mirror of
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gmsec
54 lines
1.7 KiB
Go
54 lines
1.7 KiB
Go
// Package mcp9808 implements a driver for the MCP9808 High Accuracy I2C Temperature Sensor
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//
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// Datasheet: https://cdn-shop.adafruit.com/datasheets/MCP9808.pdf
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// Module: https://www.adafruit.com/product/1782
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package mcp9808
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// Constants/addresses used for I2C.
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const (
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MCP9808_DEVICE_ID = 0x0400
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MCP9808_MANUF_ID = 0x0054
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MCP9808_I2CADDR_DEFAULT = 0x18 //default I2C address
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MCP9808_REG_CONFIG = 0x01 //MCP9808 config register
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MCP9808_REG_CONFIG_SHUTDOWN = 0x0100 //shutdown config
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MCP9808_REG_CONFIG_CRITLOCKED = 0x0080 //critical trip lock
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MCP9808_REG_CONFIG_WINLOCKED = 0x0040 //alarm window lock
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MCP9808_REG_CONFIG_INTCLR = 0x0020 //interrupt clear
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MCP9808_REG_CONFIG_ALERTSTAT = 0x0010 //alert output status
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MCP9808_REG_CONFIG_ALERTCTRL = 0x0008 //alert output control
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MCP9808_REG_CONFIG_ALERTSEL = 0x0004 //alert output select
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MCP9808_REG_CONFIG_ALERTPOL = 0x0002 //alert output polarity
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MCP9808_REG_CONFIG_ALERTMODE = 0x0001 //alert output mode
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MCP9808_REG_UPPER_TEMP = 0x02 //upper alert boundary
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MCP9808_REG_LOWER_TEMP = 0x03 //lower alert boundery
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MCP9808_REG_CRIT_TEMP = 0x04 //critical temperature
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MCP9808_REG_AMBIENT_TEMP = 0x05 //ambient temperature
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MCP9808_REG_MANUF_ID = 0x06 //manufacturer ID
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MCP9808_REG_DEVICE_ID = 0x07 //device ID
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MCP9808_REG_RESOLUTION = 0x08 //resolution
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)
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/*
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======= ============ ==============
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value resolution reading Time
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======= ============ ==============
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0 0.5°C 30 ms
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1 0.25°C 65 ms
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2 0.125°C 130 ms
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3 0.0625°C 250 ms
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======= ============ ==============
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*/
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type resolution uint8
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const (
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Low resolution = iota
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Medium
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High
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Maximum
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)
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