Schematic for Arduino Uno R3 Shield Max485 single 1zSQ: Template...

Wiring DHT22 Sensor

flux

0:22

General (prev)

Chat History

Project

I've prepared the schematic changes for your DHT22 sensor integration:

DHT22 Sensor Addition:
- Place the DHT22 component on the schematic.
Power Connections:
- Wire the DHT22’s VCC pin to the shield's +5V net (e.g. +5V A).
- Connect the sensor’s GND pin to the Ground component.
Data Connection:
- Connect the DHT22’s Data pin to digital pin D2 on the Arduino shield.
Pull-Up Resistor:
- Add a 4.7 kΩ resistor (e.g. 4.7kΩ resistor) between the DHT22’s Data pin and the +5V net.

Click the Apply changes button below to update the schematic with these modifications.

162 days

archittcs1907

The changes are live. Can you verify if the pull-up resistor is optimally placed for signal integrity?

162 days

flux

0:22

General (prev)

Chat History

Project

The pull‐up resistor is wired correctly between the Data pin and +5V, which is standard for digital sensors like the DHT22. For optimal signal integrity, consider the following guidelines:

Proximity:
Place the pull-up resistor physically close to the DHT22’s Data pin to keep trace lengths short and reduce parasitic capacitance and electromagnetic interference.
Trace Routing:
Use a direct trace from the resistor to the power net and the sensor. Avoid routing the signal trace near high switching or noisy traces for best integrity.
Grounding:
Ensure robust grounding for both the sensor and the power supply to minimize noise on the signal line.

Based on your current schematic connections, the resistor placement is optimal if the physical layout follows these practices. If your PCB layout keeps the resistor close to the sensor, it should function well for maintaining a clean signal.

Would you like any further assistance on layout best practices or another check?

162 days

Ready.

Capacitance

10u F

Resistance

10k Ω

J11

J15

Resistance

20k Ω

VIN A

J10

Resistance

1k Ω

5VDC A

LED1

pin 2 pin 3

Resistance

10k Ω

+3V3 A

Outline

Resistance

10k Ω

+5V A

VIN A

J16

Resistance

20k Ω

3.3VDC A

+3V3 A

Resistance

120 Ω

Capacitance

0.1u F

GND A

IC1

J13

+5V A

J17

J14

Resistance

10k Ω

J12

Arduino Uno R3 PINOUT

Reviews

Electrical Rule Checks

Missing Footprints

Reports parts that have no footprint.

