Schematic for Hiro PH Display 1.0: Sealed ESP32 IP65 Hydro Monitor...

Hydro Sensor Build Assistance

flux

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Work completed:

System architecture defined and saved
ESP32, USB-C panel connector, BNC connector, sensor connectors added
3.3 V regulator and decoupling capacitors placed
Pull-ups (4.7 kΩ), RC filters, ESD diodes added and nets connected
ERC-driven reviews done, passive/component footprints set, MPN replacements applied

Remaining tasks:

Define cable-gland keep-out zones, hydrophobic vent placement, and mounting-hole locations in PCB layout
Classify nets and assign trace widths, configure copper pours and power planes
Place components and route nets on PCB
Perform PCB DRC/ERC in layout and resolve any issues
Develop firmware scaffold and bring-up checklist (outside Flux scope)

Success criteria status:

Schematic is complete with pull-ups, RC filters, decoupling caps, ESD protection: ✅
PCB mechanical allowances (holes, glands, vent) still need layout placement: ❌
Layout separation of analog/RF signals pending routing: ❌
Firmware scaffold and bring-up documentation pending: ❌
ERC/DRC is clean in schematic; layout checks pending: ❌

Next step: Prepare the PCB layout mechanical provisioning step—define mounting holes, cable-gland keep-outs, and vent footprint per the IP65 enclosure in the “Prepare PCB Layout” phase of the workflow.

64 days

Needs more info.

Show Plan

Resistance

500 Ω

R2 P1 - J6 PIN2

R1 P1 - J5 PIN2

R3 P2 - U1 IO34

Capacitance

R3 P2 - U1 IO34

GND

U2 OUT - C1 P1

Capacitance

Resistance

1k Ω

R3 P2 - U1 IO34

C2 P1 - R1 P2

SW1

Resistance

4.7k Ω

R2 P1 - J6 PIN2

R1 P1 - J5 PIN2

R3 P2 - U1 IO34

Resistance

4.7k Ω

R2 P1 - J6 PIN2

Resistance

500 Ω

U2 OUT - C1 P1

R3 P2 - U1 IO34

U2 OUT - C1 P1

R3 P2 - U1 IO34

J3 VBUS_B - U2 IN

Resistance

500 Ω

Resistance

4.7k Ω

R3 P2 - U1 IO34

Resistance

500 Ω

U2 OUT - C1 P1

R3 P2 - U1 IO34

Resistance

500 Ω

C2 P1 - R1 P2

Resistance

4.7k Ω

Resistance

500 Ω

Capacitance

10µ F

Resistance

1k Ω

Reviews

Design Rule Checks

Overlapping Copper • 22

Des	Net	Des	Net
U1:3V3	3V3	J5:PIN2	DHT22_DATA
Trace 85da	Net 1	J5:PIN2	DHT22_DATA
Trace 85da	Net 1	J5:PIN1	None
Trace 85da	Net 1	J5:PIN3	None
Trace 1dce	Net 4	U1:IO35	GND
Trace 1dce	Net 4	U1:GND_5	None
Trace 1dce	Net 4	U1:GND_9	None
Trace 1dce	Net 4	U1:GND_12	None
C4:P1	None	Trace 3a32	Net 3
U1:EN	None	J5:PIN2	DHT22_DATA
U1:GND_2	None	J6:PIN2	DS18B20_DATA
U1:GND_3	None	Trace 40b8	Net 4
U1:IO13	None	J6:PIN2	DS18B20_DATA
U1:IO21	None	Trace 40b8	Net 4
U1:IO22	None	Trace 40b8	Net 4
U1:IO23	None	Trace 40b8	Net 4
U1:NC_1	None	J6:PIN2	DS18B20_DATA
U1:NC_7	None	Trace 40b8	Net 4
U1:NC_7	None	Trace ee04	Net 4
U1:RXD0	None	Trace 40b8	Net 4
U1:SENSOR_VP	None	J5:PIN2	DHT22_DATA
U1:TXD0	None	Trace 40b8	Net 4

Missing Footprints

Reports parts that have no footprint.

Invalid Layer

Reports nodes that are assigned to a layer that doesn't exist in the layout stackup.

Component Overrides

Reports components that have been modified using the "!important" flag.

Airwires • 19

	Designators	Net
	C1:P1, C2:P1	3V3
	C1:P1, U2:OUT	3V3
	R1:P2, R2:P2	3V3
	U1:3V3, D1:VREF	3V3
	U1:3V3, R1:P2	3V3
	U2:OUT, R2:P2	3V3
	J3:VBUS_B, J3:VBUS_A	5V
	U2:IN, J3:VBUS_A	5V
	J5:PIN2, D1:I/O 1	DHT22_DATA
	J5:PIN2, R1:P1	DHT22_DATA
	U1:IO4, D1:I/O 1	DHT22_DATA
	J6:PIN2, D1:I/O 2	DS18B20_DATA
	J6:PIN2, R2:P1	DS18B20_DATA
	J6:PIN2, U1:IO15	DS18B20_DATA
	C3:P1, C2:P2	GND
	Via-3-3:Via-3-3, J4:1	GND
	J4:3, J4:4	Net 6
	J4:3, J4:6	Net 6
	J4:5, J4:4	Net 6

Deprecated Rules

Reports nodes that are using rules that are not supported anymore.

Layers with Multiple Fills

Reports layers that have multiple copper fills of different nets. Make sure the Connected Layers rule value of nets with fills is valid.

