Control of Air Assist with Atomstack X20

[DzzD]

@mj666

The pins at the I2C connector are in reverse order to the MKS DLC32 board. From bottom to top at the I2C connector 3,3V, GND, SDA, SCL. This is if you look at the board and can read the all labeling in regular orientation. The optocoupler Mosfet switches i use are connected to GND (black) and SCL (yellow). Red and white are not connected. The 12 or 24V (red) are connected together. The GND (black) ist output in the middle and input at the opposite of the red wires at the output side of the module. You can see the detail of wiring in my pictures posted above.

So you directly connected the serial SCL to the mofset switch ? isn’t is supposed to transmit serial datas ?

From this picture, could you please re-explain the pinout of the I2C ?