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Re: connection issues


 

Mclr is for programming?


On Thu, 5 Jan 2023, 13:40 paul larner, <quadzillatech@...> wrote:
Hi all,i just had this delivered from ebay?
it came with just a bom and no paperwork to talk of,missing buttons+ power headers missing too,well i have built it,it has a small 0.95" oled display,on the display the pins are marked looking from the front left to right:1=gnd 2=vcc 3=scl 4=sda,on the main atu pcb left to right the pins are marked 1=clk 2=dat 3=gnd 4=vcc 5=mclr,i understand the gnd and vcc? also maybe clk is the clock on both?,,what does the scl and sda correspont to on the mainboard pinouts?,as is when powered up i get a single relay click and a blank display,can anyone help?,i feel the info supplied with these kits are total garbage!,thanks 73 de m3vuv.

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