Crate lm75[−][src]
This is a platform agnostic Rust driver for the LM75 temperature
sensor and thermal watchdog, based on the embedded-hal
traits.
This driver allows you to:
- Enable/disable the device.
- Read the temperature.
The device
The LM75 temperature sensor includes a delta-sigma analog-to-digital converter, and a digital overtemperature detector. The host can query the LM75 through its I2C interface to read temperature at any time. The open-drain overtemperature output (OS) sinks current when the programmable temperature limit is exceeded. The OS output operates in either of two modes, comparator or interrupt. The host controls the temperature at which the alarm is asserted (TOS) and the hysteresis temperature below which the alarm condition is not valid (THYST). Also, the LM75's TOS and THYST registers can be read by the host. The address of the LM75 is set with three pins to allow multiple devices to work on the same bus. Power-up is in comparator mode, with defaults of TOS= +80ºC and THYST= +75ºC. The 3.0V to 5.5V supply voltage range, low supply current, and I2C interface make the LM75 ideal for many applications in thermal management and protection.
Datasheet:
This driver is also compatible with LM75A, LM75B and LM75C: LM75B/C Datasheet
And also at least with the devices MAX7500, MAX6625, MAX6626, DS75LV, and DS7505.
Usage examples (see also examples folder)
Read temperature
Import this crate and an embedded_hal
implementation, then instantiate
the device:
extern crate linux_embedded_hal as hal; extern crate lm75; use hal::I2cdev; use lm75::{ Lm75, SlaveAddr }; let dev = I2cdev::new("/dev/i2c-1").unwrap(); let address = SlaveAddr::default(); let mut sensor = Lm75::new(dev, address); let temperature = sensor.read_temperature().unwrap(); println!("Temperature: {}", temperature);
Provide an alternative address
extern crate linux_embedded_hal as hal; extern crate lm75; use hal::I2cdev; use lm75::{ Lm75, SlaveAddr }; let dev = I2cdev::new("/dev/i2c-1").unwrap(); let (a2, a1, a0) = (false, false, true); let address = SlaveAddr::Alternative(a2, a1, a0); let mut sensor = Lm75::new(dev, address);
Enable / disable the sensor
extern crate linux_embedded_hal as hal; extern crate lm75; use hal::I2cdev; use lm75::{ Lm75, SlaveAddr }; let dev = I2cdev::new("/dev/i2c-1").unwrap(); let mut sensor = Lm75::new(dev, SlaveAddr::default()); sensor.disable().unwrap(); // shutdown sensor.enable().unwrap();
Structs
Lm75 |
LM75 device driver. |
Enums
Error |
All possible errors in this crate |
SlaveAddr |
Possible slave addresses |