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urbanze opened this issue Sep 11, 2017 · 5 comments
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Change Arduino SDK #625

urbanze opened this issue Sep 11, 2017 · 5 comments

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@urbanze
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urbanze commented Sep 11, 2017 •
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Hi! I using idf-component to use this mcu (to change sdk configs in arduino ide) and I can't find how to read temperature sensor. How can I do this ?

ps: I tryed app_main with and without InitArduino(), both worked. What this function do ?
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Hardware:

Board: ESP32 DoIt Nodemcu
Core Installation/update date: ?11/jul/2017?
IDE name: IDF component with Arduino boot
Flash Frequency: 80Mhz
Upload Speed: 115200
@copercini
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@urbanze what temperature sensor?

@urbanze
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urbanze commented Sep 16, 2017

image

This sensor, from technical_reference datasheet.

@copercini
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copercini commented Sep 16, 2017 •
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There are some examples from @pcbreflux here: https://github.com/pcbreflux/espressif/blob/master/esp32/arduino/sketchbook/ESP32_int_temp_sensor/ESP32_int_temp_sensor.ino

Also a video explaining the things: https://www.youtube.com/watch?v=d57LKkHCVgI

PS: here has a discussion of how accurate it is and what is the best way to read the internal temperature: espressif/esp-idf#146

@copercini copercini mentioned this issue Sep 16, 2017
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@urbanze
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urbanze commented Sep 16, 2017

Oh, the secret of temperature sensor is "extern "C" "........ I forgot this -_-. Thank you for reply, see you later :D

@urbanze urbanze closed this as completed Sep 16, 2017
@copercini
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See you =)

me-no-dev added a commit that referenced this issue Sep 18, 2017
@me-no-dev
Add api to get CPU temperature
db79c2e 
Fixes: #563
Fixes: #625
Source:
https://github.com/pcbreflux/espressif/blob/master/esp32/arduino/sketchb
ook/ESP32_int_temp_sensor/ESP32_int_temp_sensor.ino
@nikisalli nikisalli mentioned this issue Feb 4, 2019
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blue-2357 pushed a commit to blue-2357/arduino-esp32 that referenced this issue Jul 17, 2024
Add api to get CPU temperature
e751715 
Fixes: espressif/arduino-esp32#563
Fixes: espressif/arduino-esp32#625
Source:
https://github.com/pcbreflux/espressif/blob/master/esp32/arduino/sketchb
ook/ESP32_int_temp_sensor/ESP32_int_temp_sensor.ino
dash0820 added a commit to dash0820/arduino-esp32-stripped that referenced this issue Mar 10, 2025
@dash0820
Add api to get CPU temperature
0992324 
Fixes: espressif/arduino-esp32#563
Fixes: espressif/arduino-esp32#625
Source:
https://github.com/pcbreflux/espressif/blob/master/esp32/arduino/sketchb
ook/ESP32_int_temp_sensor/ESP32_int_temp_sensor.ino
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@copercini @urbanze