be transmitted or received. txt’ file is the Arduino code that reads the data from a serial port. PrintSerial(data) Writes given data to serial, and appends a new line at the end. The block code I created is not working. Arduino communication is just a special case, normally with a application specific protocol. Juan_Antonio and the HC-12 transmits it. 7. I'm using a TFMini Lidar Sensor to measure Hello all, I am attempting to connect my HC 05 Bluetooth module and my Arduino Nano and communicate. I have tried to run a program that worked on android 11 over another with version 12, but when trying to activate the serial port, this message appears. begin(9600); // communication with the host computer MIT App Inventor Community Arduino NANO to serial communication via OTG. 2 KB You probably need an AC mains lowpass filter on your power supply or get another power supply for the pump. Returns true when opened. extensions, arduino, bluetooth. The protocol is a secure and reliable form of communication One problem with the built in serial component is that it does not include d2xx. I'd like to use the BLE available on Raspberry Pico W with on board antenna. This If you have a smartphone, computer, and Wi-Fi connection, this is the easiest way to create and test your apps. (I'll check if it can be fixed as well) 6. For now, using the extensions as indicated in this tutorial, will ensure that everything works. Many Chromebooks are capable of running Android apps. Receive. Also, there is an app in the play store called "Serial USB Terminal" by Kai Morich. You'll be able to develop your own new applications using the Keywords: Android application, MIT App Inventor, Bluetooth, Robot control 1. Setting up App Inventor on Smartphone. Patryk_F February 5, 2021, 7:48pm 2. Bluetooth. rkl099's Extension SerialOTG already is a complex software that can handle many USB/serial my problem is create a json and send to serial monitor and then deserealise blocks below: MIT App Inventor Community MIT App Inventor Help. I would appreciate if someone knows how to solve it. The project tries to read a QR code with the ESP32-CAM, decode it and send it via classic Bluetooth to an app created with App Inventor. Send. This together with SerialPrint() makes ascii message communication simpler to implement. The basic idea is to send integers to the arduino based on which it will do certain actions. Have a class of 30 students? Have them work primarily on emulators and share a few devices. This module can only work as a client, Good morning, I would like to know if it's possible for me to virtualize a keyboard input, using a serial communication with the ESP. I created Dear @Mahzaib_Munawar, the annexed files are the super-simple examples of a working communication on BT between AI2 and an Arduino NANO board fitted with a HC05 ESP32 supports BLE and classic Bluetooth. Ralph Morelli, Trinity College: Example App The original Bluetooth technology provided a serial communications link between two paired devices (as compared to an individual data packet sent between up to n devices using the much newer Bluetooth MIT App Inventor Community Using serial with FTDI. When I press the button connected to the ESP, would the ESP be able to Arduino NANO to serial communication via OTG. What's the best way to accomplish this? I tried a single button, however it send the 2 boxes' data concatenated which will not Code for bi-directional Bluetooth communication between ESP32 and Phone (with MIT App Inventor). In this example _SERIAL is a SoftwareSerial port, and DIAGNOSTIC is the Arduino’s built-in serial port that sends the results to my PC via USB. rkl099 February 6, 2024, Can you use the serial terminal app for communication? Domenico_Mezzacapo February 6, 2024, 8:13pm 55. It is a block-based One problem with the built in serial component is that it does not include d2xx. In this topic we can find several examples of BLE: BLE ESP32. Below are the steps performed: Command--> USBdriver:(1) results: connected: false isopen:false. - An example of Processing and Arduino. MIT App Inventor is an incredible web application that helps users build interesting Android applications. To establish a serial connection we need to include serial from connectivity tab, drag and drop the item. Using I am creating a parking assistant application. arduino MIT App Inventor Help. I would also like for the data to be converted to text to speech. When I attempt to run the application with my code, no distance values are displayed. For example, with the arduino connected running the above sketch, entering a "1" into this app returns a "4" on the terminal. goo On nb183 App Inventor version, MIT App Inventor Help. I take the Serial and print it in a text box for user feedback when they make a command via the APP. Alternatively power from a battery. Who succeeded, tell me how to build blocks for the connection, something does not work. Returns true when closed. Simple code to communicate with an App on your Android phone (MIT App Inventor) to an ESP32 (Arduino). WiFi. Domenico_Mezzacapo February 5, 2024, 8:01am 46. Hi, i'm trying to establish a USB otg (no bluetooth) commmunication between my arduino UNO and my android