Created
August 3, 2014 15:10
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Micropython DS1624 temperature read in continous mode with maximum (0.0625°C) resolution
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| import pyb | |
| ACCESS_CONFIG = 0xAC | |
| READ_TEMPERATURE = 0xAA | |
| START_CONVERT = 0xEE | |
| STOP_CONVERT = 0x22 | |
| LSB_RESOLUTION = 2 ** (-4) | |
| LSB_BITS = 4 | |
| i2c = pyb.I2C(1, pyb.I2C.MASTER) | |
| ds1624_addr = i2c.scan()[0] | |
| # OOTB DS1624 operates in continous mode (1SHOT==0) | |
| # there is no need to START_CONVERT before every read | |
| i2c.send(START_CONVERT, addr=ds1624_addr) | |
| def read_temperature(): | |
| i2c.send(READ_TEMPERATURE, ds1624_addr) | |
| msb, lsb = i2c.recv(2, ds1624_addr) | |
| return int(msb) + (int(lsb) >> LSB_BITS) * LSB_RESOLUTION | |
| while True: | |
| pyb.delay(1000) | |
| print(read_temperature()) | |
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