anthony bradley

Hi, I have built an FP2 using a 28BYJ-48 (which is marked as 5v) and its ULN2003 driver board (marked 9-12v input), and the FP2 circuit diagram shows the ULN2003 driver board powered by 9v, however, on long focusing runs the motor gets too hot to touch and melted the PLA adapter on the output shaft. Should this be running at 9v, or should I reduce the power supply voltage to the driver board? Thanks

Solved, I updated the Timerone library with the one attached in this post https://sourceforge.net/p/arduinoascomfocuserpro2diy/discussion/general/thread/500d33ea9d/

Hi, The FP2 test app can connect to my ULN2003M-MT-F-BT via Ascom, but when I try and move it (e.g. just +1) via the test app: * the motor does not move * LEDs on the driver board do not flicker * app reports "Moving: Current Position 5000" and never changes. * an in/out LED illuminates and stays on (until Nano is reset) * No signal is observed on stepper signal lines In1-In4 on a scope at any time. * Tx Rx leds flicker on the Nano when the test app is running. It is as though it is trying to move...

Hi, The FP2 test app can connect to my ULN2003M-MT-F-BT via Ascom, but when I try and move it (e.g. just +1) via the test app: * the motor does not move * LEDs on the driver board do not flicker * app reports "Moving: Current Position 5000" and never changes. * an in/out LED illuminates and stays on * No signal is observed on stepper signal lines In1-In4 on a scope at any time. * Tx Rx leds flicker on the Nano when the test app is running. It is as though it is trying to move but never does so carries...

Hi, The FP2 test app can connect to my ULN2003M-MT-F-BT via Ascom, but when I try and move it (e.g. just +1) via the test app: * the motor does not move * LEDs on the driver board do not flicker * app reports "Moving: Current Position 5000" and never changes. * an in/out LED illuminates and stays on * No signal is observed on stepper signal lines In1-In4 on a scope at any time. * Tx Rx leds flicker on the Nano when the test app is running. It is as though it is trying to move but never does so carries...

Hi, The FP2 test app can connect to my ULN2003M-MT-F-BT via Ascom, but when I try and move it the motor does not move, LEDs on the driver board do not flicker, app reports "Moving: Current Position 5000" and never changes. If I try and move it again the app reports "focuser moving - please wait until it has stopped" as though it is still trying to move from the previous instruction but never does (even if I just try and move it to 5001). No signal is observed on stepper signal lines In1-In4 on a...

Hi, The FP2 test app can connect to my ULN2003M-MT-F-BT via Ascom, but when I try and move it the motor does not move, LEDs on the driver board do not flicker, app reports "Moving: Current Position 5000" and never changes. If I try and move it again the app reports "focuser moving - please wait until it has stopped" as though it is still trying to move from the previous instruction but never does (even if I just try and move it to 5001). No signal is observed on stepper signal lines In1-In4 on a...