Description of ๐จ๏ธ Printer with Optical Endstop and Photoelectric Control
VCC: 2.7V to 5V ;SIG logic: output low level when there is no trigger and high level when there is trigger. Using optically transmissive principles of design, no loss, no noise with a longer life. The trigger is sensitive and quiet, with high repeatability and no mechanical collision. This is a kind of new reliable optical switch for 3D printer, CNC, 3D tool.Repeat positioning is in high accuracy. If the product have any question,please contact the seller anytime.
I used this and SKR 1.3, you need to swap 5v with your signal pin on the motherboard side. The sensor has a great green LED that lets you know when it's triggered. terrific!
Replaced the Z end stop with this one so I have a reliable Z reference system Works better than any mechanical switch in my own printer. One note: the SIG/V wires appeared to be going back to the SKR motherboard, it was easy enough to swap pins, and the switch MAY work the other way, but I didn't risk it. Although this is a cable issue and does not affect the functionality of the device, it still gets 5 stars. You should always check the wiring of whatever you are connecting it to. Greatโฆ
The sensor output is high (about 5 volts) when activated, but low (about 0 volts) when not activated. In my application, the input to the computer has a pull-up resistor that prevents the low idle from being low enough and causing a continuous high as if the sensor were activated. To solve this I used a 74ls02 gateless IC and used two of the four (2 inputs) gateless to get it working. I connected them in series with a wire that drew 5V power and ground for power, then soldered the outputs ofโฆ