Yes, after playing around a bit with this board, and observing a weird behaviour, a deeper investigation led me to state that one of the small smd 74HC14 ic's was not powered at all, as the positive track was not connected to anywhere due to an error in pcb design. A further look at google confirmed that. A small piece of wirewrapping wire fixed it. Also, an smd resistor under the Estop connector was badly soldered and the contact was not working as expected. Reworked solder on smd.

Yes, after playing around a bit with this board, and observing a weird behaviour, a deeper investigation led me to state that one of the small smd 74HC14 ic's was not powered at all, as the positive track was not connected to anywhere due to an error in pcb design. A further look at google confirmed that. A small piece of wirewrapping wire fixed it. Also, an smd resistor under the Estop connector was badly soldered and the contact was not working as expected. Reworked solder on smd.

Yes, after playing around a bit with this board, and observing a weird behaviour, a deeper investigation led me to state that one of the small smd 74HC14 ic's was not powered at all, as the positive track was not connected to anywhere due to an error in pcb design. A further look at google confirmed that. A small piece of wirewrapping wire fixed it. Also, an smd resistor under the Estop connector was badly soldered and the contact was not working as expected. Reworked solder on smd.

I did not test it yet, I hope that it will work as supposed to !

I did not test it yet, I hope that it will work as supposed to !

I did not test it yet, I hope that it will work as supposed to !

Получил все правильно и хорошо упакованы, извините за беспокойство я буду продолжать покупать.

Received everything correct and well packaged, sorry for the anxiety I will continue buying.

Получил все правильно и хорошо упакованы, извините за беспокойство я буду продолжать покупать.

good quality

good quality

good quality

exactly what I needed. I was hoping for some instructions; I hope that they are on the mini CD (not just drivers)

exactly what I needed. I was hoping for some instructions; I hope that they are on the mini CD (not just drivers)

exactly what I needed. I was hoping for some instructions; I hope that they are on the mini CD (not just drivers)

A very good product for this Money.

A very good product for this Money.

A very good product for this Money.

Good packing good product good seller. thank you banggood. ...

Good packing good product good seller. thank you banggood. ...

Good packing good product good seller. thank you banggood. ...

Pronto la voy a calar para ver si sirve. LLego en el tiempo exacto

Pronto la voy a calar para ver si sirve. LLego en el tiempo exacto

Pronto la voy a calar para ver si sirve. LLego en el tiempo exacto

Received in well condition, even mini CD supplied. But you better Google on hy-jkm5 to find good documentation, you can find a lot about it. Thanks Banggood.

Received in well condition, even mini CD supplied. But you better Google on hy-jkm5 to find good documentation, you can find a lot about it. Thanks Banggood.

Received in well condition, even mini CD supplied. But you better Google on hy-jkm5 to find good documentation, you can find a lot about it. Thanks Banggood.

it is perfect for mach 3 and is working on usb to serial cable, nice product

it is perfect for mach 3 and is working on usb to serial cable, nice product

it is perfect for mach 3 and is working on usb to serial cable, nice product