Design Rule Checks

Overlapping Copper • 169

Des	Net	Des	Net
Trace 4071	Net - (2caa - fd60)	3.3VDC A:P1	None
Trace 4761	Net - (2caa - fd60)	3.3VDC A:P2	None
Via	Net - (2caa - fd60)	J2:Pin_4	None
Trace 3996	Net (2caa - Pin_2)	pin 2 pin 3:P1	None
Trace 292b	Net (3c58 - P1)	J11:P1	None
Trace 7032	Net (3c58 - P1)	J3:Pin_4	None
Trace 0b49	Net (4da6 - P1)	J10:P1	None
Trace 3391	Net (4da6 - P1)	J10:P1	None
Trace e4a0	Net (4da6 - P1)	J1:Pin_1	None
Trace 0a61	Net (4da6 - P2)	J1:Pin_2	None
Trace 0a61	Net (4da6 - P2)	J10:P2	None
Trace 502a	Net (6fe3 - P2)	pin 2 pin 3:P2	None
Trace 3886	Net (8dcd - P1)	J3:Pin_6	None
Trace 7258	Net (8dcd - P1)	J6:P1	None
Trace 4cc3	Net (13d2 - P1)	J1:Pin_5	None
Trace 10e0	Net (13d2 - P1)	J7:P1	None
Trace 582c	Net (13d2 - P2)	J1:Pin_6	None
Trace 252a	Net (45d6 - P2)	J4:Pin_5	None
Trace 2b18	Net (68e2 - P2)	C2:P2	None
Trace 2d3d	Net (68e2 - P2)	R8:P2	None
Trace 363f	Net (68e2 - P2)	LED1:A	None
Trace 420a	Net (68e2 - P2)	C2:P2	None
Trace 06c0	Net (857c - P1)	5VDC A:PIN1	None
Trace 98d7	Net (857c - P1)	IC1:VCC	None
Trace 103a	Net (857c - P1)	R4:P1	None
Trace 156f	Net (857c - P1)	5VDC A:PIN2	None
Trace 156f	Net (857c - P1)	5VDC A:PIN3	None
Trace 1219	Net (857c - P1)	IC1:VCC	None
Trace 3260	Net (857c - P1)	5VDC A:PIN1	None
Trace 4212	Net (857c - P1)	R8:P1	None
Trace 4370	Net (857c - P1)	5VDC A:PIN2	None
Trace c59a	Net (857c - P1)	IC1:VCC	None
Trace c786	Net (857c - P1)	R4:P1	None
Trace e70a	Net (857c - P1)	R4:P1	None
Trace 2cea	Net (5344 - P1)	J8:P1	None
Trace 45f8	Net (5344 - P1)	J1:Pin_3	None
Trace c42f	Net (5344 - P2)	J1:Pin_4	None
Trace 5437	Net (a3e8 - Pin_1)	J12:P2	None
Trace c654	Net (a3e8 - Pin_1)	J12:P2	None
Trace e0c2	Net (a3e8 - Pin_1)	J12:P2	None
Trace 4109	Net (a3e8 - Pin_3)	J3:Pin_3	None
Trace c83b	Net (a3e8 - Pin_7)	J5:P2	None
Trace ac0d	Net (a3e8 - Pin_8)	J5:P1	None
Trace 0876	Net (a3e8 - Pin_9)	J17:P2	None
Trace bcbf	Net (a3e8 - Pin_9)	J17:P2	None
Trace 0f9b	Net (a3e8 - Pin_10)	J3:Pin_10	None
Trace 52a2	Net (a3e8 - Pin_10)	J17:P1	None
Trace 7f69	Net (a8af - P2)	J4:Pin_7	None
Trace 6243	Net (a8af - P2)	J16:P2	None
Trace 5b85	Net (a575 - P2)	VIN A:P2	None
Trace 7e38	Net (a575 - P2)	VIN A:P1	None
Trace 7e38	Net (a575 - P2)	VIN A:P2	None
Trace 3156	Net (a575 - P2)	VIN A:P2	None
Via	Net (a575 - P2)	VIN A:P2	None
Trace 2a4a	Net (a939 - Pin_2)	R4:P2	None
Trace 03d5	Net (a939 - Pin_2)	IC1:DI	None
Trace 12bb	Net (a939 - Pin_2)	J13:P1	None
Trace 3433	Net (a939 - Pin_2)	J4:Pin_2	None
Trace 4120	Net (a939 - Pin_2)	J4:Pin_2	None
Trace 9745	Net (a939 - Pin_2)	J4:Pin_2	None
Trace d799	Net (a939 - Pin_2)	IC1:DI	None
Trace 50e6	Net (a939 - Pin_4)	J4:Pin_4	None
