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BG104844016 26/01/2018
Luckily I bought 5 of these, and didn't grab the bad one for my initial test. Worked fine with both 3.3V and 5V signals. Then I started testing all 5 boards. I got to number 3, and it wouldn't do anything. A quick look with a 4X eye loupe showed the Vin pin on the regulator wasn't soldered because the LDO had skewed off-center during soldering. If the unsoldered pin isn't clear, you can tell from the outline silkscreen - it's WAY off the pad. A quick touch-up and 5 of 5 modules worked. It gets 2 stars for quality 'cos if I'd only bought one (and it was the bad one) I'd have been severely frustrated.
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  • Banggood Dear customer, Thank you for your order and before even attempting to explain the reasons leading to this unintended mistake, we would like to sincerely apologize to you. In our attempt to serve you better and retain you as one of our valuable customers, please contact our customer service representatives by this link: http://www.banggood.com/Contact-Us_hi111 We would highly appreciate if you could send us all the information listed here below: 1.Some photos of the shipping label, which can be found on the external side of the package; 2.The SKU number of the products you received. You can find this information on the label placed on the item itself; 3.Some photos or video to show the entity of the problem; 4.The order number and the product ID. Looking for your kindly reply. Have a nice day. Best regards, Banggood team  

    18/05/2024
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