2 sensors about vl53l0x-linux HOT 7 CLOSED

The i2cdetect output seems very weird indeed, it should display -- at all or almost all addresses.

After quick search I've found this very related SE post: https://raspberrypi.stackexchange.com/questions/32719/i2cdetect-shows-every-possible-address - make sure that i2c1 is properly enabled (e.g. via raspi-config) and wired.

I can try verifying this behaviour on my RPi4, but AFAIR the last time I've checked I had -- on all addresses but the used ones.

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thank you for the reply
for some reason some gpio pins works (no weird behaviour on i2cdetect) and other do not
I tried both on 4gb and 8gb version of raspi4/b and I could not make it work properly
again one sensor works just fine, but with more than one the set of the address fails

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Can you share your wiring diagram?
Also, what type of a carrier board for the sensors are you using? Pololu, DFRobot, Adafruit, some custom one?

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I tried different gpio pins so they might be different from previous posted code
the sensor used is this one

also with another python library I am able to stream both sensors at 30hz no problem

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On all the pictures of the board I've found the SDA and the SCL pins are the other way around compared to your sketch - could you check it?
Also, verify the resistance between I2C lines and ground, it should be very high or even open line - maybe something is shorting where it shouldn't and it pulls one of the lines down (in particular, the SDA data line).

Edit: are the GPIO files used by this library (https://github.com/mjbogusz/vl53l0x-linux/blob/master/VL53L0X.cpp#L496) valid on RPi4? AFAIR this was developed for BeagleBone, so the paths can be different.

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Oh this is really helpful thank you!
I will check asap and come back to you

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@mjbogusz
thank you so much for your help
I just needed to change the file reference to access the gpio
I tried both on Raspberry pi4 and Khadas VIM3L, I confirm everything works perfectly
thank you again!

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