Hello,
I have an Arduino mega board with a reprap 1.4. The reprap is powered by a Lascar Electronics PSU 130, 12V. The Arduino is connected with USB. When I upload some software to the Arduino, disconnect USB and power on the PSU, all works as expected (the steppers move, and the PSU reports 12V). When I leave the USB connected, the steppers just make some noise, and the PSU reports 6V. Our setup requires that the USB stays connected for data transmission.
Currently computer and PSU are connected to the same power socket. Is there anything I do wrong here, or something I can test or check?
Edit: I also got the advice to cut the 5V cable of a USB cable. Can that work?
Thanks in advance
I have an Arduino mega board with a reprap 1.4. The reprap is powered by a Lascar Electronics PSU 130, 12V. The Arduino is connected with USB. When I upload some software to the Arduino, disconnect USB and power on the PSU, all works as expected (the steppers move, and the PSU reports 12V). When I leave the USB connected, the steppers just make some noise, and the PSU reports 6V. Our setup requires that the USB stays connected for data transmission.
Currently computer and PSU are connected to the same power socket. Is there anything I do wrong here, or something I can test or check?
Edit: I also got the advice to cut the 5V cable of a USB cable. Can that work?
Thanks in advance