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Domótica sencilla, fácil y económica

 Introduction to home automation network free microHomeLan
 Economic issues in home automation installations

2.2.1. SCH motherboard diagram

Motherboard diagram 4DI4DO4ALed Uhlan MB V1.1 plant automation
Motherboard diagram 4DI4DO4ALed Uhlan MB V1.1 Power supply of the plant automation

Bill of Materials

Value Device Parts Description
4 LED3MM LED1, LED2, LED3, LED4 3mm red LED
1 LED5MM LED5 5mm green LED
9 1K R-EU_0207/10 R5, R8, R9, R10, R12, R13, R14, R16, R18 Standard Resistance ¼ watt 5%
1 1K2 R-EU_0207/10 R20 ¼ watt resistor 1% * Depends on IC2, see documentation
1 1N4004 1N4004 D1 1A standard diode
4 1uF EUE2.5-5 CPOL- C1, C4, C7, C9 1uF/25V electrolytic capacitor
1 3K6 R-EU_0207/10 R19 ¼ watt resistor 1% * Depends on IC2, see documentation
4 4N25M 4N25M OK1, OK2, OK3, OK4 4N25M Optocoupler or equivalent
2 5A FUSE2P F1, F2 PCB Fuse 5A fuse 5x20mm
4 5V1 ZENER-DIODEDO35Z10 D2, D3, D4, D5 0.4 W Zener diode 5.1V BZX79-B5V1 or similar
8 10K R-EU_0207/10 R1, R2, R3, R4, R6, R7, R11, R15 Standard Resistance ¼ watt 5% * R1, R2, R3 and R6 depend on the supply voltage of the relay, see diagram
1 100nF C-EU050-025X075 C8 Miniature Condenser 100nF/100V MKT
1 100uF/63V CPOL-EUE3.5-8 C10 100uF/63V electrolytic capacitor
1 100uH L-USTJ2-U2 L1 Coil Inductor 100uH, 1A
1 1000uF/16V EUE5-10.5 CPOL- C11 1000uF/16V electrolytic capacitor, preferably 105 ° C low esr
1 CPU CPU-2 MO1 2 female 9-way PCB connector x 1 rows step 2.54 mm for poles

Qty Value Device Parts Description
1 D04PA-PAD D04PA-PAD $ 1 Encapsulated PCB Heatsink TO220 * Only required if 5V relays are
8 DI, Lan +24 V, Led_A, Led_B, Led_C, Led_D, 24V_In, 24V_Out W237-102 X6, X3, X10, X8, X9, X12, X13, X14 Strip connection for 2-way PCB (PCB terminal blocks)
6 DO1, DO2, DO3, DO4, Rs-485, DI W237-103 X2, X4, X5, X7, X1, X11 Terminal strip 3-way PCB (PCB terminal blocks)
1 F0, 22 R-EU_0207/10 R21 Fuse resistance Ω ¼ watt 0.22 * View Documentation
4 G5LE G5LE K1, K2, K3, K4

PCB power relay 10A SPDT G5LE Omron type 5/12/24 / .. Vdc coil, or similar * For any supply voltage (relay = 5V), for the rest, the voltage of the relay must be equal to the power of home automation network

1 Or LM2575T-5.0 LM2575TV-ADJ
LM2575TV IC2 LM IC switching regulator 5V 1A or equivalent * Preferably LM2575TV-5.0 (R19 and R20 are canceled), see documentation
4 POWER_LED POWER_LED_2 MO2, MO3, MO4, MO5 Drivers Current Regulator for LEDs, PowerLed
1 UF4003 UF4003 D6 Power diode ultrafast UF4003 or similar 1A
1 ULN2803 ULN2803A IC1 500mA transistor array ULN2803A or equivalent 50V

Terminal Blocks

This version of the motherboard has been optimized to use various PCB terminal strips or terminal blocks 2.54 passing of various types. You can choose standard terminal blocks or pluggable terminal blocks as shown in the following figures. Blocks have to choose the type stackable connectors to join Rs-485/Lan DI and +24 to form a single body of contacts.

Standard terminal block
Angled terminal block plug
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