My MAX31865 does not work

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FFFTUI
 
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My MAX31865 does not work

Post by FFFTUI »

Excuse me,When I use an example of a URL like the following:https://learn.adafruit.com/adafruit-max ... r?view=all.
I'm sad I can't compile successfully normally.
It all time shows:
RTD value: 32767
Ratio = 0.99996948
Resistance = 4299.86877441
Temperature = 988.79
Fault 0x80
RTD High Threshold.


How can I solve this problem,please

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adafruit_support_carter
 
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Re: My MAX31865 does not work

Post by adafruit_support_carter »

It could be a connection issue. Please post a photo of your setup showing how everything is connected.

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FFFTUI
 
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Re: My MAX31865 does not work

Post by FFFTUI »

1.jpg
1.jpg (39.34 KiB) Viewed 46 times
2.jpg
2.jpg (195.13 KiB) Viewed 46 times
adafruit_support_carter wrote:It could be a connection issue. Please post a photo of your setup showing how everything is connected.
hi,that is all my connection

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FFFTUI
 
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Re: My MAX31865 does not work

Post by FFFTUI »

3.jpg
3.jpg (97.38 KiB) Viewed 46 times
adafruit_support_carter wrote:It could be a connection issue. Please post a photo of your setup showing how everything is connected.
and this is the datasheet of esp32

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adafruit_support_carter
 
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Re: My MAX31865 does not work

Post by adafruit_support_carter »

That breakout does not appear to be one from Adafruit. Looks like a clone.

Maybe try:
MAX SDO should go to the DI pin on the ESP32
MAX SDI should go to the DO pin on the ESP32
(looks like those wires might be backwards)

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