Compact PCB Design for WINO

Applied changes.

0:08

nets {

net VBAT = U2:VCC, J4:P1, U5:VBAT, C13:P1, C10:P1, J3:VCC, U6:EN, U6:IN;

net 3V3 = U1:IO0, U6:OUT, C7:P1, R3:P1, C2:P1, C8:P1, C6:P1, U4:10, U4:9, U4:VDD, U3:V_BCKP, U3:VCC, U1:3V3, M1:3.3V, R4:P1, C12:P1, C5:P1, C4:P1, C3:P1, C1:P1, R6:P1, U1:EN, C11:P1;

net GND = GND:GND, J3 GND - J4 P2:GND, C4:P2, C3:P2, J3 GND - J3 GND:GND, J3:G6, J3:G2, J3:C5, J3:G4, J3:G1, U3 GND_2 - U3 GND_3:GND, M1:GND, R1 P2 - R2 P2:GND, R1:P2, C9:P2, R2:P2, U6:GND, U3:GND_2, U3:GND_1, C1:P2, J1 SHELL_GND__3 - U1 GND:GND, U1:1, M1:AD0, U4 PGND - U5 VSS:GND, J2:GND_3, C6:P2, C10:P2, J3:G3, U2:GND, C13:P2, J2:GND_1, U1:2, C7:P2, J4:P2, U4:GND, U4:PGND, U5:VSS, U3:GND_3, C2:P2, J1:SHELL_GND__3, J1:SHELL_GND__2, J1:SHELL_GND__1, J1:SHELL_GND, J1:GND__1, C5:P2, U3:GND_4, C11:P2, Q1:E, C8:P2, C12:P2, J2:GND_2, J3:G5, J1:GND;

net SIM_RX = J3:I/O, U1:IO18, U2:RXD;

net USB_CC1 = R1:P1, J1:CC1;

net I2C_SCL = U1:IO9, R4:P2, M1:SCL, U4:SCL;

net USB_CC2 = J1:CC2, R2:P1;

net VBUS_5V = U5:VIN, C9:P1, J1:VBUS__1, J1:VBUS;

net SIM_RST = Q1:C, J3:CLK, U2:RST, R6:P2, J3:RST;

net I2C_SDA = M1:SDA, U1:IO8, U4:SDA, R3:P2;

net GPS_RF = J2:SIGNAL, U3:RF_IN;

net MAX_INT = U4:~INT, U1:IO10;

net USB_D+ = J1:DP1, U1:IO20, J1:DP2;

net SIM_TX = U1:IO17, U2:TXD;

net SIM_PWRKEY_CTRL = R5:P2, U1:IO12;

net USB_D- = U1:IO19, J1:DN1, J1:DN2;

net GPS_RX = U1:IO16, U3:TXD1;

net GPS_TX = U1:IO15, U3:RXD1;

net SIM_PWRKEY_BASE = R5:P1, Q1:B;

}

4 days

replacing SIM800L and adding termination parts...

4:24

Running design review.

Analyzing the schematic.

4 days

Added 5 components and Removed 1 component

0:09

Added 1x SIM800L as U2 (Pins: ISINK0, UART_DTR, GND::38, ROW4, VRTC, FM_ANT_N, PCMIN, BPI_BUS1, SIM_CLK, GND::8, GND::58, GND::85, GND::87, ISINK1, GND::6 ... and 73 more)

Added 3x Generic Resistor as R7, R8, R9 (Pins: P2, P1)

Added 1x Generic Capacitor as C14 (Pins: P1, P2)

Removed U2

⚠️ Removed components had their net connections destroyed. Use the connections tool with a `view` action to verify connectivity and re-wire any lost connections.

4 days

Set Resistance to "10kΩ" on R6, Set Role to "Pull-Up" on R6, and 4 more changes

0:04

Set R6's Resistance to "10kΩ"

Set R6's Role to "Pull-Up"

Set R6's Role Details to "SIM800L SIM_RST pull-up to 3V3"

Set C10's Capacitance to "100nF"

Set C10's Role to "Decoupling"

Set C10's Role Details to "High-frequency bypass on VBAT rail near SIM800L and power entry"

4 days

flux

0:11

I replaced the placeholder modem with a full-pin SIM800L and I am now doing the cascading rewire by pin function rather than pin number. I am also enforcing the requested physical constraints next so the modem antenna area and top-side placement are explicit before final validation.

4 days

rewired modem core nets and hit layout rule errors

5:21

Started: rewiring full-pin modem and applying layout constraints

Working.

4 days

Updated 12 connections

0:59

Connected U2:VBAT, U2:VBAT, C13:P1, C10:P1, C14:P1, J4:P1, U5:VBAT, U6:IN, U6:EN to ^VBAT

Connected U2:GND, U2:GND, U2:GND, U2:GND, U2:GND, U2:GND, U2:GND, U2:GND, U2:GND, U2:GND, U2:GND, U2:GND, U2:GND, U2:GND, U2:GND, U2:GND, U2:GND, U2:GND, U2:GND, U2:GND, U2:GND, U2:GND, U2:GND, U2:GND, U2:GND, U2:GND, U2:GND, U2:GND, U2:GND, C14:P2 to ^GND

