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en-us_commands:reference:ntcread

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ntcRead()

ntcRead() returns the temperature of an NTC 3950 10kΩ sensor as an integer in 0.1℃ units.

ntcRead command operation flow

int ntcRead(uint8_t ch)

Commands

Command Arguments Return Value Operation
ntcRead(ch) uint8_t ch — MPINO: analog pin number; MPAINO: overall analog input channel number int Returns the temperature of an NTC 3950 10kΩ sensor as an integer in 0.1℃ units.

Example

void loop() {
  int temp10 = ntcRead(4);
  Serial.println(temp10 / 10.0);
  delay(500);
}

Precautions

  • ntcRead() is based on an NTC 3950, 10kΩ at 25 C sensor.
  • ntcReadf() divides the ntcRead() result by 10.0F, so its resolution remains 0.1 C.
  • Connecting a sensor with a different B value, reference resistance or wiring configuration causes temperature errors.
  • On MPAINO, the temperature is incorrect unless the DIP switch is in NTC mode.
  • On MPAINO, the first call internally initializes only the corresponding analog input module.

← Built-in Command List

en-us_commands/reference/ntcread.1788785569.txt.gz · Last modified: by 127.0.0.1

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