Instructions | Brushed DC Servo Drive

1

Step 1

The device supports two 3.5 mm terminals. The one marked with the MOTOR-A and MOTOR-B labels should be connected to the motor power cables. The other terminal, marked V+ and V- should be connected to a power supply of the correct voltage, ensuring the correct polarity of the connection.
Two JST PH headers are also installed on the board. the 4 way PH header accepts the encoder signal inputs and supplies 5 V to said encoder. The 6 way PH header is used for supplying 5 V to the board’s logic side, accepts the STEP, DIR and RESET signal from the machine controller and has the open drain ERROR output to inform the rest of the system of a fault condition.
The last connector present is a 3x2 0.1 in pitch male header. It is used for reprogramming the MCU present on the board.
Every microcontroller input present in the PH headers has a 330 Ohm resistor connected in series for protection against a mistake when making the connections or a misconfiguration of the pin in the case of a firmware change.

Discussions

David wrote 04/22/2016 at 20:39

wanted to know what you used to program the mcu and upload

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ottoragam wrote 04/22/2016 at 22:09

I used an Stk500, but you can get any AVR programmer that does the ISP protocol, and connect it tho the 2x3 header present on the board. Hope that helps!

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David wrote 04/23/2016 at 06:57

well i tried using a arduino as isp uplodaing hex with avrdudess

what were the fuse and lock bit settings

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David wrote 03/31/2016 at 21:33

the boards just came in. Now to make a reflow oven and then ill test out the drivers

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ottoragam wrote 03/31/2016 at 21:35

That's super awesome! Did you modify the design in the end?

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David wrote 02/17/2016 at 06:05

Thanks

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David wrote 02/17/2016 at 05:51

I would Like to Build one any istructions

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ottoragam wrote 02/17/2016 at 06:02

I replied to your other message, Please check the files at my github repository.

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Brushed DC Servo Drive

Discussions

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