VL53L5CX Custom PCB won't work.

[baris1]

I've been trying to design a custom board for a VL53L5CX ToF Sensor similar to a VL53L5CX-SATEL or the ones made by SparkFun and Pololu. I didn't want to use the GPIO Pins or I2C reset to simplify my project.

I tried this design. However, I cannot receive sensor data. When I checked the SCL and SDA Pins using an oscilloscope I observed a constant voltage around 3.6 Volts. What did I do wrong?

[John E KVAM]

Max voltage is 3.6. So you are at the limit. That's a bit worrisome, but technically acceptable.

If our chip is completely dead your MCU should still be able to wiggle the I2C.

Both pins high is the normal quiet state of the I2C.

So if you aren't getting that, then it's a matter of software on your MCU.

Are there any other I2C devices on the Bus? Do they work?

• john