DC/Stepper Driver Not Powering On

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sssynk
 
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DC/Stepper Driver Not Powering On

Post by sssynk »

Hi all, I recently received a Adafruit DC & Stepper Motor HAT for the Raspberry Pi (https://www.adafruit.com/product/2348). There is a power LED which is supposed to light up when an appropriate power source is connected, however this LED never lights and power is never delivered. I tested with a 12v 750ma plug-in power supply, a 12v SLA battery, and a 9v battery. Neither make the HAT show any sign of life. The polarity is correct, and I used a multimeter to confirm that the power supply was 12v. Does anyone have any ideas, or just a faulty unit?

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Franklin97355
 
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Re: DC/Stepper Driver Not Powering On

Post by Franklin97355 »

Can you post a picture of your hat?

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sssynk
 
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Re: DC/Stepper Driver Not Powering On

Post by sssynk »

Here are pictures of the top and bottom. My soldering is upright terrible, but I also tested it without solder (touching wires to the board) and still no sign of life.
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ECD1521F-CE4B-4E5D-9A44-30BB6E76F024.jpeg
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sssynk
 
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Re: DC/Stepper Driver Not Powering On

Post by sssynk »

Received a replacement board today and it works perfectly. Seems to just have been a defective board!

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Franklin97355
 
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Re: DC/Stepper Driver Not Powering On

Post by Franklin97355 »

You might be better off to increase the temperature of your iron as the joints look like they were cold solder. What type of iron do you use and what type of solder?

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