I am writing first time on this site. I hope to find help for my interfacing problem. I also hope to give some help to other users.
I have WeMos D1 Mini Pro and AF Max31865 boards connected together. But I can’t get out the temperature inf.
- Board setting is: LOLIN (WEMOS) D1 Mini Pro
- Uploaded program: max31865.ino
- Library: <Adafruit_MAX31865.h>
- HW SPI: Adafruit_MAX31865 maxthermo = Adafruit_MAX31865(8) ;
I have gotten next message:
"Adafruit MAX31865 PT100 Sensor Test! ets Jan 8 2013,rst cause:4, boot mode:(3,6) wdt reset load 0x4010f000, len 1384, room 16 tail 8 chksum 0x2d csum 0x2d v8b899c12 ~ld"
I have tested this with Arduino Uno (same max31865) and it works fine.
Help me, please!
Hello, unfortunately I’ve never used that module before… Is that library compatible with the ESP8266? Did you double-check the wiring?
Are you using the ESP examples from the library?
Thanks for your patience.
I selected this card for get longer WiFi distance by external antenna possible.
I have now checked wiring and library. I had to change some variable names. Compiler didn’t accept the name “max”. I changed it to “maxthermo”.
Then I tried to s/w spi with pins:
IO, 10k Pull-down, SS
Now D1 don’t restart but give error from MAX31865:
TD value: 32767
Ratio = 0.99996948
Resistance = 429.98687744
Temperature = 988.79
RTD High Threshold
RTD Low Threshold
REFIN- > 0.85 x Bias
REFIN- < 0.85 x Bias – FORCE- open
RTDIN- < 0.85 x Bias – FORCE- open
Weii, Checking the sensor wires and fixed those their correct´pins…….
I got the result:
RTD value: 8381
Ratio = 0.25576782
Resistance = 109.98016357
Temperature = 25.63
Thanks for keep me trying!
Hello, I’m glad you figured it out. As I’ve mentioned, I’ve never used that module, so I also wasn’t sure how to make it work…
I apologize for taking so long to get back to you, but I’ve been with very limited Internet for the last couple of days. I’m finally catching up and I’ll try to give you a faster response.
Thanks for your patience! Regards,