Questions tagged [bytes]
A group of binary digits or bits (usually eight) operated on as a unit.
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Having Trouble Decoding UART Signal with Logic Analyzer - Need Suggestions [closed]
I've been working on decoding a UART-like signal, and while I've made some progress, I've hit a roadblock. I have a portion of the code that's currently working, but I believe there might be a better ...
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How to get recover numeric data sent by an Arduino in binary
I am a C# dev and these C++ data conversions are killing me.
I have an Arduino sending binary data through LoRaWAN to AzureIOT. I am trying to decode my Temp/Humid/Bat payload that I am pulling out of ...
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Parse char* mac-string to uint8_t array
I have to handle a String coming in over UART containing a bunch of information, part of it is a MAC-address that I get by using String.substring(a, b) returning a 12-char String representing a mac-...
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Modbus RS485 Decode the message received
I'm try to read some value from a soil NPK sensor using RS485 Modbus e Arduino uno.
I menage to sent the request msg and I got the response but now i don't know how to read the response in order to ...
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1
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Changing single bit in byte array
So I have a byte-array representing the display attached to my Arduino:
byte theDisplay[8] = {
B00000000,
B00000000,
B00000000,
B00000000,
B00000000,
B00000000,
B00000000,
...
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Pass Byte Array to Char and Send to a Separate Arduino
I am trying to send data between Arduino Nano and D1 Mini (ESP 8266 Module)
My Code as below in Nano which will be the transmeting ,
#include <DES.h>
#include <SoftwareSerial.h>
...
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Arduino Serial Monitor Input 3DES Encryption
I am trying to 3DES encryption using Serial Read, Found this 3DES Sample code in Github,
#include <DES.h>
DES des;
void setup() {
Serial.begin(9600);
Serial.println("Hello!");
}
...
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2
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355
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Why float and not 16-bit Integer? Mpu6050 with atmega328P
I've been trying to follow this example code for interfacing my atmega328P with Mpu6050:
https://www.instructables.com/Accelerometer-MPU-6050-Communication-With-AVR-MCU/
And was wondering a couple of ...
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Is there a variable type of half byte? Is there a workaround?
I have this long array of 64 values going from 0 to 15, values which only cost 8 bits, for a pulse width modulation.
So I made a test to see its cost in space, commenting one of the two arrays.
const ...
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Reading Buffer from Software-Serial & Writing to Serial
My progress so far:
#include <SoftwareSerial.h>
SoftwareSerial ttySerial(10, 11); // RX, TX
byte buffer;
void setup()
{
// Open serial communications and wait for port to open:
Serial....
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RF24 library commands, channel, and address
I'm trying to use the RF24 library for wireless communication.
However, it appeared that this library does not have "help" option.
There was a keywords file but it did not explain what it does.
I ...
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3
answers
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Set and extract individual bytes of a number (lowByte() and highByte())
You can extract
the low-order (rightmost) byte of a variable
or
the high-order (leftmost) byte of a word
with the functions lowByte() and highByte() respectively (the quotes are from the ...
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need to compare if a byte is less than 80 hex
I am using an infrared sensor called OTI301. In its data sheet it says that in order to obtain object temperature and ambient temperature values I need to extract the binary information from the ...
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2
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How to convert char[12] to byte[6]
I am trying to convert a char[12] array that contains a Mac Address into a byte[6] in order to use within the Ethernet.begin method. I have tried various methods from online, but had little success to ...
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How to modify a created byte?
I have created a byte for 16x2 LCD. It is basically a custom character which I will have to change later.
byte char[8]{
B10000,
B01000,
B00100,
B00010,
B00001,
B11000,
B11100
};
I want to ...
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USing arrays, binary data and bitRead
This is my first manually typed code. I'm sure there may be some glaring "schoolboy errors" in it, so wondered if people could give it the 'once over' In particular, I have never used C++ arrays, ...
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Arduino will not read three successive packets in the serial connection
I have written a small program to send serial commands from Python to the Arduino Micro. This is my code for both:
Python
import serial
ser = serial.Serial('COM5', 9600)
ser.write(b'0')
ser.write(...
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1
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Passing arrays, global arrays within functions, pointers, and declaring array sizes
I'm super confused right about now!
I've been working on project involving Xbees in API mode, and I need to send different arrays of bytes to the Xbee depending on which buttons I press. Mostly what ...
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