Trace a22e	Net (a939 - Pin_4)	J14:P1	None
Trace 572c	Net (a939 - Pin_6)	J4:Pin_6	None
Trace 8e4c	Net (dcf4 - ～RE)	J4:Pin_3	None
Trace 68fe	Net (dcf4 - ～RE)	R3:P2	None
Trace 368e	Net (dcf4 - ～RE)	IC1:～RE	None
Trace 379f	Net (dcf4 - ～RE)	J14:P2	None
Trace 3935	Net (dcf4 - ～RE)	J4:Pin_3	None
Trace b49d	Net (dcf4 - ～RE)	IC1:DE	None
Trace 73d2	Net (dcf4 - A)	J9:PIN2	None
Trace 0217	Net (dcf4 - A)	J9:PIN2	None
Trace 2480	Net (dcf4 - A)	R7:P2	None
Trace 3600	Net (dcf4 - A)	IC1:A	None
Trace a097	Net (dcf4 - A)	IC1:A	None
Trace 6cea	Net (dcf4 - B)	IC1:B	None
Trace 6dd9	Net (dcf4 - B)	R5:P1	None
Trace 07a5	Net (dcf4 - B)	R5:P1	None
Trace 8a5e	Net (dcf4 - B)	IC1:B	None
Trace 33f1	Net (dcf4 - B)	R7:P1	None
Trace 6095	Net (dcf4 - B)	R5:P1	None
Trace 6095	Net (dcf4 - B)	R7:P1	None
Via	Net (dcf4 - B)	IC1:B	None
Trace 0f03	Net (dcf4 - RO)	R1:P2	None
Trace 59cf	Net (dcf4 - RO)	IC1:RO	None
Trace 0745	Net (dcf4 - RO)	J4:Pin_1	None
Trace 794c	Net (dcf4 - RO)	IC1:RO	None
Trace 794c	Net (dcf4 - RO)	R1:P2	None
Trace 2434	Net (dcf4 - RO)	J4:Pin_1	None
Trace 4946	Net (dcf4 - RO)	R1:P2	None
Trace 6996	Net (dcf4 - RO)	J4:Pin_1	None
Trace acd4	Net (dcf4 - RO)	J13:P2	None
Via	Net (dcf4 - RO)	R1:P2	None
Trace 4af5	Net (ff24 - P1)	J12:P1	None
Trace b6bc	Net (ff24 - P1)	J12:P1	None
Trace e670	Net (ff24 - P1)	J12:P1	None
Trace eb9a	Net (ff24 - P1)	J12:P1	None
3.3VDC A:P1	None	Trace e972	Net - (2caa - fd60)
3.3VDC A:P2	None	Trace e972	Net - (2caa - fd60)
5VDC A:PIN1	None	Trace c9d2	Net (857c - P1)
5VDC A:PIN2	None	Trace c9d2	Net (857c - P1)
5VDC A:PIN3	None	Trace 8d3f	Net (857c - P1)
C1:P2	None	Trace 2b18	Net (68e2 - P2)
C1:P2	None	Trace 363f	Net (68e2 - P2)
IC1:A	None	Trace f71e	Net (dcf4 - A)
IC1:DE	None	Trace fc9d	Net (dcf4 - ～RE)
J1:Pin_5	None	Trace f9aa	Net (13d2 - P1)
J2:Pin_2	None	Trace 673e	Net (2caa - Pin_2)
J2:Pin_3	None	Trace 502a	Net (6fe3 - P2)
J2:Pin_4	None	Trace 472e	Net - (2caa - fd60)
J2:Pin_4	None	Trace cbb6	Net - (2caa - fd60)
J2:Pin_4	None	Trace e501	Net - (2caa - fd60)
J2:Pin_4	None	Trace ea8a	Net - (2caa - fd60)
J2:Pin_5	None	Trace f3d4	Net (857c - P1)
J2:Pin_8	None	Trace 5071	Net (a575 - P2)
J2:Pin_8	None	Trace a679	Net (a575 - P2)
J3:Pin_1	None	Trace db9a	Net (a3e8 - Pin_1)
J3:Pin_2	None	Trace f26c	Net (ff24 - P1)
J3:Pin_5	None	Trace c999	Net (a3e8 - Pin_5)
J3:Pin_7	None	Trace a5eb	Net (a3e8 - Pin_7)
J3:Pin_8	None	Trace ac0d	Net (a3e8 - Pin_8)
J3:Pin_8	None	Trace b185	Net (a3e8 - Pin_8)
J3:Pin_9	None	Trace fdf3	Net (a3e8 - Pin_9)
J4:Pin_1	None	Trace e1b5	Net (dcf4 - RO)
J4:Pin_1	None	Trace f66d	Net (dcf4 - RO)
J4:Pin_2	None	Trace b60b	Net (a939 - Pin_2)
J4:Pin_2	None	Trace bf08	Net (a939 - Pin_2)
J4:Pin_2	None	Via	Net (a939 - Pin_2)
