Hi it seem you are powering the 12v wrongly.
Based on sticker of the HUB, red is 12v and black is gnd.
Hope this helps
Jason
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RE: ATOM HUB AC/DC, RS-485 VOLTAGE CONVERTER, VOLTAGE PROBLEMposted in Atom
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ATOM RS485 GPIOposted in PRODUCTS
Hi, will it possible to use GPIO26 and 32 on the ATOM RS485 as ADC input?
Jason