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发表于 2019-12-11 20:46:27
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本帖最后由 cne53102 于 2019-12-11 20:55 编辑
There should be more than one, but I can only tell you HR8826 and HR4988, because I don't know the exact names(Also quality) of other substitutes.
But, my speech on the second floor is not directed at this brand. This is just a substitute I can recommend.
我在2楼的发言并不是针对这个牌子。这只是一个我能推荐的代用品。
You can see HR8826 and HR4988 on some Arduino modules. They are a bit cheaper(should be) than DRV8825 and A4988.
Compatible, with a little difference:
DRV8825: 45V 2.5A
HR8826: 38V 3A
Microstepping is no difference.
A4988:35V 2A
HR4988:35V 2A
There is no difference in power.
But Microstepping is different.
A4988: full, 1/2, 1/4, 1/8, and 1/16
HR4988:full, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64, 1/128 (compatible from full-1/16)
Seems better?
If you only need 1A or less, then they will work quite well. Higher currents require heat sinks and four-layer boards.
You can find their datasheet pdf via google. |
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