J4:Pin_7	None	Trace bff6	Net (a8af - P2)
J4:Pin_8	None	Trace f92a	Net (a939 - Pin_8)
J6:P2	None	Trace ab15	Net (a3e8 - Pin_5)
J7:P1	None	Trace 4d1b	Net (13d2 - P1)
J7:P2	None	Trace 8bb7	Net (13d2 - P2)
J7:P2	None	Trace 24f5	Net (13d2 - P2)
J8:P2	None	Trace e4e5	Net (5344 - P2)
J9:PIN1	None	Trace be17	Net (dcf4 - B)
J10:P1	None	Trace 5b36	Net (4da6 - P1)
J10:P2	None	Trace 9a4f	Net (4da6 - P2)
J10:P2	None	Trace 66c0	Net (4da6 - P2)
J10:P2	None	Trace c714	Net (4da6 - P2)
J11:P2	None	Trace 4109	Net (a3e8 - Pin_3)
J11:P2	None	Trace f4a4	Net (a3e8 - Pin_3)
J11:P2	None	Trace f688	Net (a3e8 - Pin_3)
J15:P1	None	Trace d9a4	Net (a939 - Pin_6)
J15:P2	None	Trace e43d	Net (45d6 - P2)
J16:P1	None	Trace e5bd	Net (a939 - Pin_8)
LED1:A	None	Trace d3c4	Net (68e2 - P2)
LED1:A	None	Trace ed57	Net (68e2 - P2)
pin 2 pin 3:P2	None	Trace 939e	Net (6fe3 - P2)
R1:P1	None	Trace 9427	Net (857c - P1)
R1:P1	None	Trace bb0f	Net (857c - P1)
R2:P1	None	Trace 3aac	Net (857c - P1)
R2:P1	None	Trace 79f9	Net (857c - P1)
R2:P1	None	Trace 9427	Net (857c - P1)
R2:P2	None	Trace 68fe	Net (dcf4 - ～RE)
R2:P2	None	Trace 3892	Net (dcf4 - ～RE)
R3:P1	None	Trace 79f9	Net (857c - P1)
R3:P1	None	Trace e70a	Net (857c - P1)
R6:P1	None	Trace 8c06	Net (dcf4 - A)
R6:P2	None	Trace d4dd	Net (857c - P1)
R7:P1	None	Trace d7a2	Net (dcf4 - B)
R7:P1	None	Trace ef4a	Net (dcf4 - B)
R7:P1	None	Via	Net (dcf4 - B)
R8:P1	None	Trace c786	Net (857c - P1)
U1:-	None	Trace 98d7	Net (857c - P1)
U1:+	None	Trace 98d7	Net (857c - P1)
U1:～	None	Trace 98d7	Net (857c - P1)
VIN A:P2	None	Trace ca80	Net (a575 - P2)
VIN A:P2	None	Trace fb67	Net (a575 - P2)

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

Reports missing routed traces between pads in a net.

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 • 10

	Name
	Trace 3625, Trace e856
	Trace 5252
	Trace 08c9, Trace 91bf, Trace fe24
	Trace b1b7
	Trace 7ce2, Trace ff8a
	Trace fe5c
	Trace b411
	Trace dd85
	Trace 5298
	Trace e77e

Protected Intrusions

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

Manufacturing

Manufacturer Part Number • 4

	Designator	MPN
	J1	None
	J2	None
	J3	None
	J4	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

Arduino Uno R3 Shield Max485 single 1zSQ

Controls

Properties

Availability & Pricing

Distributor		Qty 1
	Arrow	$4.19–$11.48
	Digi-Key	$14.49–$15.55
	LCSC	$4.03
	Mouser	$14.19
	TME	$0.79
	Verical	$0.24–$0.45

Assets

3d Model

Arduino UNO.STEP

id=Arduino UNO 3D

Arduino UNO R3 shield - Shape.dxf

id=Arduino UNO R3 shield - Shape

DefaultThumbnail

Arduino_UNO_R3_Tumb.svg

id=Arduino_UNO_R3_Tumb

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