Espressif Systems ESP-WROOM-32 Manuals

Manuals and User Guides for Espressif Systems ESP-WROOM-32. We have 1 Espressif Systems ESP-WROOM-32 manual available for free PDF download: Manual

Espressif Systems ESP-WROOM-32 Manual

Espressif Systems ESP-WROOM-32 Manual (29 pages)

Brand: Espressif Systems | Category: Microcontrollers | Size: 11 MB

Table of Contents

Table of Contents
3
Overview
7
Basic Protocols
7
Wi-Fi
7
Bluetooth
7
Application
8
Function Block Diagram
9
Pin Definitions
10
Pin Layout
10
Pin Description
10
Strapping Pins
12
Schematics and PCB Layout Design
14
Schematics
14
ESP32 Schematics
14
Power Supply
15
Digital Power Supply
15
Analog Power Supply
15
Power-On Sequence and Reset
16
Power-On Sequence
16
Reset
16
Flash
16
Crystal Oscillator
17
External Clock Source (Compulsory)
17
ESP32 Flash
17
ESP32 Crystal Oscillator
17
RTC (Optional)
18
ESP32 Crystal Oscillator (RTC)
18
Esp32 Rf
18
Sensor External Sampling Capacitor
19
External Capacitor
19
PCB Layout
19
Standalone ESP32 Module
20
General Principles of PCB Layout
20
Power Supply
20
Crystal Oscillator
20
ESP32 Crystal Oscillator
21
ESP32 as a Slave Device
22
Typical Layout Problems and Solutions
22
Q: the Current Ripple Is Not Large, but the Tx Performance of RF Is Rather Poor
22
Q: the Power Ripple Is Small, but RF Tx Performance Is Poor
23
Q: When ESP32 Sends Data Packages, the Power Value Is Much Higher or Lower than the Target Power Value, and the EVM Is Relatively Poor
23
Q: Tx Performance Is Not Bad, but the Rx Sensitivity Is Low
23
Hardware Development
24
ESP-WROOM-32 Module
24
Overview
24
Pin Definition
25
Notes
26
ESP32-Devkitc
27
Overview
27
Schematics
28
Power Schematics
28
USB-UART Schematics
28
Power Schematics of ESP32-Devkitc
28
Applications
29
UART to Wi-Fi Smart Device
29
ESP32-Lyra Smart Audio Platform
29

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