Raspberry PI GPIO interface board

Circuit diagram

Part list

K1 Relais
U2,U3,U4,U5 L78M05
D1 double shotky diode
C1,C3,C4,C5,C6,C11 u1
CONN1, CONN2, CONN3, CONN4 input terminal
D2,D3 diode
D4,D5,D6,D7,D8,D9 zener diode
F1 fuse
GS1, GS2, GS3 pin array 3x1
J1, J9 strip 10 pins
J2 pin array 13x2
J3, J4, J6, J7 array 2 pin
J5 pin array 4x1
J14 pin array 5x1
J15, J16, J17, J18 pin array 5x2
R1 resistor 4k8
R2 resistor 3k9
R3,R4,R5,R6 trimmer 10k
U1 A/D PCF8591
J10, J11, J12, J13 pin array 3x2
DC1, DC2, DC3, DC4, DC5, DC6 DC/DC convertor
C7,C8,C9,C10 capacity u33
C2 capacity 2G2/6.3V
J8 RJ9

Planting plan


✔ All components

❏ Solder J2 GPIO connector on bottom of pcb - with the exception of pin 17

❏ Next R1 R2, D2 D3 D4 D5 D6 D7 D8 D9 and C1 C3 C4 C5 C6 C11 C7 C8 C9 C10

❏ All pin strip and connector J16-19

❏ The remaining components - K1, U2 U3 U4 U5, CONN1 CONN2 CONN3 CONN4, F1, R3 R4 R5 R6 - before by soldering turn fully CCW, and put on control screw towards to diodes = center of the potentiometer must be routed to ground, J8

❏ Last IOs U1 ULN1 ULN2 and two mandatory DC/DC converters for Raspberry PI and rotator modules - before mounting must both be set to the output voltage of 5V, otherwise you risk damaging RPI and arduino