Questions tagged [uart]
A UART is a Universal Asynchronous Receiver/Transmitter. This refers to the "hardware" serial port in the processor. Use this tag for questions about hardware serial.
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Software serial and RS485
I have 2 Arduino Nano that will communicate in half duplex mode with transceiver using MAX485. But the master has libraries like Wire.h, uses tone() and also receives UART communication.
I'm a ...
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Missing data when communicating over UART
So I am working on an Arduino project and have trouble communicating over UART.
I have a SIM7600G-H 4G Module from Waveshare and hooked it up to an Arduino Nano ESP32. The connections are as follows:
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Connecting the device to Arduino via the UART protocol
The essence of the task
I have a task to connect an external device with my arduino and transfer data to each other via the UART protocol. The external device has 4 pins (Two for power supply and RS-...
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How many FPS I can theoretically get for streaming frame from OV7670 with this setup?
Setup:
OV7670 -> STM32F103... --USART--> ESP01 --UDP--> Gateway --> Internet --> Server
I want to achieve a real-time streaming experience.
Here is my analysis:
According to the ...
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UART Transmission Incorrect on ATTiny826
I'm currently trying to test an extremely simple circuit where I use an ATTiny86 to output some arbitrary values via serial to an Arduino micro. The problem I am facing is that all of the values being ...
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Interfacing A9G with Arduino for AT commands testing
I am trying to hook up to an A9G Pudding GSM board via an Arduino. I intend to use the onboard UART chip to facilitate TTL-UART conversion between PC and A9G.
I have initiated a software serial ...
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Communication between two ESP32, USART vs RS232 with MAX3232
I have two ESP32 that are communicating via USART (TTL) on the Serial2.
The TX2 pin of ESP_Alice is connected with the RX2 pin of ESP_bob.
The RX2 pin of ESP_Alice is connected with the TX2 pin of ...
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Arduino board with StandardFirmata doesn't respond to C# and Python client
I have a Seeeduino XIAO board with Firmata running on it. I'm currently trying to write C# client to communicate with this board.
I have tried using Iot.Device.Arduino, SolidSolis.Arduino and ...
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Having issues with RS232 UART wiring to a physical PC connection
TL;DR: Attempting to connect UART2 on ESP32-WROOM to a physical PC RS232 results in odd behavior and ESP32 crashes or errors. Suspect electrical design problems. Wondering if I need special ...
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UART - Different results between logic analyzer and an Arduino [closed]
I would like to decode a serial communication.
I have already found out how the protocol works. I can also send serial data with my logic analyzer and control the device this way.
I would like to ...
Jens1888
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UCSR0B equivalent for ESP2866
I'm trying to convert an Arduino Uno program for use with the ESP2866. I've converted most of the program successfully, but there are a few lines I can't seem to figure out. For example,
UCSR0B = ...
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Best Solution to Parallel UART reads with Arduino Due
I have 4 Arduino boards pushing data over UART to 4 serial ports on the Arduino Due at 115200 baud rate.
Data format - <Short URL>,<Number of the Node>
Eg: px.ht/d/mCxG,1"
Arduino Due ...
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ESP32 S3 Same code works on Serial1 but NOT on Serial0 for RS485 module
I have designed a test board to understand ESP32-S3 working pins. I am using USB interface D+, D- for programing so Serial0 is free to use.
This is my test circuit for testing an RS485 converter. For ...
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Is it possible to use UART0 freely when connecting ESP32 s3 via USB (D+, D-)?
I've designed a test PCB that utilizes an ESP32 S3 and testing pins. During program uploads, I use the USB interface over GPIO20 and GPIO19 as D+ and D-. Everything works fine in this configuration. ...
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Why are the UART ports not working on my Portenta breakout board?
I am using a Portenta Arduino Breakout Board that is connected to the Portenta H7 for a project I am working on. The project requires me to use three Adafruit Ultimate GPS sensors and connect each to ...
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