All Questions
24
questions
0
votes
2
answers
168
views
How to write 16 bit hex codes into 93C46 EEPROM with Arduino
I am trying to write data to an EEPROM with some success but not quite. The chip is a 93C46 128 words at 8 bit or 64 words at 16 bit. The data to go in is in 64 word (16 bit) format as follows:
When ...
- 59
0
votes
1
answer
98
views
How to write a lookup-table into an 28C64 parallel EEPROM?
Based on the program from this post 28C64 EEPROM Programming Using Arduino, I would like to write, using Arduino Mega, a lookup-table that contains one sinewave cycle, created in Excel. I would like ...
- 1,411
1
vote
1
answer
230
views
What is 0-255 in EEPROM in Arduino?
I am trying to use the EEPROM in Arduino but somehow getting the wrong number. Can anyone explain to me what does that parameter 'value' of 0 to 255(byte) actually mean does it mean it can only hold a ...
- 57
1
vote
1
answer
1k
views
Does ESP32 Wroom-32 have internal EEPROM?
I'm working with ESP32 Wroom-32 and AHT25 temperature and humidity sensors. I need to store the temperature and humidity data using EEPROM.
I don't think ESP32 has internal EEPROM. If not means how ...
- 71
0
votes
0
answers
209
views
Converting an application from ESP32 board to STM32 board
I wrote an app for my ESP32 but then I learned that ESP32 doesn't work well on batteries, since they got drained pretty quickly.
So I bought a STM-32 board (NUCLEO-32, STM32L432KC MCU): https://www....
1
vote
0
answers
98
views
Not being able to write&read data from the 24C04N EEPROM using I2C
I have connected the 24C04N EEPROM to the ATmega328p like this -
Image source - Google
The only difference is I connected the ATmega328p on a breadboard using FTDI like this -
Image source - This is ...
- 45
1
vote
0
answers
336
views
USB to Ethernet controller, RTL8153, without EEPROM and only 3.3 V
I want to implement an RTL8153 controller in the simplest and most compact way possible on the PCB of an Arduino project. It's a driver-free (CDC-ECM) USB to Ethernet PHY controller.
Can it be used ...
- 11
0
votes
3
answers
1k
views
Microcontroller- Run program directly off external EEPROM
I am working on a project, and for it I need to run a microcontroller program off of an EEPROM. I know I can set it up with an Arduino to load the program into internal memory and run it from there, ...
5
votes
3
answers
300
views
How do I edit the EEPROM of a K30 CO2 sensor?
EDIT - Corrected code is at the bottom of the OP.
Background
While working on a circuit to log carbon dioxide with a K30 CO2 sensor using an Adafruit Data Logging Shield, I ran into a problem. The ...
- 155
0
votes
1
answer
73
views
How to control 12 V with Arduino's 5 V pins?
I'm trying to program a parallel EEPROM which requires Vpp high voltage cycle to write a byte. I want to control Vpp with an Arduino pin so I can write a byte onto an address in EEPROM. But I couldn't ...
user274639
0
votes
1
answer
143
views
Arduino based EEPROM programmer acts weird
I use an Arduino Mega to program an AT28C256 by using this code [1], but there is a weird issue!
The Arduino's pin 41 is connected to the AT28C256's pin 16 which is I/O 4. It works without any problem ...
- 153
0
votes
0
answers
309
views
24lc256 EEPROM page writing problem
I have a question about my EEPROM Project recently started. why there is a maximum of 16-byte is Writing into EEPROM in below code. when we able to writing 64byte into the single page using page write ...
- 1
-1
votes
4
answers
257
views
Flash or EEPROM
EEPROM vs SD Flash
I am working on a Arduino program (a game, a slot machine) that needs to store 16 bitmaps (the slot machine symbols) that are 32 * 16 bytes each (total 8192 bytes). The bitmaps are ...
- 176
1
vote
2
answers
771
views
Looking for a way to re-program 16x2 LCD display EEPROM font
Some time ago I've seen this topic - asking where does the fonts stored in 16x2 (1602) LCD display.
Does a 16x2 LCD display has its own EEPROM?
I'm really interested in this, and didn't find any ...
- 25
2
votes
2
answers
2k
views
ATMEL 24C02 EEPROM - Trouble understanding how the addressing works
I am currently writing a library for ATMEL's 24C series EEPROMs (not a programming question). The library works fine with a single EEPROM at the moment and I am trying to support multiple EEPROMs now, ...
user193111