Display text on TFT screen sent from PC.
Arduino is Nano or Uno. TFT screen is 1.8" driver ST7735. Connected to PC via USB. Color and size are selectable.
' TFT module with ST7735 driver
' 1 LED 3.3 V or 5V via 47 ohm
' 2 SCK 13
' 3 SDA 11
' 4 A0 Or DC 9
' 5 RESET 8
I spent a while searching the forum but didn't find hints targeting my question: I want the Mega to boot from a hex-file from the SD card.
While it is obviously possible to transfer a compiled sketch to the Arduino Mega via an Ethernet connection, what is necessary to reset the board...
Seed - Wio Terminal
I think these small devices are very interesting that allow you to have an integrated cpu with a display and an I / O connector
Has anyone tried programming them using B4X environments?
Hi, I have a Tablet connected to an arduino that is sending to the tablet data (one value) 50 times per second. I have to show that data in the tablet, and it has to look like the red part in the image below.
Now, the question is, how can I “add” new point to the left, erase first point of the...
Hi. I was excited when I found an Arduino board featuring WiFi without external shells. I used the ESP8266 before, and worked, but I (erroneously) supposed that this one would be easier. I have included the libraries needed for using the WiFi (SPI.h and WiFiNINA.h), but the B4R says that cannot...
I would like to have an android interface to send commands to the ESP32 wifi module. For this purpose, I would need to make the board be connected to the Wifi desired by the user, secondly retrieve the IP assigned in the network and finally send commands by the Android...
Im using UsbSerial lib 2.3 to connect to an arduino, it works perfect BUT only if the arduino is the ONLY device connected to the USB to my Android TV BOX
If I have an USB mouse connected, the program doesn't find the arduino.
I can connect the arduino, run the soft, connect, and...
I’m trying to send data from the Arduino to mobile app and I’m getting a wired result and I’m unsure why I will try and send HelloWord from the Arduino and it comes out on the B4A Log as the following
I have added the code I’m using below I got the code from the demo...
For the ESP8266 watchdog, can be very simple to use.
#Region Project Attributes
'These global variables will be declared once when the application starts.
'Public variables can...
I installed the B4R and noticed that there is no Designer, how are TFT screens made?
I have found a project that is starting, and it promises to be very useful, maybe you can talk and join forces to make both projects better.
[A lightweight GUI framework for embedded displays]...
i have this structure:
arduino serial monitor window - pc - usb - arduino mega - bt le modul - phone - ble2 example app
ble2 example app find the bt device and connect but if me send data from pc via arduino it seems it not receive it, means it not appear in the window.
but this works...
hello, i am a little bit confused.
i have a arduino mega and a bluetooth modul.
there exist a special phone app that can send data to the modul and i can send data from arduino to phone without pairing.
the pairing currently does not work at phone and i get no response from the AT commands^^...
Bonjour, je suis nouvelle et je débute sur le logiciel B4A.
Pour un projet, nous devons recevoir des donnés envoyés de la carte Arduino au port micro-usb du téléphone Android.
Nous devons ensuite afficher ces donnés dans un tableau.
Le problème étant que je ne trouve aucun tutoriel que ce soit...
The Arduino IDE can find the IP address of the ESP8266 (mDNS:arduino) when it is programmed with OTA, but we also have ESP-LINK software, which allows the ESP8266 to work in transparent (TCP / IP-Serial) mode allowing reprogramming of microcontrollers like Atmega328 (Arduino UNO / Nano / Pro...
How can I connect Arduino with my cell phone over the internet by using 4G or another wi-fi connection? I'm using udp connection by the way.
Should I make any changes on B4R and B4A program?
I have a modem1 with external IP and a wi-fi router2 connected to arduino by means of ethernet cable...
So we do have the following library folders:
C:\Program Files (x86)\Arduino\libraries
C:\Program Files (x86)\Anywhere Software\B4R\Libraries...
Hola a todos.
Estoy tratando de crear una sencilla aplicación que permita enviar comandos y recibir respuestas de un arduino.
Este es el código que estoy empleando.
#Region Project Attributes
#ApplicationLabel: B4A Example
Hola, Me compré hace una semana un kit Makeblock mbot Ranger, que es un kit robot 3 en 1, con el que puedes montar un tanque, un coche 2 ruedas con una rueda trasera loca y un 2 ruedas que mantiene el equilibrio tipo segway o tipo hoverboard. Tiene bluetooth, wifi, sensor de lineas...