Stepper Motor Controller - DROK Duel H-Bridge 2 Stepper Motor Controller

Other Hardware 3rd Party Boards
1

My team and I have recently ordered the Stepper Motor Controller: " Stepper Motor Driver, DROK DC-DC Stepping Motor Module 5-30V 9V 12V 24V V3 Dual H-Bridge 4-Channel 2A Step Motor Driver Controller Board Chip with USB Port "..

This board is a duel h-bridge version of the motor controller: L298N

We also have 2 stepping motors (of type: Nema 17) which we want to connect to the controller in order to power and control the motors.

However, there is very limited information online with regards to which pins we connect each of the stepper motors wires (A+/A- & B+/B-) for each motor to this specific motor controller board.

The amazon link [1] shows the amazon link with images that describe and specify the different ports of the board.

The [2] link gives an explanation to how to connect the stepper motor to a singular h-bridge controller (L298N) including all the relevant port connections.

Questions we want to ask:

Have you had any experience with this board?

Have you ever had access to the specific datasheet for this particular board?

Do you have any advice to how we should approach the problem?

If we go ahead and test the stepper motor wires on the board, if we get these wires wrong, is there a chance either the board or the stepper motors themselves will get fried/damaged?

Thank you in advanced!

Useful Links:

[1] link to Motor Controller: https://www.amazon.com/DROK-Stepping-H-Bridge-4-Channel-Controller/dp/B017FZF42G/ref=cm_cr_arp_d_product_top?ie=UTF8

[2] link to L298N connection to Stepper Motor: Stepper Motor with L298N and Arduino Tutorial (4 Examples)

2

Reconsider your driver choice, the one you chose will drop about 2.8 volts. Shown Below are darlington devices, both NPN and PNP. Each transistor will have about 0.7 Volt drop so a darlington configuration has two junctions so that becomes 1.4 volt drop. A H bridge with a darlington in each leg drops about 2.8V. Multiply that voltage times the current and you get the wattage you have to dissipate. You have over 33 watts to dissipate, that is a lot of heat. With a MOSFET H-Bridge with a RDSon 0f 0.001 ohms you will dissipate 0.288 watts. In conjunction your voltage drop goes to 0.024 volts, that is over 2.5 volts more for your load. That is about 20% more power that would have been burnt as heat. Uses a MOSFET H-Bridge your project will be much cooler.