en-us_commands:reference:ntcread
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Table of Contents
ntcRead()
ntcRead() returns the temperature of an NTC 3950 10kΩ sensor as an integer in 0.1℃ units.
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 setup() { Serial.begin(115200); } void loop() { int temp10 = ntcRead(0); // Return the NTC 3950 10kΩ sensor temperature as an integer in 0.1°C units. float tempC = ntcReadf(0); // Return the NTC 3950 10kΩ sensor temperature as a floating-point value in °C. Serial.print("NTC = "); Serial.print(tempC, 1); Serial.println(" C"); delay(500); }
Precautions
ntcRead()is based on an NTC 3950, 10kΩ at 25 C sensor.ntcReadf()divides thentcRead()result by10.0F, so its resolution remains0.1 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.
en-us_commands/reference/ntcread.1788791735.txt.gz · Last modified: by 127.0.0.1
