#include "Arduino.h"
#include <Adafruit_BusIO_Register.h>
#include <Adafruit_I2CDevice.h>
#include <Wire.h>

Classes
class	Adafruit_EMC2101
	Class that stores state and functions for interacting with the EMC2101 Temperature monitor and fan controller. More...

Macros
#define	EMC2101_I2CADDR_DEFAULT 0x4C
	EMC2101 default i2c address.

#define	EMC2101_CHIP_ID 0x16
	EMC2101 default device id from part id.

#define	EMC2101_ALT_CHIP_ID 0x28
	EMC2101 alternate device id from part id.

#define	EMC2101_WHOAMI 0xFD
	Chip ID register.

#define	EMC2101_INTERNAL_TEMP 0x00
	The internal temperature register.

#define	EMC2101_EXTERNAL_TEMP_MSB 0x01
	high byte for the external temperature reading

#define	EMC2101_EXTERNAL_TEMP_LSB 0x10
	low byte for the external temperature reading

#define	EMC2101_STATUS 0x02
	Status register.

#define	EMC2101_REG_CONFIG 0x03
	configuration register

#define	EMC2101_REG_DATA_RATE 0x04
	Data rate config.

#define	EMC2101_TEMP_FORCE 0x0C
	Temp force setting for LUT testing.

#define	EMC2101_TACH_LSB 0x46
	Tach RPM data low byte.

#define	EMC2101_TACH_MSB 0x47
	Tach RPM data high byte.

#define	EMC2101_TACH_LIMIT_LSB 0x48
	Tach low-speed setting low byte. INVERSE OF THE SPEED.

#define	EMC2101_TACH_LIMIT_MSB 0x49
	Tach low-speed setting high byte. INVERSE OF THE SPEED.

#define	EMC2101_FAN_CONFIG 0x4A
	General fan config register.

#define	EMC2101_FAN_SPINUP 0x4B
	Fan spinup behavior settings.

#define	EMC2101_REG_FAN_SETTING 0x4C
	Fan speed for non-LUT settings, as a % PWM duty cycle.

#define	EMC2101_PWM_FREQ 0x4D
	PWM frequency setting.

#define	EMC2101_PWM_DIV 0x4E
	PWM frequency divisor.

#define	EMC2101_LUT_HYSTERESIS 0x4F
	The hysteresis value for LUT lookups when temp is decreasing.

#define	EMC2101_LUT_START 0x50
	The first temp threshold register.

#define	EMC2101_TEMP_FILTER 0xBF
	The external temperature sensor filtering behavior.

#define	EMC2101_REG_PARTID 0xFD
	0x16

#define	EMC2101_REG_MFGID 0xFE
	0xFF16

#define	MAX_LUT_SPEED 0x3F
	6-bit value

#define	MAX_LUT_TEMP 0x7F
	7-bit

#define	EMC2101_I2C_ADDR 0x4C
	The default I2C address.

#define	EMC2101_FAN_RPM_NUMERATOR 5400000
	Conversion unit to convert LSBs to fan RPM.

#define	_TEMP_LSB 0.125
	single bit value for internal temperature readings

Enumerations
enum	emc2101_rate_t { EMC2101_RATE_1_16_HZ, EMC2101_RATE_1_8_HZ, EMC2101_RATE_1_4_HZ, EMC2101_RATE_1_2_HZ, EMC2101_RATE_1_HZ, EMC2101_RATE_2_HZ, EMC2101_RATE_4_HZ, EMC2101_RATE_8_HZ, EMC2101_RATE_16_HZ, EMC2101_RATE_32_HZ }
	Allowed values for `setDataRate`. More...

Detailed Description

I2C Driver for the Adafruit EMC2101 Temperature monitor and fan controller This is a library is written to work with the Adafruit EMC2101 breakout: https://www.adafruit.com/products/47nn

Adafruit invests time and resources providing this open source code,

please support Adafruit and open-source hardware by purchasing products from Adafruit!

BSD license (see license.txt)

Enumeration Type Documentation

◆ emc2101_rate_t

enum emc2101_rate_t

Allowed values for setDataRate.

Enumerator
EMC2101_RATE_1_16_HZ	1_16_HZ
EMC2101_RATE_1_8_HZ	1_8_HZ
EMC2101_RATE_1_4_HZ	1_4_HZ
EMC2101_RATE_1_2_HZ	1_2_HZ
EMC2101_RATE_1_HZ	1_HZ
EMC2101_RATE_2_HZ	2_HZ
EMC2101_RATE_4_HZ	4_HZ
EMC2101_RATE_8_HZ	8_HZ
EMC2101_RATE_16_HZ	16_HZ
EMC2101_RATE_32_HZ	32_HZ

Classes

Macros

Enumerations

Detailed Description

Enumeration Type Documentation

◆ emc2101_rate_t