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SPI Communication Issue: MISO Frame Corruption or Overlap Between Two Microcontrollers
I’m currently working on SPI communication between two microcontrollers.
The MOSI frames are working as expected; however, I’m facing an issue on the MISO line. It appears that the end of the frame is ...
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1
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57
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WaterRower S4 (Firmware 2.10) only responds to RESET – all other serial commands return ERROR
I’m trying to communicate with a WaterRower S4 Performance Monitor (firmware version 2.10) over USB, using standard serial communication.
The connection itself works, but I’m having trouble accessing ...
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1
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155
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Serial.read in python is losing data
I wrote the function below to read data from a serial port. When I call it to read 33 bytes, it stops reading halfway. The bytearray msg returned contains only the first few bytes, the rest is lost. ...
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Chat App communicate over Bluetooth :React Native
I want to build an react native chat application which use the Bluetooth to communication between two user! both the user have the application and turn on their Bluetooth device and connected with ...
1
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0
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396
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Why does my Arduino IDE Serial Monitor output weird characters sometimes?
I’m working on an ESP32 project using the Arduino IDE, and occasionally, the Serial Monitor displays garbled characters instead of the expected output. The baud rate in the Serial Monitor is set to ...
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364
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Working with MODBUS RTU to read holding registers from a WAGO Power Measurement Module
I am attempting to create a GUI to communicate with a WAGO 3-Phase Power Measurement Module (Item No. 2857-570/024-005) to read measured values and change measurement parameters (referred to as WAGO ...
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877
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Issues Interfacing SIM A7670C Module with ESP32 Using AT Commands
I'm trying to interface a SIM A7670C GSM/GPRS module with an ESP32, but I'm encountering some issues in receiving proper responses using AT commands. Below are the steps I've taken so far:
Direct ...
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0
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109
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How to fetch multiple sensor data frequently from an OBD-II port using Golang?
I'm working on a car logger project that needs to log data frequently and quickly from multiple sensors using the elmobd GitHub repository for Golang. Although I have experience fetching data with ...
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serial communication php to arduino mega
i want to turn on led pin on arduino mega using php code. i'm using phpserial in order to communicate with the arduino board, but instead of turning on the new led, it turns on the last led.
below is ...
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2
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532
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12 V USB 4 channel relay controlling
I’m trying to control a relay using Python, but I’ve hit a roadblock.
Unfortunately, I couldn’t find the datasheet for this specific relay, which means I don’t have the correct commands to send.
Here’...
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STM Nucleo F091RC: Only 4 Out of 8 USART Ports Working with HardwareSerial Library – How to Fix the Remaining Ports?
I'm using Visual Studio Code with PlatformIO and the Arduino framework to work with the STM Nucleo F091RC. I'm encountering an issue where only 4 out of the 8 USART ports are responding when using the ...
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1
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137
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pySerialTransfer Two Way Communication Issues
I wrote a minimal two way python and serial communication script that sends an integer to the arduino. Then, the arduino increments the integer and sends it back over serial.
comm.py
from time import ...
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0
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169
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Send integer from STM32 board to Qt app with serial communication using UART
I'm trying to click on the read button on my Qt app and read an integer from an STM32 board.
I can send a frame from the Qt app to the STM32 board which is "5\r" and the board reads it ...
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1
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362
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Serial COM interface on OpenWRT
I'm trying to write a program for serial communication on TRB246 from Teltonika (BusyBox v1.34.1).
Incoming data is raw, in hex bytes, coming every seconds.
Three solutions:
Use microcom in a shell ...
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1
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68
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How to decode an image file received from another radio module (Raspberry Pi 4)?
I am currently using a Raspberry Pi 4 to send and receive data in Python from sensors, DHT22, AS312 etc. My main issue is when I receive an image here is the abstraction (note paths seen here aren't ...