calculate resistor value for the L7808 does the L7808 need a cap? Europi uses one (1uf) check footprint for sm4001 x power protection (polyfuse) x gate input X2 (buffered) x gate output X2 (buffered) x RTC Module Interfaced with Pi x 1 Set selectable LED X8 x 1 Set selectable LED X7 - 1 RGB LED Indicator LEDS in output path circuit?