Floating Copper • 1

	Name
	Trace a249

Protected Intrusions

Reports intrusions from objects of other nets into polygons or fills that have the Protected layout rule applied.

Manufacturing

Manufacturer Part Number • 17

	Designator	MPN
	M2 Mounting Hole	None
	M2 Mounting Hole	None
	M2 Mounting Hole	None
	M2 Mounting Hole	None
	C1	None
	C2	None
	C3	None
	C4	None
	C5	None
	J1	None
	R1	None
	R2	None
	R3	None
	R4	None
	R5	None
	R6	None
	SW1	None

Parts Available

Beta

Checks that all parts have a part number and are available from distributors.

System Checks

Auto-Layout

Beta

Reports issues with Auto-Layout if Flux cannot route something or must ignore a configuration.

Passive Components

Resistor Power Rating

Beta

Checks that the power traveling across a given resistor is under its rating with 50% headroom.

Learn more

Pull Up/Pull Down Presence

Beta

Checks that IC pins that require pull up or pull down resistors have them.

Learn more

Capacitor Voltage Rating

Beta

Checks that capacitors have appropriate voltage ratings to prevent overheating and ensure reliable circuit operation.

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 for rapid developing circuit topology. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0Ω 10Ω 100Ω 1.0kΩ 10kΩ 100kΩ 1.0MΩ 1.1Ω 11Ω 110Ω 1.1kΩ 11kΩ 110kΩ 1.1MΩ 1.2Ω 12Ω 120Ω 1.2kΩ 12kΩ 120kΩ 1.2MΩ 1.3Ω 13Ω 130Ω 1.3kΩ 13kΩ 130kΩ 1.3MΩ 1.5Ω 15Ω 150Ω 1.5kΩ 15kΩ 150kΩ 1.5MΩ 1.6Ω 16Ω 160Ω 1.6kΩ 16kΩ 160kΩ 1.6MΩ 1.8Ω 18Ω 180Ω 1.8KΩ 18kΩ 180kΩ 1.8MΩ 2.0Ω 20Ω 200Ω 2.0kΩ 20kΩ 200kΩ 2.0MΩ 2.2Ω 22Ω 220Ω 2.2kΩ 22kΩ 220kΩ 2.2MΩ 2.4Ω 24Ω 240Ω 2.4kΩ 24kΩ 240kΩ 2.4MΩ 2.7Ω 27Ω 270Ω 2.7kΩ 27kΩ 270kΩ 2.7MΩ 3.0Ω 30Ω 300Ω 3.0KΩ 30KΩ 300KΩ 3.0MΩ 3.3Ω 33Ω 330Ω 3.3kΩ 33kΩ 330kΩ 3.3MΩ 3.6Ω 36Ω 360Ω 3.6kΩ 36kΩ 360kΩ 3.6MΩ 3.9Ω 39Ω 390Ω 3.9kΩ 39kΩ 390kΩ 3.9MΩ 4.3Ω 43Ω 430Ω 4.3kΩ 43KΩ 430KΩ 4.3MΩ 4.7Ω 47Ω 470Ω 4.7kΩ 47kΩ 470kΩ 4.7MΩ 5.1Ω 51Ω 510Ω 5.1kΩ 51kΩ 510kΩ 5.1MΩ 5.6Ω 56Ω 560Ω 5.6kΩ 56kΩ 560kΩ 5.6MΩ 6.2Ω 62Ω 620Ω 6.2kΩ 62KΩ 620KΩ 6.2MΩ 6.8Ω 68Ω 680Ω 6.8kΩ 68kΩ 680kΩ 6.8MΩ 7.5Ω 75Ω 750Ω 7.5kΩ 75kΩ 750kΩ 7.5MΩ 8.2Ω 82Ω 820Ω 8.2kΩ 82kΩ 820kΩ 8.2MΩ 9.1Ω 91Ω 910Ω 9.1kΩ 91kΩ 910kΩ 9.1MΩ #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 10,000uF 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 20pF 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 for rapid developing circuit topology. *You can now change the footprint and 3D model at the top level anytime you want. This is the power of #generics
jharwinbarrozo
15.0k
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

Inspect

Hiro PH Display 1.0

Controls

Properties

Human Interface

Touchscreen, Display, Buttons

Domain

Scientific

Software

Arduino

Operating Voltage

3.3 V

System Architecture

graph LR USBC["USB-C Panel Connector"] ESP32["ESP32-2432S028R Module"] Display["2.8\" CYD TFT Display"] BNC["Panel BNC Connector"] DHT22["DHT22 Humidity Sensor"] DS18B20["DS18B20 1-Wire Temperature Sensor"] pH_Module["pH Sensor Module"] TDS_Module["TDS/EC Sensor Module"] CableGlands["Cable Glands"] Vent["Hydrophobic Vent"] USBC --> ESP32 ESP32 --> Display ESP32 --> DHT22 ESP32 --> DS18B20 ESP32 --> pH_Module ESP32 --> TDS_Module DHT22 --> CableGlands DS18B20 --> CableGlands pH_Module --> BNC Vent

Size

100mm by 60mm

Connectivity

WiFi

Power Requirements

USB

Stackup

4 Layer (Top, GND, 3V3, Bottom)

Availability & Pricing

Distributor		Qty 1
	Arrow	$3.85–$7.38
	Digi-Key	$8.43–$9.51
	LCSC	$12.75
	Mouser	$16.29–$16.68
	TME	$10.34
	Verical	$7.45–$20.62

Assets

Hiro-logo-white.svg

id=Hiro-logo-white

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