# \[Example\] ESP32 Reference Design

## Description

An example development and reference design for the ESP32 microcontroller\.

## Project Details

- **Owner:** tyroden
- **Created:** 11/5/2021
- **Last Updated:** 4/21/2022
- **Visibility:** Public

## Key Components

### \+3V3 — Power Symbol

**Pins:**
- P1

### \+3V3 — Power Symbol

**Pins:**
- P1

### \+3V3 — Power Symbol

**Pins:**
- P1

### \+3V3 — Power Symbol

**Pins:**
- P1

### \+3V3 — Power Symbol

**Pins:**
- P1

### \+3V3 — Power Symbol

**Pins:**
- P1

### \+3V3 — Power Symbol

**Pins:**
- P1

### \+3V3 — Power Symbol

**Pins:**
- P1

### \+3V3 — Power Symbol

**Pins:**
- P1

### \+3V3 — Power Symbol

**Pins:**
- P1

### \+3V3 — Power Symbol

**Pins:**
- P1

### \+3V3 — Power Symbol

**Pins:**
- P1

### \+3V3 — Power Symbol

**Pins:**
- P1

### \+3V3 — Power Symbol

**Pins:**
- P1

### \+3V3 — Power Symbol

**Pins:**
- P1

### \+3V3 — Power Symbol

**Pins:**
- P1

### \+3V3 — Power Symbol

**Pins:**
- P1

### \+3V3 — Power Symbol

**Pins:**
- P1

### \+3V3 — Power Symbol

**Pins:**
- P1

### D1 — [Schottky Diode](https://flux.ai/lwcassid/schottky-diode~zf.md)

- Emission Coefficient: 2\.03
- Saturation Current: 3\.15e\-7A
- Series Resistance: 2\.8Ω
- Breakdown Voltage: 70V

**Pins:**
- ANODE
- CATHODE

### TP1 — [Test Point](https://flux.ai/ramprakashvishnoi8/test-point~w1.md)

**Pins:**
- P1

### TP2 — [Test Point](https://flux.ai/ramprakashvishnoi8/test-point~w1.md)

**Pins:**
- P1

### TP3 — [Test Point](https://flux.ai/ramprakashvishnoi8/test-point~w1.md)

**Pins:**
- P1

### TP4 — [Test Point](https://flux.ai/ramprakashvishnoi8/test-point~w1.md)

**Pins:**
- P1

### TP5 — [Test Point](https://flux.ai/ramprakashvishnoi8/test-point~w1.md)

**Pins:**
- P1

### TP6 — [Test Point](https://flux.ai/ramprakashvishnoi8/test-point~w1.md)

**Pins:**
- P1

### U2 — MCP23017\-E/SO

- Manufacturer Part Number: MCP23017\-E/SO
- Manufacturer Name: Microchip Technology
- Datasheet URL: http://www\.microchip\.com/mymicrochip/filehandler\.aspx?ddocname=en023709
- Part Type: Integrated Circuit
- Package or Case Code: 28\-SOIC

**Pins:**
- \~RESET
- A0
- A1
- A2
- GPA0
- GPA1
- GPA2
- GPA3
- GPA4
- GPA5
- GPA6
- GPA7
- GPB0
- GPB1
- GPB2
- GPB3
- GPB4
- GPB5
- GPB6
- GPB7
- INTA
- INTB
- SCK
- SDA
- VDD
- VSS

### U3 — TPS564201DDCR

- Manufacturer Part Number: TPS564201DDCR
- Datasheet URL: http://www\.ti\.com/general/docs/suppproductinfo\.tsp?distId=10&gotoUrl=http%3A%2F%2Fwww\.ti\.com%2Flit%2Fgpn%2Ftps564201
- Manufacturer Name: Texas Instruments
- Package or Case Code: TSOT\-23\-6
- Part Type: Integrated Circuit

**Pins:**
- EN
- GND
- SW
- VBST
- VFB
- VIN

### U4 — USB4110\-GF\-A\_REVB

- Package or Case Code: Surface Mount, Right Angle
- Manufacturer Part Number: USB4110\-GF\-A
- Manufacturer Name: GCT
- Datasheet URL: https://gct\.co/files/drawings/usb4110\.pdf
- Part Type: Connector 

**Pins:**
- CC1
- CC2
- DN1
- DN2
- DP1
- DP2
- GND
- GND
- GND
- GND
- GND
- GND
- SBU1
- SBU2
- VBUS
- VBUS

### U5 — ADS1115IDGSR

- Datasheet URL: https://www\.ti\.com/general/docs/suppproductinfo\.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww\.ti\.com%2Flit%2Fgpn%2Fads1113
- Part Type: Integrated Circuit
- Manufacturer Name: Texas Instruments
- Package or Case Code: 10\-VSSOP
- Manufacturer Part Number: ADS1115IDGSR

**Pins:**
- ADDR
- AIN0
- AIN1
- AIN2
- AIN3
- ALERT/RDY
- GND
- SCL
- SDA
- VDD

### VIN — Power Symbol

**Pins:**
- P1

### VIN — Power Symbol

**Pins:**
- P1

### VIN — Power Symbol

**Pins:**
- P1

### VUSB — Power Symbol

**Pins:**
- P1

### VUSB — Power Symbol

**Pins:**
- P1

### VUSB — Power Symbol

**Pins:**
- P1

*The full schematic, PCB layout, bill of materials, and interactive design are available at [https://flux\.ai/tyroden/example\-esp32\-reference\-design\~7j](https://flux.ai/tyroden/example-esp32-reference-design~7j).*

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*Generated from [https://flux\.ai/tyroden/example\-esp32\-reference\-design\~7j](https://flux.ai/tyroden/example-esp32-reference-design~7j)*