Connected U2:UART_TXD, U1:IO17 to ^SIM_TX

Connected U2:UART_RXD, U1:IO18 to ^SIM_RX

Connected U2:SIM_DATA, J3:I/O to ^SIM_DATA

Connected U2:SIM_CLK, J3:CLK to ^SIM_CLK

Connected U2:SIM_RST, J3:RST, R6:P2 to ^SIM_RST

Connected R6:P1 to ^3V3

Connected U2:VSIM, J3:VCC to ^VSIM

Connected U2:SIMPRE to ^SIM_DET

Connected Q1:C, U2:PWRKEY to ^SIM_PWRKEY

Disconnected J3:I/O, J3:CLK, J3:RST, J3:VCC, Q1:C, R6:P2

nets {

net 3V3 = R6:P1, U1:IO0, U6:OUT, C7:P1, R3:P1, C2:P1, C8:P1, C6:P1, U4:10, U4:9, U4:VDD, U3:V_BCKP, U3:VCC, U1:3V3, M1:3.3V, R4:P1, C12:P1, C5:P1, C4:P1, C3:P1, C1:P1, U1:EN, C11:P1;

net GND = GND:GND, U2 GND - C14 P2:GND, C14:P2, U2:88, U2:87, U2:86, U2:85, U2:84, U2:83, U2:82, U2:81, U2:80, U2:79, U2:78, U2:77, U2:76, U2:73, U2:72, U2:71, U2:67, U2 GND - U2 GND:GND, U2:58, U2:45, U2:44, U2:43, U2:41, U2:39, U2:38, U2:37, U2:35, U2:8, U2:6, U2:2, J3 GND - J4 P2:GND, C4:P2, C3:P2, J3 GND - J3 GND:GND, J3:G6, J3:G2, J3:C5, J3:G4, J3:G1, U3 GND_2 - U3 GND_3:GND, M1:GND, R1 P2 - R2 P2:GND, R1:P2, C9:P2, R2:P2, U6:GND, U3:GND_2, U3:GND_1, C1:P2, J1 SHELL_GND__3 - U1 GND:GND, U1:1, M1:AD0, U4 PGND - U5 VSS:GND, J2:GND_3, C6:P2, C10:P2, J3:G3, C13:P2, J2:GND_1, U1:2, C7:P2, J4:P2, U4:GND, U4:PGND, U5:VSS, U3:GND_3, C2:P2, J1:SHELL_GND__3, J1:SHELL_GND__2, J1:SHELL_GND__1, J1:SHELL_GND, J1:GND__1, C5:P2, U3:GND_4, C11:P2, Q1:E, C8:P2, C12:P2, J2:GND_2, J3:G5, J1:GND;

net I2C_SCL = U1:IO9, R4:P2, M1:SCL, U4:SCL;

net CHG_STAT = U5:STAT;

net VBUS_5V = U5:VIN, C9:P1, J1:VBUS__1, J1:VBUS;

net I2C_SDA = M1:SDA, U1:IO8, U4:SDA, R3:P2;

net MAX_INT = U4:~INT, U1:IO10;

net USB_D+ = J1:DP1, U1:IO20, J1:DP2;

net SIM_TX = U1:IO17, U2:UART_TXD;

net SIM_PWRKEY_CTRL = R5:P2, U1:IO12;

net USB_D- = U1:IO19, J1:DN1, J1:DN2;

net GPS_RX = U1:IO16, U3:TXD1;

net VBAT = U6:EN, U6:IN, U5:VBAT, J4:P1, C14:P1, C10:P1, C13:P1, U2:42, U2:1;

net CHG_PROG = U5:PROG;

net GPS_TX = U1:IO15, U3:RXD1;

net SIM_PWRKEY_BASE = R5:P1, Q1:B;

net SIM_RX = U2:UART_RXD, U1:IO18;

net SIM_DATA = U2:SIM_DATA, J3:I/O;

net SIM_CLK = U2:SIM_CLK, J3:CLK;

net SIM_RST = U2:SIM_RST, R6:P2, J3:RST;

net VSIM = U2:VSIM, J3:VCC;

net SIM_DET = U2:SIMPRE;

net SIM_PWRKEY = Q1:C, U2:PWRKEY;

}

4 days

recovering layout selectors and validating remaining blockers...

0:24

Running design review.

Analyzing the PCB layout.

Started: recovering layout selectors and validating remaining blockers

4 days

Stopped due to a problem. Please try again.

J1 DN1 - J1 DN2

J1 SHELL_GND__3 - U1 GND

U1 IO16 - U3 TXD1

J1 DN1 - J1 DN2

U2 UART_RXD - U1 IO18

J1 CC1 - R1 P1

U1 IO9 - M1 SCL

U1 IO8 - M1 SDA

U4 VLED+ - R3 P1

J1 DP1 - J1 DP2

U4 ~INT - U1 IO10

J1 DP1 - J1 DP2

U6 OUT - U1 3V3

U1 IO15 - U3 RXD1

U1 IO12 - R5 P2

U4 VLED+ - R3 P1

J1 SHELL_GND__3 - U1 GND

U2 UART_TXD - U1 IO17

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
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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
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15.7k
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Project Name

Description

Compact 60 mm x 40 mm child safety wearable PCB with ESP32-S3, SIM800L GSM, NEO-6M GPS, MPU-6050, MAX30102, USB-C charging/programming, LiPo battery input, and test-pointed I2C/UART power rails. Target layout is 2-layer with all components on top, bottom ground plane, short direct I2C/UART routing, and GSM placement isolated from GPS and sensor sections.

Properties

Properties describe core aspects of the project.

Pricing & Availability

Distributor	Qty 1
Arrow	$0.61–$0.66
Digi-Key	$1.04–$1.57
LCSC	$1.94
Mouser	$1.70
TME	$0.90
Verical	$1.23–$1.98

Controls

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