All Questions
Tagged with eeprom arduino-mega
10 questions
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Arduino Mega as a EEPROM Programmer for Winbond W29EE011 memories
I'm trying to use my Arduino Mega as an EEPROM memory writer. For this project, besides my Arduino Mega, I use an SD Card module, an LCD display and two push buttons to handle the events. Inside the ...
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1
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134
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Reading a flash ROM chip (M45PE20) through SPI with an ATMEGA 2560 -- output only FF's
I'm trying to communicate through SPI to a Flash ROM chip (M45PE20) with an ATMEGA 2560. I'm looking to read the data off the chip, but the output I'm getting is nothing but FF's. I've checked my ...
- 11
2
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3
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294
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Arduino Mega keep states after reprogramming
Based on:
https://forum.arduino.cc/index.php?topic=440978.0
And some previous experience with Arduinos. What I would like to accomplish here is that I have a 8 channel relay board with the relays in ...
- 21
1
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Stuck in a loop when reading from EEPROM, works if I clear it first
EDIT: The problem was caused by storing a pointer in the EEPROM. Thanks to @KIIV for helping out
Sorry for the enormous of wall of text, I'm trying to pare it down a bit.
I have two Arduino Megas ...
1
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203
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Problem Writing/Reading EEPROM on MEGA
I want to make a program that writes on the EEPROM some structs, the final device will take structs of RGB LED data:
typedef struct{
unsigned char r;
unsigned char g;
unsigned char b;
} ...
3
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4
answers
4k
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Storing a counter to EEPROM - how to extend the life?
I am building a circuit that has a button, which when pressed, should increment a counter. I want to store this counter so that when I power off my circuit, it can be read when I power it back on. ...
- 131
1
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2
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303
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Passing variable value in structure object
in this code i want to pass value of variable char array 'pass' in object "MyObject". But i am getting this error.
Arduino: 1.6.11 (Windows 8.1), Board: "Arduino/Genuino Mega or Mega 2560, ...
- 315
1
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2
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4k
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How do I write and read internal EEPROM?
I am working on an Arduino Mega 2560. I want to read and write the internal EEPROM.
Can I use EEPROM.get()/EEPROM.put()?
I want to store 3 things in EEPROM:
Boolean status.
String password: length ...
- 315
0
votes
2
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795
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Store data in flash/EEPROM and process it in parallel
I want to store incoming data in flash or EEPROM and then apply FFT or some other method to detect frequency and intensity.
I am taking sound through microphone amplifying it with an LM741 and giving ...
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2
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0
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575
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Arduino EEPROMex library problem
I am trying to write a float value to the EEPROM on an Arduino MEGA2560. According to some research I should use Arduino EEPROMex library. I added the library to Arduino, but I get the message "EEPROM ...
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