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Published 20 hours ago • verified publisher icon bigtreetech

Where is the i2c bus on the GIPIO ports?

Open alexMamaevs opened this issue 2 years ago • 4 comments

Hi, Trying to connect ds1307 rtc module to CB1+PI4B The overlays dtb file says that they are on the pins i2c0 "PI6", "PI7", i2c3 "PH4", "PH5". i2c1 pins are missing. Where are these pins on the board?

alexMamaevs avatar Dec 15 '22 09:12 alexMamaevs

Also very interesting. Failed to connect screen SSD1306 by i2c

kostake2011 avatar Jan 02 '23 15:01 kostake2011

Same here - i am using a CB1 for a non 3D printer related project and fail to find/use the i2c bus. Biqu please advise/help. :)

pringsen avatar Mar 01 '23 09:03 pringsen

According to the circuit diagram for the CB1 the I2C pins are not connected. See sheet 9 and 10 of the schematic to see what's actually connected to the board interconnect. I discovered this trying to make an MPU6050 work for the resonance tester in Klipper.

ifreislich avatar Mar 26 '23 23:03 ifreislich

does not support I2C, DSI or CSI ....they are beautiful E-Waste, nothing more....

DrumClock avatar Nov 06 '23 17:11 DrumClock

I agree with @DrumClock. They even have formal and incompetent support, which approves that their boards can only be used in 3D printers. Facepalm...

max-davletchin avatar Sep 24 '24 09:09 max-davletchin