device. My advice is to test with a serial terminal APP so you can verify that your USB OTG cable works, before you start to Hello, yesterday I was searching for a suitable smartphone app creator app for my project and I came across MIT APP Inventor - which means my question will probably be Hello friends, this topic is about sending data from an ESP32 to the application via WiFi in real time. This Use BluetoothClient to connect your device to other devices using Bluetooth. The the sketch is this: /* LED This example creates a BLE peripheral with service that contains a characteristic to control an LED. This instructable is just a very quick demonstration of the "Arduino USB Serial Extension" that was created by Thunkable developer, Pavitra. MIT App Inventor MIT App Inventor Community Send string from MIT APP text box to ESP8266 and ArduinoMega. begin(9600); // MIT App Inventor Community Serial OTG. MIT APP inventor Arduino Bluetooth Application- I have been using Bluetooth supported cell phone apps for monitoring and controlling different types of sensors and electrical loads. Static IP. I created a sta web server using esp32 to receive data from the app. I'm trying to use Serial to communicate to an Arduino with my phone. py import time import datetime import bluetooth server_sock=bluetooth. But when plugging in the cable, I get the ESP32 BLE UART demo: Integrate BLE communication with MIT App Inventor for seamless control of ESP32 devices via custom Android apps. To change the MTU C code it needs one of the BLE Arduino Libraries, none of which are compatible with my micro processor. All code and references From app inventor, build app to QR code. No Wi-Fi? MIT App Inventor Since you are maybe using some other device, there is also this thread, which further defines the default communication: Testing the next release of MIT App Inventor (nb183) - #6 by ewpatton. I'm using an Arduino Uno, an HC-05, and a Magnetic field switch to determine which byte is sent. Below are the steps performed: Command--> USBdriver:(1) results: connected: false isopen:false MIT App Inventor Help. I understand from some of the discussions that users expects some kind of package I installed a wifi socket widget app from playstor which controls arduino using esp8266-01 module by sending a command "IP address: port/command" and it works good but I My first post, and sorry for probable mistakes in English! I am working on a university project that receives ECG (electrocardiogram) signals, digitize them by ESP32 module, MIT App Inventor Community Serial OTG. SerialOTG already is a complex software that can handle many USB/serial adapters, communication as byte App Inventor 2. Awesome! I needed an app to interact with an Arduino by sending characters which MIT App Inventor Community Serial OTG. It would appear you need a micro processor with Bluetooth Communication and responding of app is slow. I will upload it in a minute. You can use a generic BLE central app, like LightBlue (iOS and Android) or nRF We are going to test @Ulrich_Bien 's UDP extension to send/receive text from ESP32 and from two mobiles. serial, otg, ftdi, ch340, extension. I tried copying from the FAQ but to no avail. (Serial component) MIT App Inventor Help. The arduino and any other device using serial will still be using Howdy, I have this nagging issue that i cant seem to shake! I'm reading in Serial from an HC-06 and Arduino. To try the functions that we'll be using we used this repo for the arduino code We're trying to read a string from a textbox in MIT app. Is there a way to make MIT App Inventor Closes serial connection. Only 1 byte of data sent over BT would be buffered, if I understand correctly, so I need to send some flag I have created an app to control a robotic arm via Bluetooth (HC-05) and Arduino. I built my app in december 2022 and the apk I'm trying to use Serial to communicate to an Arduino with my phone. It's still being developed so think of this as Hello friends, I am going to comment on my experience with the great extension of the user @rkl099, which you can find in this topic: With this extension we can connect Hello, I am new here. Building App with MIT APP Inventor to Display Sensor Data. Looking at the physicaloid library sources, the defaults are 8 bits, 1 attendace. I want it to Building App with MIT APP Inventor. Device used for coding: ESP32-WROOM-32D. If you are interested in using Bluetooth We will be using MIT app inventor to build a app which will do the work of transferring collected data from sensor to phone. So, as @ChrisWard just have said, don't use the delay(), instruction MIT App Inventor Community Exploring Keyboard Input Virtualization via Serial Communication with ESP: Feasibility and Simulated Key Press Good morning, I would like to know if it's possible for me to virtualize a keyboard input, using a serial communication with the ESP. Juan_Antonio: Can you MIT App Inventor Community Serial OTG. I'm trying to follow this example that i found on internet, this one Serial USB communication android arduino. - Board D1 R32 ESP32. App Inventor 2 is a fairly easy way to get in to creating Android apps. zcykuic ldik cvlo zuinyi lqpv qcsl lzj rvtkj ssqod uzjucvi