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29/05/2024gdaelen 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).
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