Schematic for ESP Smart Watch

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Hi! Can the OLED module in my schematic be powered with 3v3 ?

mekicaman

@copilot Hi! Can the OLED module in my schematic be powered with 3v3 ?

11mo

copilot

Hello! The OLED module you have, referred to as OLED1, has a pin labeled as "5V" for power. This typically indicates that the module is designed to operate at 5 volts.

Powering it with 3.3V might not provide enough voltage for the display to function correctly or at full brightness. However, some OLED modules can work with a slightly lower voltage, but it significantly depends on the specific module and its internal power regulation.

To be sure, I recommend checking the datasheet of the specific OLED module you're using to see if it supports 3.3V operation. If it does not, you'll need to supply 5V to the OLED1. Let me know if you need help with anything else!

11mo

copilot

The MPU-6050 is a 6-axis motion tracking device that typically operates within a voltage range of 2.375V to 3.46V. Therefore, it can be powered directly from a 3.3V supply, which is a common voltage level in many projects featuring microcontrollers like the ESP32-S3-WROOM-1-N8R8.

If you have further questions about your project or need help with connections, feel free to ask!

11mo

mekicaman

Can you tell me the MPU 6050 how much volt it requires ?

11mo

mekicaman

Will the OLED work with 3v3 insted of 5 ?

11mo

copilot

The specific OLED module's datasheet or documentation will tell you if it can operate at 3.3V instead of 5V. However, many OLED modules, especially those designed for hobbyist and DIY use, often have some flexibility in their operating voltage range.

Here's a general guideline:

Check the Datasheet: Look for the operating voltage range. If it includes 3.3V, then it should work fine.
Module Specifications: Some modules come with an onboard voltage regulator allowing them to work with both 3.3V and 5V. If yours has this feature, it might be fine to use it at 3.3V.
Brightness and Performance: If the module does indeed work at 3.3V, it might operate at reduced brightness or responsiveness compared to when it's powered with 5V.

In your current project setup, the OLED module's power pin is labeled "5V." If this module is designed to operate at exactly 5V and does not support 3.3V, powering it with 3.3V will likely result in insufficient power for proper operation.

Would you like any further assistance in this context? If you provide more details on the OLED module, I might be able to give more accurate advice!

11mo

mekicaman

Examine the curcuit for some errors please

11mo

copilot

Certainly! Let's go through the key parts of your schematic to identify any potential issues or areas of improvement:

General Observations

Power Supply:
- Ensure that all components requiring specific voltage levels are correctly connected. For instance, the ESP32-S3-WROOM-1-N8R8 should be powered by 3.3V, and ensure that the 3.3V rail is capable of sourcing enough current for all connected components.
MPU-6050 Connections:
- Ensure that the I2C lines ( $U3:SCL$ and $U3:SDA$ ) are pulled up to 3.3V using resistors typically in the range of 4.7kΩ to 10kΩ.
ESP32 Connections:
- Ensure all necessary pins for operation, such as $U1:EN$ , are correctly configured. Frequently, the EN pin is pulled up to keep the ESP32 enabled.
Battery Management (TP4056):
- Verify proper connections for power input and charging outputs and ensure that components like $U5:PROG$ are correctly set with resistors to determine the charging current.
OLED Module:
- For connections related to $OLED2$ (power, SDA, SCL), ensure they match the device's specifications for power and signaling.
Switches:
- Check that switches are correctly debounced if needed and ensure they are connected as expected. Their connections to pins like I/O ports of the ESP32-S3-WROOM-1-N8R8 should be verified.

Specific Recommendations

Check Ground Connections: Ensure all components have a common ground net connection.
Decoupling Capacitors: Ensure decoupling capacitors are present and properly rated (e.g., 100nF) on voltage supply lines near microcontrollers and ICs.
Unused Pins: Make sure unused pins on the ESP32 and other ICs are handled according to their datasheets (pulled high/low or left floating as required).
Net Name Conflicts: Ensure there are no conflicting net names, especially around the power and ground nets.
Voltage Levels: Confirm there is no logic level mismatch between components, especially when interfacing 3.3V and 5V devices.

If you have particular connections or sections you'd like more detail on, let me know! If any specific structures or sections of the schematic appear out of place or incorrect, please provide more details so I can assist further.

11mo

MOSI/PWM

IO4

IO10

3V3

R13

Resistance

10k Ω

3V3

IO18

IO2

IO5

GDO2

3V3

GDO0

IO2

CSN

Resistance

1.2k Ω

IO20

Voltage identification

R14

Resistance

100k Ω

Res

IO19

IO09

IO16

IO11

Voltage identification

IO15

3V3

SCLK / PWM

MOSI/PWM

3V3

IO14

R15

Resistance

100k Ω

IO17

GDO2

CSN

IO12

IO5

GDO0

IO09

IO13

3V3

MISO/PWM

IO12

Res

Resistance

10k Ω

IO10

IO14

R12

Resistance

10k Ω

Bat

IO13

C11

Capacitance

0.1u F

Capacitance

0.1u F

Capacitance

1u F

Power -

Battery +

C10

Capacitance

0.1u F

OLED2

RES

SW3

C12

Capacitance

0.1u F

ENTER

DOWN

Capacitance

1u F

Capacitance

100n F

Reviews

Electrical Rule Checks

Duplicate Designators

Reports components with identical designators.

No-Connect Violation

Reports no-connect pins that are connected.

