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roberto_33 09/03/2018
I purchased two of these items and neither of them properly work. They do not automatically startup, you must press the reset button. The GPIO pins do not appear to be properly identified and the USB does not work. All of the other ESP8266/ESP32 devices I purchased from Banggood work properly. I sent two emails to customer service four weeks ago requesting a refund and still have not heard back from them. This transaction might be the last one I make with Banggood.
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  • Banggood Dear customer, Thank you for choosing Banggood and sorry for your any inconvenience came up with the product. We promise we'll offer more good and affordable products for customers and improve our products’ quality. If you have any after-sales problem with the product,welcome to contact us:http://www.banggood.com/Contact-Us_hi111 . We wish you have a nice day.

    29/05/2024
  • gdaelen on the back side , above "D6" , there is two caps and then a 390k resistor.this one is between 3.3v and Vdd of oled !!!!!!!!!!!!replace it with a wire and it will boot at power onthe pin near the side of board of "prg" button need to be connected to ground (the usb ground is very close)schematic is partially wrong , serigraph is ok but sba=sda(i2c)=D4 ,a8=a0 (analog) , SCL=clk(i2c)=D5=GPIO14.reset of oled is D2(GPIO4).

    Reply 17/07/2018
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