Understood.
So, can I understand that the contents written in the specifications are incorrect, and that it is standard to directly apply 3.3V to pin 1?
Exclusively from info learned in this thread (edit: I’ve not handled this device), my take is that Pin 1 is device power, steady 5 volts nominal, 4.75-5.25 tol. The remaining pins are 3.3 volt signals pins but we expect them to swing with data and device state. The blue bar NOTICE uses the term signal level.
In other words, I think the part in the green circle is an error.
The conversation is going in circles.
Please consider the entire conversation and context, not just my latest comment.
So, I’ll just ask for the conclusion.
The product’s power supply is 5V, and the I2C communication is 3.3V.
Does the lidar include a level shifter resistor internally? (I’m using the version without Qwiic.)
Or does the user need to configure it separately to distribute 3.3V?
TS-russell, instead of just showing empathy, please give a direct answer.
TS-Russel, I couldn’t find the information you previously provided about “The I2C bus operates internally at 3.3 Vdc. Internal 13 kiloohm pull-up resistors ensure this functionality and allow for a simple connection to the I2C host” in the link you gave me.
I would like a screenshot of the relevant information and a precise answer from the product manufacturer.
So, in conclusion, as the manufacturer of the Garmin LIDARV-litev4, I would like to request a precise answer as to whether the product has an internal level shifter or whether the user needs to configure a level shifter externally.
Indeed it does seem to be going in circles.
…it’s on page 2 https://static.garmin.com/pumac/LIDAR-Lite%20LED%20v4%20Instructions_EN-US.pdf
I truly do not understand the issue as presented…if it works at 3v, use that. Their docs have conflicting info
We do NOT manufacture the non-qwiic version; I’m going to direct you to ask Garmin Garmin Official Site for any further inquiries