Termostato Wi-Fi con NodeMCU

flux

1:20

Checking if I can make the changes for you.

Considering net designators.

Net Connections to be added

Table

NetConnections
R4:P1, R3:P2, U1:25, U3:EN, C2:P1, D2:K, D1:K, U1:VIN, U3:VIN, K1:A1, C1:P1, R5:P1, C4:P1, U1:EN, U4:4, C5:P1, U2:VDD, U3:VOUT, C6:P1, C3:P1, U1:11, Q1:B, U1:16
PSU_5V_RAWPS1:+VO, D2:A
U1:D5 GPIO14, R2:P1, R2:P2, U4:1, GND:GND, R4:P2, R5:P2, PS1:-VO, C3:P2, U1:24, C6:P2, U2:GND, C4:P2, C2:P2, U1:10, Q1:E, U4:2, C5:P2, U3:GND, U1:14, R1:P2, C1:P2
ONEWIRE_TEMPU1:D2 GPIO4 SDA, R1:P1, U2:DQ
K1:A2, D1:A, Q1:C
Net 5C7:P2, R6:P2
RELAY_COMC7:P1, K1:COM
U4:3, R3:P1
RELAY_NOK1:NO, R6:P1
39 days

Updated 9 connections

0:48

Connected R4:P1, R3:P2, U1:25, U3:EN, C2:P1, D2:K, D1:K, U1:VIN, U3:VIN, K1:A1, C1:P1, R5:P1, C4:P1, U1:EN, U4:~, C5:P1, U2:VDD, U3:VOUT, C6:P1, C3:P1, U1:11, Q1:B, U1:16 to ^Net 1

Connected PS1:+VO, D2:A to ^PSU_5V_RAW

Connected U1:D5 GPIO14, R2:P1, R2:P2, U4:~, R4:P2, R5:P2, PS1:-VO, C3:P2, U1:24, C6:P2, U2:GND, C4:P2, C2:P2, U1:10, Q1:E, U4:~, C5:P2, U3:GND, U1:14, R1:P2, C1:P2 to ^GND

Connected U1:D2 GPIO4 SDA, R1:P1, U2:DQ to ^ONEWIRE_TEMP

Connected K1:A2, D1:A, Q1:C to ^Net 2

Connected C7:P2, R6:P2 to ^Net 5

Connected C7:P1, K1:COM to ^RELAY_COM

Connected U4:~, R3:P1 to ^Net 3

Connected K1:NO, R6:P1 to ^RELAY_NO

39 days
pierpa86

pierpa86

r2 e shorted
39 days

flux

1:10

Analyzing the schematic.

Considering a potential fix.

Checking if I can make the changes for you.

Net Connections to be added

NetConnections
U1:D5 GPIO14, R2:P1
R2:P2, U4:1

Net Connections to be removed

NetConnections
R2:P1, R2:P2
39 days

No changes applied.

0:46

39 days
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    Termostato WiFi da Incasso 230Vac NodeMCU

    Termostato WiFi da Incasso 230Vac NodeMCU thumbnail
    Termostato da incasso con NodeMCU ESP8266, sensore DS18B20, alimentazione isolata 230 Vac, uscita relè SPDT a contatto pulito per caldaia e controllo via pagina web Wi-Fi.

    Properties

    230 Vac 50 Hz input, mains section separated from LV logic and clearly labeled L and N

    Wi-Fi

    flowchart TD subgraph HV [HV Zone 230Vac] J_AC[AC input terminals] PS1[HLK 5V AC DC] K1[Relay SPDT contacts] end subgraph BARRIER [Safety Barrier] U4[PC817 optocoupler] ISO[6mm isolation boundary] end subgraph LV [LV Zone 5V 3V3] U3[AP2112K 3V3] U1[NodeMCU ESP8266] U2[DS18B20] Q1[2N2222A driver] end J_AC --> PS1 PS1 --> U3 U3 --> U1 U1 --> U2 U1 --> U4 U4 --> Q1 Q1 --> K1

    NodeMCU web server with hysteresis control 0.5 K

    Dry contact SPDT relay interface, isolated from LV control, target compatibility 5(3) A at 250 Vac

    230 Vac, 50 Hz

    HVAC thermostat

    Prototype

    HV/LV split for 230 Vac thermostat; maintain 6 mm minimum creepage and clearance between mains and low voltage; prefer PCB slot barrier between zones

    Continuous thermostat duty for residential boiler control

    Proto

    230 Vac input, isolated 5 V and regulated 3.3 V rails

    Web page thermostat UI

    IEC 62368-1 oriented zoning, HV/LV separation 6mm minimum

    Pricing & Availability

    Distributor

    Qty 1

    Arrow

    $0.47–$3.46

    Digi-Key

    $3.87–$8.64

    LCSC

    $3.83–$4.91

    Mouser

    $0.79–$3.50

    TME

    $0.84–$1.54

    Verical

    $0.10–$6.30

    Controls