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Questions tagged [calculation]

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A mathematical determination of the size or number of something.

16 questions
Newest Active Bountied Unanswered
2 votes
1 answer
344 views

I have a really simple snippet of code wherein the same calculation outputs different values depending on how I do the calculation. The platform that I am running this code on is an Arduino Uno - with ...
Archit K's user avatar
  • 23
2 votes
1 answer
366 views

I have a project plan in which there are calculations that require high precision, which later will have calculations with numbers after commas such as 245.5431657288. from some of the information ...
sagise's user avatar
  • 31
2 votes
4 answers
909 views

First post here. So I have an issue, which I have identified, but I'm not quite sure how to fix it. I'd really appreciate some input and suggestions. I realize that my "pwmDelta" is the problem, but I ...
gfritz25's user avatar
  • 21
0 votes
1 answer
78 views

I have a program that receives 4 commands on 4 channels to change the color of an LED using mqtt communication. Lets just focus on two of the channels, the time and the red. I am sending a length of ...
Jordan Klaers's user avatar
  • 27
0 votes
1 answer
2k views

I want to enable user to change the duration of PWM from 0 to 255, the number should be in minute and increase/decrease with two push buttons. (X) x 255 / 60000 = minute In above example each time ...
ElectronSurf's user avatar
  • 814
-2 votes
1 answer
920 views

To convert a PWM signal to a DC voltage it must be filtered with a low pass filter. How can you know which cut-off frequency should be used and how do you calculate the values for the resistor and ...
Sophie's user avatar
  • 1
0 votes
1 answer
211 views

I'm mapping a potentiometer from 0-1023 to 1000-120000 (1 sec to 2 minutes) for a timer, like: maxDelay = map (pot2, 0, 1023, 1000, 120000); Both variables are integers. Now I would like to convert/...
Emerson's user avatar
  • 105
1 vote
3 answers
1k views

Im using the SparkFun MAG3110 3D sensor: https://www.sparkfun.com/products/12670 My application is essentially to make a contactless "magnetic joystick" using a local magnet for accurate and constant ...
dandev's user avatar
  • 53
0 votes
2 answers
1k views

I want to wrap a random number using modulo, so that values exceeding 11 starts over from 0 and greater. However, i would also like numbers less than 0 to dividend 11 or less. Please correct me if i'...
Erik's user avatar
  • 271
1 vote
2 answers
2k views

I am trying to add two 16 digit binary numbers together. Each binary number will have been entered by the user and saved as: int binaryOne[16] and int binaryTwo[16]. Originally, int binaryOne[16] = {...
Katie's user avatar
  • 43
2 votes
1 answer
1k views

I am using an Arduino Uno, and I need to create a program that calculates the actual baud rate and the percent error for all standard baud rate in Arduino monitor program.
jasmine's user avatar
  • 21
1 vote
2 answers
230 views

When i press a button to subtract 1 from 5 it skips to 3, it's the same when I add 1 to -5 it skips displaying - 4 and goes straight to -3. This is the code that i am using: //Testing the use of ...
Liam's user avatar
  • 167
-1 votes
3 answers
580 views

I want to create an integer whose total value cannot go beyond a range of numbers when added to and subtracted from. For example, if the "total_value" started at 0 (of a total possible range between -...
Liam's user avatar
  • 167
0 votes
2 answers
7k views

I'm struggling with get suitable step delay while driving a stepper motor. How to calculate exact step delay for 1.8deg/step stepper motor? Give some example calculation.
user_fs10's user avatar
  • 187
2 votes
4 answers
14k views

I'm using a Arduino Uno to read pressure and I want to know if I have wired/coded the sensor correctly. I'm not sure I'm getting the correct readings (it could be the right readings - I just want to ...
resolver101's user avatar
  • 155

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