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Questions tagged [code-optimization]

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The process of improving the efficiency of a program such that is uses less memory and/or less computational time.

132 questions
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3 votes
2 answers
1k views

I feel a little like I am back in 1975 trying to fit my code in 4K of RAM. I am writing some code for an ATTiny88, and the code is starting to get big, relatively speaking. I need to save every byte ...
LesRhorer's user avatar
  • 113
1 vote
0 answers
61 views

Please let me know if this post has the wrong tags, I will make sure to change it. My goal is to get the highest sampling rate possible from the Adafruit LSM6DSOX (6667Hz) using the Arduino MKR WIFI ...
infinite_yeet's user avatar
  • 11
1 vote
1 answer
286 views

I want to check for specific string (like "RecordStart") in a UART stream (115 200 baud 8N1) from a camera, to know when it is recording or not/if there is an SD. I am using an ESP32-WROOM-...
AyubowanPro's user avatar
  • 13
0 votes
2 answers
473 views

I'm working on a little midi hardware project and I'm using attachInterrupt() to assign a callback function to an interrupt pin. Nothing gets done in the loop function, so it looks like this: void ...
strudelkopf's user avatar
  • 119
-1 votes
3 answers
359 views

I am actually wondering if there's a way to efficiently do this block of code. There are two things in my specifications and these are: Four IR Sensors that detects blockage. Basically just to ...
fireblazer10's user avatar
  • 111
4 votes
2 answers
413 views

I'm working on a project with a Digispark ATTiny85, that performs keystrokes using the DigisparkKeyboard library (https://github.com/digistump/DigisparkArduinoIntegration/tree/master/libraries/...
emma.makes's user avatar
  • 105
7 votes
4 answers
1k views

I'm trying to squeeze code onto an ATtiny10, but I'm just not getting there. I'm using 1060 bytes and only have space for 1024 bytes. The code is simple enough; I need to read a button pin. If high it ...
Earthbound Ruben's user avatar
  • 111
2 votes
2 answers
2k views

Background I'm reading a 24-bit ADC value into a uint32. Using SPI bus, here's the logic: value = SPI.transfer(0); // read first 8 bits (MSB first) value <<= 8; // shift ...
hazymat's user avatar
  • 121
-2 votes
1 answer
701 views

I am new to programming and am trying to create an array of 10 thermistors on one arduino. So far I have found a code for Temperature Sensor Using NTC Thermistor that is only for one thermistor. How ...
Jen's user avatar
  • 1
0 votes
1 answer
2k views

I'm trying to build arduino nonce generator, but the only thing I found is this question on arduino forum but I can't find out how to make it work for me. I checked and Serial.available() is always 0 ...
krystof18's user avatar
  • 315
1 vote
0 answers
93 views

I am using a ATTINY85 Digispark board with an IR receiver to light some LEDs in my project. The Digispark has a limitation that does not allow it to use the IRremote.h library. I know that there a ...
user3347814's user avatar
  • 123
0 votes
1 answer
146 views

I'm a newbie to arduino but been programming lots. I have a project where I would like to output 4 bits to adjacent pins and read 4 bits from another (4) adjacent pins. (Imagine a matrix keyboard ...
Dave's user avatar
  • 11
1 vote
0 answers
69 views

Can Windows 10 computer use Arduino IDE 1.8.10 sometimes, AND use Arduino IDE 2.0.0 the rest of the time?
martymarty's user avatar
  • 111
1 vote
0 answers
1k views

I am trying to send data from one arduino to another over ethernet using udp protocol. In arduino writing data over udp is like this UDP.write(buffer, size); where buffer is an array to send as a ...
eToll Systems's user avatar
  • 61
1 vote
1 answer
405 views

i am able to send audio signal through mic and send it via arduino and receive it on speaker. i need two things 1.) The voice i am hearing on speaker has on speaker has lots of noise with it. i need ...
sanket jain's user avatar
  • 11

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