Arduino Sends Correct Temp, ESP32 Receives 0xFF/NaN

my codes ESP.zip (7.0 KB)
ARDDD.zip (8.7 KB)

send data(-- SPI ISR Debug Info (Loop) ---
ISR Call Count: 1
ISR Entered Last: NO
SPRF Set in ISR Last: NO
Received Byte in ISR Last: 0xFF
CMD_REQUEST_DATA Match Last: NO
TX Started in ISR Last: NO
TX Remaining at Start Last: 0
Last Byte Sent by ISR (approx) Last: 0xFFFF
[Debug] Helmet Status (from helmetWorn_g): OFF
[Debug] Warning Status (from warningActive_g): NO
[Debug] Fall Status (from fallActive_g): NO
[Debug] Alcohol Pin (A0) Raw Value: 31
[Debug] MLX90640 프레임 읽기 시도... 성공.
Thermal Sample [0]: 26.5 | Sample [middle]: 25.6 | Sample [end-1]: 26.8
[Debug] 계산된 체크섬: 0xD9
Helmet Worn: OFF

Warning Active: NO

Fall Active: NO

Alcohol Value: 31

Thermal Frame (32x24 Full Data):

Row 0: 26.5 25.3 26.2 26.0 25.9 25.8 25.1 26.0 25.7 25.5 25.9 25.9 25.7 25.5 25.6 25.9 25.9 25.2 25.4 25.5 25.6 25.0 25.6 25.4 25.1 24.8 25.0 25.3 25.2 25.6 26.0 25.8

Row 1: 25.9 25.5 26.2 25.9 25.6 25.3 25.9 26.1 25.3 25.9 25.7 26.2 25.9 25.9 26.0 26.6 25.0 25.8 25.5 25.8 25.2 25.5 25.4 25.0 25.0 25.5 25.6 25.6 25.3 25.4 25.7 26.4

Row 2: 26.5 25.8 26.3 26.7 25.8 25.4 26.0 25.8 25.8 25.4 25.5 25.9 26.1 25.7 25.7 25.8 25.2 25.2 25.3 25.5 25.7 25.6 25.4 25.5 25.2 25.4 24.8 25.5 25.6 25.3 25.5 25.8)

블록 따옴표

receives data(
Requesting data via SPI...

SPI transaction finished.

Raw SPI Bytes Received (first 32 bytes): FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF


Printing Buffer: SPI Received Data (Raw, Before Checksum)


Helmet Worn: ON

Warning Active: YES

Fall Active: YES

Alcohol Value: -1

Thermal Frame (32x24 Full Data):

ow 0: nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan
Row 1: nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan
Thermal Frame Average Temp (of valid pixels): 0.0

Checksum (from packet): 0xFF


SPI DATA CHECKSUM MISMATCH! Arduino Sent CS: 0xFF, ESP32 Calculated CS: 0x00

Requesting data via SPI...

SPI transaction finished.

Raw SPI Bytes Received (first 32 bytes): FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF)

please help me

I moved your topic to an appropriate forum category @1hp_student.

In the future, when creating a topic please take some time to pick the forum category that best suits the subject of your topic. There is an "About the _____ category" topic at the top of each category that explains its purpose.

This is an important part of responsible forum usage, as explained in the "How to get the best out of this forum" guide. The guide contains a lot of other useful information. Please read it.

Thanks in advance for your cooperation.

I wish you the best of luck but I will be surprised if you get a reasonable answer.

If you would spend some time reading the forum guidelines and post accordingly along with an annotated schematic should get you a good answer in a short time. I will spend the time needed to figure out your word salad helping other users in place of you.

1. Which Arduino (UNO/NANO/MEGA) is the sender?
2. Which ESP32 (ESP32 standard, ESP32-C3) is the receiver?
3. Which commuication protocol (I2C, UART, SPI) is being used?