Module tsens

Available on crate feature unstable only.

Temperature Sensor (tsens)

Overview

The Temperature Sensor peripheral is used to measure the internal temperature inside the chip. The voltage is internally converted via an ADC into a digital value, and has a measuring range of –40 °C to 125 °C. The temperature value depends on factors like microcontroller clock frequency or I/O load. Generally, the chip’s internal temperature is higher than the operating ambient temperature.

It is recommended to wait a few hundred microseconds after turning it on before measuring, in order to allow the sensor to stabilize.

Configuration

The temperature sensor can be configured with different clock sources.

Examples

The following example will measure the internal chip temperature every second, and print it

let temperature_sensor = TemperatureSensor::new(
        peripherals.TSENS,
        Config::default())?;
let delay = Delay::new();
delay.delay_micros(200);
loop {
  let temp = temperature_sensor.get_temperature();
  println!("Temperature: {:.2}°C", temp.to_celcius());
  delay.delay_millis(1_000);
}

Implementation State

• Temperature calibration range is not supported
• Interrupts are not supported

Structs

Config

Temperature sensor configuration

Temperature

Temperature value This struct stores the raw ADC value, and can be used to calculate the temperature in Celsius using the formula: (raw_value * 0.4386) - (offset * 27.88) - 20.52

TemperatureSensor

Temperature sensor driver

Enums

ClockSource

Clock source for the temperature sensor

ConfigError

Temperature sensor configuration error