GND GND MOSI 13MOSI GPIO16 4 14 D SCLK SCLK G 5 GND 1 B B GND +5V AC +3.3V +5V_ext K1 +5V_ext +3.3V HF46F Relay_THT:Relay_HF_46F C5 C6 1 3 100nF 100nF D1 A1 13 1N4001 1 8 7 k 2 A2 14 4 1 R 1 2 J2 GND C C GND C C GPIO10 3 Screw_Terminal_01x03 V V 8 k 9 k +5V MOSI 2 A1 B1 7 1 R 1 R 1 R10 2 2 1k J3 3 GPIO9
