bom selettore ingressi + diplay

R1,R2,R3,R4,R10,R11,R12,R13,R14,R15,R16,R17=10K
R6,R7,R8,R9=1K
R5=2k7
CON1= CONNETTORE MASCHIO IDC 2X5P
T1,T2,T3,T4 =BC337 NPN TRANSISTOR
PULSANTE CON LED MODELLO :
https://it.aliexpress.com/item/1005003189729837.html?spm=a2g0o.order_list.0.0.326736962qlKK8&gatewayAdapt=glo2ita

ARDUINO MODELLO NANO V3 
DISPLAY MODELLO : LCD 16x2 1602 VERDE HD44780

scheda rele :
 5pz.....rele omron g5v-2-12
5pz......diodi 1n4001
 CONNETTORE MASCHIO IDC 2X5P