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VL53L3CX i2c error (can't scan address)

jhson0531
Visitor

I'm using VL53L3CX. The development board is nucleo f103rb. Power was supplied from the laptop, and pin connections were the same as shown in the notes in the example code.(sensor - pololu / code - stm32arduino helloworld)
The sensor was powered to 3.3 V in the vin

At first, the data came out well. However, after several repeated measurements, suddenly there was a problem with "initsensor." The code has not progressed since "initsensor."

I2C was the problem. I tried to search the address with scanner code but it failed.

After removing the sensor and board from all power connections, I tried again after a lot of time, and it went intermittently and then it didn't. When I took SDA and SCL with my oscilloscope, the signal was caught only when it was intermittent and I stayed in HIGH state when it was not

I've been suffering from this issue for weeks. I wonder if the sensor is broken or if there's something wrong.

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