@Lucas_Vieira Yes, just change the last line of the method values() to: return t, p, h I never had sent values directly to cayenne, only through TTN. Which cayenne LPP module are you using? Edit: In my tests, the value for humidity was the one with the largest error, but still not 0. Are you sure that you have a BME280 device and not an BMP280? If you look at the package, there are two lines of letters BME280: xxx Ux BMP280: xxx Kx The difference is U vs. K

@chumelnicu Still on my to-do list I'm afraid, but maybe try iotmaker's code? https://forum.pycom.io/topic/1453/i2c-sensor-with-wipy2/11

Ok.. Solved: from machine import I2C import time ADDR = 0x70 CMD = 0x51 configure the I2C bus i2c = I2C(0, I2C.MASTER, baudrate=250000) i2c.writeto(ADDR, bytes([CMD])) time.sleep(0.5) dist = i2c.readfrom(ADDR, 2) total = (dist[0]*255)+dist[1] print(total)

@dchappel bit left shift << same for bit right shift >>

Thanks to Livius. That worked!

@iannucci I'm curious if you ever got this working. The TI documentation is a hot mess. If you did, can you post up some example code, please? =)

@crankshaft said in SI7021 I2C sensor: Try This; WOW! You're great, works like a charm... Thank you very very much!

@jnc said in Connecting a sensor to WiPy 1 via I2C: I assume you have to specify the scl and ads pin in the constructor, like: i2c = I2C(0, scl=lux_scl, sda=lux_sda) And you may have to switch GP12 and GP13, as far as I understand the PinOut https://raw.githubusercontent.com/wipy/wipy/master/docs/PinOUT.png lux_scl = Pin('GP12', mode=Pin.ALT, alt=5) lux_sda = Pin('GP13', mode=Pin.ALT, alt=5)