Termostato Wi-Fi con NodeMCU

1:20

Checking if I can make the changes for you.

Considering net designators.

Net Connections to be added

Table

Net	Connections
	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_RAW	PS1:+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_TEMP	U1:D2 GPIO4 SDA, R1:P1, U2:DQ
	K1:A2, D1:A, Q1:C
Net 5	C7:P2, R6:P2
RELAY_COM	C7:P1, K1:COM
	U4:3, R3:P1
RELAY_NO	K1:NO, R6:P1

37 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

37 days

pierpa86

r2 e shorted

37 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

Net	Connections
	U1:D5 GPIO14, R2:P1
	R2:P2, U4:1

Net Connections to be removed

Net	Connections
	R2:P1, R2:P2

37 days

No changes applied.

0:46

37 days

K1 A2 - D1 A

R4 P1 - R3 P2

U1 D2 GPIO4 SDA - R1 P1

R4 P1 - R3 P2

K1 A2 - D1 A

R4 P1 - R3 P2

U1 D5 GPIO14 - R2 P1

C7 P1 - K1 COM

R4 P1 - R3 P2

K1 A2 - D1 A

U3 VOUT - U1 3V3

U4 ~ - R3 P1

R4 P1 - R3 P2

U1 D2 GPIO4 SDA - R1 P1

PS1 +VO - D2 A

U4 ~ - R3 P1

D2 K - U3 VIN

U3 VOUT - U1 3V3

R4 P1 - R3 P2

U1 EN - R5 P1

R2 P2 - U4 ~

GND

R2 P2 - U4 ~

GND

Capacitance

10uF

Capacitance

10uF

Resistance

4.7kΩ

Resistance

10kΩ

Resistance

1kΩ

Capacitance

100nF

Resistance

330 Ω

PS1

Reviews

Ground
A common return path for electric current. Commonly known as ground.
jharwinbarrozo
20.5M
Net Portal
Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portal
jharwinbarrozo
43.0M
Power Net Portal
Wirelessly connects power nets on schematic. Identical to the net portal, but with a power symbol. Used to organize schematics and separate functional blocks. To wirelessly connect power net portals, give them the same designator. #portal #power
jharwinbarrozo
11.4M
Generic Resistor
A generic fixed resistor ideal for rapid circuit topology development. Its footprint automatically adapts based on the selected package case code—supporting 0402, 0603, 0805, 1203, and many other standard SMD packages, as well as axial horizontal and vertical configurations. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0 ohm, 10 ohm, 100 ohm, 1.0k ohm, 10k ohm, 100k ohm, 1.0M ohm 1.1 ohm, 11 ohm, 110 ohm, 1.1k ohm, 11k ohm, 110k ohm, 1.1M ohm 1.2 ohm, 12 ohm, 120 ohm, 1.2k ohm, 12k ohm, 120k ohm, 1.2M ohm 1.3 ohm, 13 ohm, 130 ohm, 1.3k ohm, 13k ohm, 130k ohm, 1.3M ohm 1.5 ohm, 15 ohm, 150 ohm, 1.5k ohm, 15k ohm, 150k ohm, 1.5M ohm 1.6 ohm, 16 ohm, 160 ohm, 1.6k ohm, 16k ohm, 160k ohm, 1.6M ohm 1.8 ohm, 18 ohm, 180 ohm, 1.8K ohm, 18k ohm, 180k ohm, 1.8M ohm 2.0 ohm, 20 ohm, 200 ohm, 2.0k ohm, 20k ohm, 200k ohm, 2.0M ohm 2.2 ohm, 22 ohm, 220 ohm, 2.2k ohm, 22k ohm, 220k ohm, 2.2M ohm 2.4 ohm, 24 ohm, 240 ohm, 2.4k ohm, 24k ohm, 240k ohm, 2.4M ohm 2.7 ohm, 27 ohm, 270 ohm, 2.7k ohm, 27k ohm, 270k ohm, 2.7M ohm 3.0 ohm, 30 ohm, 300 ohm, 3.0K ohm, 30K ohm, 300K ohm, 3.0M ohm 3.3 ohm, 33 ohm, 330 ohm, 3.3k ohm, 33k ohm, 330k ohm, 3.3M ohm 3.6 ohm, 36 ohm, 360 ohm, 3.6k ohm, 36k ohm, 360k ohm, 3.6M ohm 3.9 ohm, 39 ohm, 390 ohm, 3.9k ohm, 39k ohm, 390k ohm, 3.9M ohm 4.3 ohm, 43 ohm, 430 ohm, 4.3k ohm, 43K ohm, 430K ohm, 4.3M ohm 4.7 ohm, 47 ohm, 470 ohm, 4.7k ohm, 47k ohm, 470k ohm, 4.7M ohm 5.1 ohm, 51 ohm, 510 ohm, 5.1k ohm, 51k ohm, 510k ohm, 5.1M ohm 5.6 ohm, 56 ohm, 560 ohm, 5.6k ohm, 56k ohm, 560k ohm, 5.6M ohm 6.2 ohm, 62 ohm, 620 ohm, 6.2k ohm, 62K ohm, 620K ohm, 6.2M ohm 6.8 ohm, 68 ohm, 680 ohm, 6.8k ohm, 68k ohm, 680k ohm, 6.8M ohm 7.5 ohm, 75 ohm, 750 ohm, 7.5k ohm, 75k ohm, 750k ohm, 7.5M ohm 8.2 ohm, 82 ohm, 820 ohm, 8.2k ohm, 82k ohm, 820k ohm, 8.2M ohm 9.1 ohm, 91 ohm, 910 ohm, 9.1k ohm, 91k ohm, 910k ohm, 9.1M ohm #generics #CommonPartsLibrary
