Anyone used 28BYJ28-5v Stepper with ULN2003 Driver ?
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Hi, Anyone has experience with 28BYJ28-5v with ULN2003 Driver. can't find any documentation.
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@salmanfaris click this pdf
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Hi @Geethesh,
Thanks for the quick replay, the pdf is about 28BYJ-48 model it's comes with 5 pins, but I need 28BYJ-28 it comes with 4 pins.
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@salmanfaris ok
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@salmanfaris I've not used the same version of the stepper motor that you've mentioned but I've used 12V stepper motor with ULN2003 motor driver. So probably I can help you with the queries.
Firstly all the tutorials on the internet show how to connect your motor's wires to ULN2003. But, in reality when you buy those motors the wires color codes may be changed, so in that case, we need to use a multimeter and check the resistance of the wires. 2 wires will have the same resistance and other 2 wires have the same resistance and the leftover one is a ground wire. This way we can get to know which wire must be connected to which port of ULN2003 driver. This is the common doubt all get while using ULN2003.
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@codelery said in Help needed: Arduino Wireless Notice Board project:
I am using the hardware serial (pin 0 and 1 on Arduino Uno)
As @rafitc99 mentioned, you need to expand the Serila buffer, in the hardware serial also the Arduino board package implements a 64-byte ring buffer for send and receive on the hardware serial messages. So you need to change that to 256 as per your message length.
