If you look at the datasheet: https://bulkman3d.com/wp-content/upload ... D-v1.1.pdf
Page 4 shows the control signals are basically optoisolators with 330 ohm dropper resistors. You might find that 3.3V is enough to turn on the LEDs in the optoisolators and drive the module.
If not, you could connect the "+" pins to 5V and use buffer transistors driven by the Pi GPIO to turn the optoisolators on and off.
You could also get a schematic of your level converter and see if your wiring actually makes sense, given that you're not actually driving a logic input. It's just an LED. Maybe the level converter could be used as a buffer to drive the optoisolators.
Page 4 shows the control signals are basically optoisolators with 330 ohm dropper resistors. You might find that 3.3V is enough to turn on the LEDs in the optoisolators and drive the module.
If not, you could connect the "+" pins to 5V and use buffer transistors driven by the Pi GPIO to turn the optoisolators on and off.
You could also get a schematic of your level converter and see if your wiring actually makes sense, given that you're not actually driving a logic input. It's just an LED. Maybe the level converter could be used as a buffer to drive the optoisolators.
Statistics: Posted by ame — Tue Aug 27, 2024 9:22 pm