jharwinbarrozo
1.5M
Generic Capacitor
A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF, 10pF, 100pF, 1000pF, 0.01uF, 0.1uF, 1.0uF, 10uF, 100uF, 1000uF, 10000uF 1.1pF, 11pF, 110pF, 1100pF 1.2pF, 12pF, 120pF, 1200pF 1.3pF, 13pF, 130pF, 1300pF 1.5pF, 15pF, 150pF, 1500pF, 0.015uF, 0.15uF, 1.5uF, 15uF, 150uF, 1500uF 1.6pF, 16pF, 160pF, 1600pF 1.8pF, 18pF, 180pF, 1800pF 2.0pF, 20pF, 200pF, 2000pF 2.2pF, 22pF, 220pF, 2200pF, 0.022uF, 0.22uF, 2.2uF, 22uF, 220uF, 2200uF 2.4pF, 24pF, 240pF, 2400pF 2.7pF, 27pF, 270pF, 2700pF 3.0pF, 30pF, 300pF, 3000pF 3.3pF, 33pF, 330pF, 3300pF, 0.033uF, 0.33uF, 3.3uF, 33uF, 330uF, 3300uF 3.6pF, 36pF, 360pF, 3600pF 3.9pF, 39pF, 390pF, 3900pF 4.3pF, 43pF, 430pF, 4300pF 4.7pF, 47pF, 470pF, 4700pF, 0.047uF, 0.47uF, 4.7uF, 47uF, 470uF, 4700uF 5.1pF, 51pF, 510pF, 5100pF 5.6pF, 56pF, 560pF, 5600pF 6.2pF, 62pF, 620pF, 6200pF 6.8pF, 68pF, 680pF, 6800pF, 0.068uF, 0.68uF, 6.8uF, 68uF, 680uF, 6800uF 7.5pF, 75pF, 750pF, 7500pF 8.2pF, 82pF, 820pF, 8200pF 9.1pF, 91pF, 910pF, 9100pF #generics #CommonPartsLibrary
jharwinbarrozo
1.5M
Generic Inductor
A generic fixed inductor suitable for rapid circuit topology development. The footprint automatically adapts based on the selected package, supporting standard SMD sizes (e.g., 0402, 0603, 0805) as well as well-known inductor packages such as SDR1806, PA4320, SRN6028, and SRR1260. Standard inductor values: 1.0 nH, 10 nH, 100 nH, 1.0 µH, 10 µH, 100 µH, 1.0 mH 1.2 nH, 12 nH, 120 nH, 1.2 µH, 12 µH, 120 µH, 1.2 mH 1.5 nH, 15 nH, 150 nH, 1.5 µH, 15 µH, 150 µH, 1.5 mH 1.8 nH, 18 nH, 180 nH, 1.8 µH, 18 µH, 180 µH, 1.8 mH 2.2 nH, 22 nH, 220 nH, 2.2 µH, 22 µH, 220 µH, 2.2 mH 2.7 nH, 27 nH, 270 nH, 2.7 µH, 27 µH, 270 µH, 2.7 mH 3.3 nH, 33 nH, 330 nH, 3.3 µH, 33 µH, 330 µH, 3.3 mH 3.9 nH, 39 nH, 390 nH, 3.9 µH, 39 µH, 390 µH, 3.9 mH 4.7 nH, 47 nH, 470 nH, 4.7 µH, 47 µH, 470 µH, 4.7 mH 5.6 nH, 56 nH, 560 nH, 5.6 µH, 56 µH, 560 µH, 5.6 mH 6.8 nH, 68 nH, 680 nH, 6.8 µH, 68 µH, 680 µH, 6.8 mH 8.2 nH, 82 nH, 820 nH, 8.2 µH, 82 µH, 820 µH, 8.2 mH #generics #CommonPartsLibrary
jharwinbarrozo
15.8k
Terminal
An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
natarius
RMCF0805JT47K0
47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlink
jharwinbarrozo
1.2M
875105359001
10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcan
jharwinbarrozo
1.2M
CTL1206FYW1T
Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlink
jharwinbarrozo
1.1M

Project Name

Termostato WiFi da Incasso 230Vac NodeMCU

Description

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

Field Int…e - Mains

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

Connectivity

Wi-Fi

System Ar…itecture

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

Software

NodeMCU web server with hysteresis control 0.5 K

Field Inte…e - Boiler

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

Operating Voltage

230 Vac, 50 Hz

Domain

HVAC thermostat

Manufact… Target

Prototype

Isolation Boundary

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

Reliabili…et (MTBF)

Continuous thermostat duty for residential boiler control

Target Phase

Proto

Power R…rements

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

Human Interface

Web page thermostat UI

Compliance

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

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pierpa86 / Termostato WiFi da Incasso 230Vac NodeMCU

Schematic