Vivo has officially launched its new S30 series in China, featuring the standard S30 and a more compact but decked-out model called the S30 Pro Mini. Listen to Story The Vivo S30 price in China starts ...

note that 7.5" e-paper displays don't work reliable if fed from 3.3V Arduino pin note that Waveshare boards with "clever" reset circuit may need shortened ... AVR Arduino (Pro Mini 3.3V) 1.54" 3-color ...