amirabbas1234
- Aug 24, 2017
- 14
- Joined
- Aug 24, 2017
- Messages
- 14
hi all
im trying to get a stepper motor working with an arduino and a a4988 driver, and my circuit is EXACTLY like the image uploaded. well every thing is OK but the resistor at the top of the (brown green brown gold) picture over heats and starts to smell, now i found out that its because my resistors wattage is low (its 0.25 watts)(GOD bless google!!!) now i have ordered 5 and 10 watts resistors and i will use them instead of current one
now i have 2 questins:
1) is there a way so i could prevent this over heating with 1/4 watt resistors that i currently have?(like putting multiple resistors in series or parallel)
2) as u see in the pic there are no resistors connected to any other pins except "VMOT". now should i put some resistors in series with every pin to limit the current and prevent damaging the driver or the arduino?(if YES with what value)
THANKS IN ADVANCE
im trying to get a stepper motor working with an arduino and a a4988 driver, and my circuit is EXACTLY like the image uploaded. well every thing is OK but the resistor at the top of the (brown green brown gold) picture over heats and starts to smell, now i found out that its because my resistors wattage is low (its 0.25 watts)(GOD bless google!!!) now i have ordered 5 and 10 watts resistors and i will use them instead of current one
now i have 2 questins:
1) is there a way so i could prevent this over heating with 1/4 watt resistors that i currently have?(like putting multiple resistors in series or parallel)
2) as u see in the pic there are no resistors connected to any other pins except "VMOT". now should i put some resistors in series with every pin to limit the current and prevent damaging the driver or the arduino?(if YES with what value)
THANKS IN ADVANCE
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