Missing Power • 5

	Component
	AMS1117-3.3 U2
	TYPEC-304-BCP16 J1
	TP4056 U5
	MPU-6050 U3
	DS3231SN# IC1

Single Pin Nets

Reports nets that have only one pin connected.

Missing Designator • 4

	Component
	M2 Mounting Hole
	M2 Mounting Hole
	M2 Mounting Hole
	M2 Mounting Hole

Design Rule Checks

Overlapping Copper • 10

Des	Net	Des	Net
Trace 6483	Net 2	J3:Pin_4	Net 14
C11:P1	Net 10	Trace c24e	Net 13
Trace 85f4	Net 10	Trace c24e	Net 13
Trace 9754	Net 10	Trace c24e	Net 13
Trace 9789	Net 10	Trace c24e	Net 13
Trace 4c79	Net 14	Through-hole - 1	Net 2
Trace 6ef5	Net 14	Through-hole - 1	Net 2
Trace af06	Net 14	Through-hole - 1	Net 2
Trace bf95	Net 14	Through-hole - 1	Net 2
Trace d53f	Net 14	Through-hole - 1	Net 2

Invalid Layer

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

Component Overrides • 67

	Designator	Ruleset
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀VALUE｀＊	Override rule for ＊｀VALUE｀＊
	＊｀VALUE｀＊	Override rule for ＊｀VALUE｀＊
	＊｀VALUE｀＊	Override rule for ＊｀VALUE｀＊
	＊｀VALUE｀＊	Override rule for ＊｀VALUE｀＊
	＊｀VALUE｀＊	Override rule for ＊｀VALUE｀＊
	＊｀VALUE｀＊	Override rule for ＊｀VALUE｀＊
	＊｀VALUE｀＊	Override rule for ＊｀VALUE｀＊
	＊｀VALUE｀＊	Override rule for ＊｀VALUE｀＊
	＊｀VALUE｀＊	Override rule for ＊｀VALUE｀＊
	＊｀VALUE｀＊	Override rule for ＊｀VALUE｀＊
	＊｀VALUE｀＊	Override rule for ＊｀VALUE｀＊
	＊｀VALUE｀＊	Override rule for ＊｀VALUE｀＊
	＊｀VALUE｀＊	Override rule for ＊｀VALUE｀＊
	＊｀VALUE｀＊	Override rule for ＊｀VALUE｀＊
	＊｀VALUE｀＊	Override rule for ＊｀VALUE｀＊
	＊｀VALUE｀＊	Override rule for ＊｀VALUE｀＊
	＊｀VALUE｀＊	Override rule for ＊｀VALUE｀＊
	＊｀VALUE｀＊	Override rule for ＊｀VALUE｀＊
	＊｀VALUE｀＊	Override rule for ＊｀VALUE｀＊
	＊｀VALUE｀＊	Override rule for ＊｀VALUE｀＊
	＊｀VALUE｀＊	Override rule for ＊｀VALUE｀＊
	＊｀VALUE｀＊	Override rule for ＊｀VALUE｀＊
	＊｀VALUE｀＊	Override rule for ＊｀VALUE｀＊
	＊｀VALUE｀＊	Override rule for ＊｀VALUE｀＊
	＊｀VALUE｀＊	Override rule for ＊｀VALUE｀＊
	＊｀VALUE｀＊	Override rule for ＊｀VALUE｀＊
	＊｀VALUE｀＊	Override rule for ＊｀VALUE｀＊
	＊｀VALUE｀＊	Override rule for ＊｀VALUE｀＊
	SSD1306	Override rule for SSD1306
	Text Shape	Override rule for Text Shape

Airwires • 9

	Designators	Net
	RES:D, RES:C	GND
	Through-hole - 1:Through-hole - 1, Through-hole - 1:Through-hole - 1	GND
	UP:A, RES:D	GND
	EN:A, EN:B	Net 1
	EN:A, Trace 0259:Trace 0259	Net 1
	Vbat +:Vbat +, Trace 841b:Trace 841b	Net 4
	RES:A, RES:B	Net 5
	U1:IO1, RES:A	Net 5
	Trace 374a:Trace 374a, J3:Pin_4	Net 14

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 • 17

	Name
	Copper Fill Island
	Trace 09f2
	Trace 623b
	Trace 2990, Trace 4970, Through-hole - 1, Trace e954, Trace fdb8, Trace 8325, Trace 7a6b, Trace 6483
	Trace 6483
	Trace 67d7
	Trace 4e0d
	Trace 0faa
	Trace 95a4
	Trace 0ba3, Trace e82c, Trace e594, Trace e1dc, Trace fbd3
	Trace aab7
	Trace c24e
	Trace 1f80, Trace 9982
	Trace 25c2, Trace 90c5
	Trace 9dab
	Trace cab4
	Trace 2d18, Trace 616c

Protected Intrusions

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

Missing Footprints

Reports components that need a footprint but don't have one.

Manufacturing

Manufacturer Part Number • 5

	Designator	MPN
	M2 Mounting Hole	None
	M2 Mounting Hole	None
	M2 Mounting Hole	None
	M2 Mounting Hole	None
	OLED2	None

Parts Available

Beta

Checks that all components 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.

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Pull Up/Pull Down Presence

Beta

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

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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
15.1k
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

ESP Smart Watch

Controls

Properties

Availability & Pricing

Distributor		Qty 1
	Arrow	$9.05–$13.71
	Digi-Key	$25.30–$32.10
	LCSC	$16.50–$18.39
	Mouser	$23.04
	Verical	$9.13–$14.40

Assets

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