MicroPython Forum (Archive)

point one

I've been a week, specifications in hand... and I can't see the error... let's see if someone can see it... I wanted to experiment but I got lost... a little help???? from machine import SoftI2C import time # Get I2C bus i2c = i2c = machine.I2C(0, scl=machine.Pin(17), sda=machine.Pin(16),freq=400000...

thanks for your help... in principle it is in the address 0x76 which is by default where the class is... thinking about it I found the error... it is silly... it turns out that the bmp280 manufactured after 2021 (by the serial id ) only work at frequencies of 100000 bus, if you lower it after a few ...

Hello, a few days ago I received some bmp280 modules and the truth is, I don't know why they don't work. for now it is connected, it has push resistors and it is a 3.3v device Scan i2c bus... i2c devices found: 1 Decimal address: 118 | Hexa address: 0x76 but when trying to capture the data I2C scan ...

Does anyone know where I can find the firmware for this board?

hello

The library expects a value of 0x20 exactly but sensor returns 0x22 which would indicate “better” featureset than what’s required.



it works now....

hello
If everything is correct, it is well connected, it detects the device... but nothing continues to give an error in that part... I downloaded the documentation of the sensor to see if I can see where to go...

hello again ... trying to put an sgp30 into operation for measurement... Traceback (most recent call last): File "<stdin>", line 22, in <module> File "/lib/spg301.py", line 70, in __init__ RuntimeError: SGP30 Not detected I think it's on this line featureset = self._i2c_read_words_from_cmd([0x20, 0x...

both tested, they work with the sht3x class when i2c hard is read at 12-13 cyclic measurements (1 second intervals) it shows that there is no sensor, but with soft there is no such problem

thanks, I'm working on it... (learning or at least I'm trying to), thanks for your advice and I'm sorry if I've offended you... nothing could be further from the truth