SM9541 140C-S-C-3-S Arduino Code

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1

Hi everyone,

I can find Arduino Code in the community repository for AMS 5812 but nothing for the SM9541
Can anyone tell me how to convert the Pressure Data for this sensor.

Thanks

2

Here is some Python code that has been tested, should be easy enough to rewrite it for Arduino:

class SM9541():
    def __init__(self):
            self.pressure = 0
    def read(self):
            status = bus.read_i2c_block_data(0x28, 0x00, 2)
            if(status[0] & 192 == 0):
                    value = (((status[0]&63) << 8) + status[1])
                    converted = self.convert(value, 1638, 14745, 0, 20)
                    self.pressure = converted - 10

            return self.pressure

    def convert(self, value, leftMin, leftMax, rightMin, rightMax):
            leftSpan = leftMax - leftMin
            rightSpan = rightMax - rightMin

            valueScaled = float(value - leftMin) / float(leftSpan)

            return rightMin + (valueScaled * rightSpan)