Hi all, I'm trying to make a program to randomly choose from a selection of words to blink it with Morse code via a LED. However, even when I used a randomSeed() and using a analog port with nothing attached, the word always is 'BISTRO' when I use the roll() function. How can I get the word to rando…

The current version. [image] The reliable but not very sexy way to seed random Libraries #include <EEPROM.h> void reseedRandom( void ) { static const uint32_t HappyPrime = 937; union { uint32_t i; uint8_t b[4]; } raw; int8_t i; unsigned int seed; …

This comment is not correct. For analogRead(), pinMode() is not used. //Sets up analog port - connected to nothing to make random values pinMode(randPort, INPUT); There is no guarantee that analogRead() on a disconnected pin will return a random value. The voltage on the pin may be stuck at 0, V…

[image] Trying to randomize a selection of a word Programming Questions The current version. Thanks, but even when I put that in it still only displays 'BISTRO' in the Serial whenever I start the sketch. Is the fact that I'm using the random() in a different method ca…

even when I put that in You probably made a mistake. Post the code, every time, so we have some idea what you are talking about. The best approach is to break the problem down. Forget the current code, and write a tiny program that works just to generate a single random number, different every …

I just made a new smaller code and it works! Put it back into the project and I got it working. Thanks and sorry if this was simple, im still quite new. #include <EEPROM.h> int port = 12; int randPort = A0; int repeatWord = 2750; int betweenLetter = 1250; int dot = 400; int dash = 1000; int between…

A smaller and better version of that randomizing code is found in the "final" post of that thread, here: [image] The reliable but not very sexy way to seed random Libraries The latest version... #include <avr/eeprom.h> /*==================================================…

[image] gold523: //Gets an word for the morse to use - only once String message = roll(); void loop() { ... String roll(){ randomSeed(analogRead(randPort)); You are calling roll() to initialize a global variable. This is done BEFORE the Arduino core is initialized. It is entirely possibl…

Trying to randomize a selection of a word

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Coding_Badly December 17, 2021, 1:37am 3

The current version.

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Trying to randomize a selection of a word

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