Understanding Schematic Design

nimaear

what is happening here?

nimaear

@help why do we need multiple decoupling caps of different values on the ESP32 power pins?

Sign up to send

Files

Schematic

Layout

Preview

J3

PP5V0

INT_ADC_DRDY

PG_PP5V0

USBC2.0_D_N

SPI_MISO

I2C_SDA

PG_PP5V0

PP3V3

SPI_SCK

USBC2.0_D_P

I2C_SCL

PP3V3_SPI

LOAD_CELL_A1_P

I2C_SCL

PP3V3

PP12V0

SPI_SCK

PP5V0

GPIO_SW1

LOAD_CELL_A1_P

I2C_SCL

VOS

INT_ADC_DRDY

PP5V0

PP3V3

LOAD_CELL_AI_N

PP5V0

GPIO_SW2

GPIO_SW1

I2C_SDA

GPIO_SW2

SPI_MISO

PP5V0

PP12V0

SPI_MOSI

LOAD_CELL_AI_N

I2C_SDA

I2C_SCL

SPI_CS

VOS

PP3V3

SPI_CS

SPI_MOSI

R3

Resistance

10kΩ

C7

Capacitance

1uF

J4

C13

Capacitance

1uF

C23

Capacitance

.1uF

R1

Resistance

10kΩ

C9

Capacitance

1uF

C18

Capacitance

1uF

C20

Capacitance

1uF

H4

J5

H1

C2

Manufacturer Part Number

OPT

C10

Capacitance

1uF

C3

Capacitance

1uF

C25

Capacitance

22uF

C26

Capacitance

4.7µF

C15

Capacitance

1uF

R4

Resistance

100 Ω

H2

C5

Capacitance

1uF

R5

Resistance

10kΩ

C8

Capacitance

13pF

C28

Capacitance

.1uF

R2

Resistance

100 Ω

C12

Capacitance

1uF

C11

Capacitance

1uF

H3

C6

Capacitance

1.2pF

C24

Capacitance

1uF

C31

Capacitance

.1uF

C4

Capacitance

13pF

Y1

R7

Resistance

100kΩ

L1

Inductance

2.2nH

R8

Resistance

953kΩ

IC1

U2

C22

Capacitance

10uF

C21

Capacitance

10uF

C17

Capacitance

10uF

R6

Resistance

180kΩ

C30

Capacitance

10uF

C1

Capacitance

10uF

L2

Inductance

2.2nH

C19

Capacitance

10uF

MCU_TXD

J1

U1

End of Life

C29

Capacitance

10uF

U3

Manufacturer Part Number

TPS62130ARGTR

Y2

J2

L4

C27

Capacitance

10uF

MCU_RXD

L3

Inductance

2.2uH

MCU_BOOT

ESPRSSO32 Smart Scale AI Auto Layout [Example]