ESP8266-DevKitS Guide Datasheet by Espressif Systems

www.espressif.com
ESP8266-DevKitS
User Guide
Version 1.0
Espressif Systems
Copyright © 2020
Im.
About This Guide
This user guide provides information on ESP8266-DevKitS-development board.
Release Notes
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Certification
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Date
Version
Release notes
2020.02
V1.0
Initial release.
www.espressif.com
Tables of Contents
1. Overview 1 ................................................................................................................................
2. Functional Description 2 ..........................................................................................................
3. How to Flash a Board 4 ............................................................................................................
3.1. Hardware Preparation!4"................................................................................................................
3.2. Hardware Setup!4".........................................................................................................................
3.3. Software Setup!4"..........................................................................................................................
4. Board Dimensions 5 .................................................................................................................
5. Hardware Reference 6 ..............................................................................................................
5.1. Block Diagram!6"............................................................................................................................
5.2. Power Supply Options!6"...............................................................................................................
5.3. Header Blocks!6"............................................................................................................................
A. Appendix—Learning Resources 8 ...........................................................................................
A.1. Must-Read Documents!8"..............................................................................................................
A.2. Must-Have Resources!9................................................................................................................
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1. Overview
ESP8266-DevKitS is Espressif’s flashing board designed specifically for ESP8266. It can be
used to flash an ESP8266 module without soldering the module to the power supply and
signal lines. With a module mounted, ESP8266-DevKitS can also be used as a mini
development board like ESP8266-DevKitC.
ESP8266-DevKitS supports the following ESP8266 modules:
- ESP-WROOM-02
- ESP-WROOM-02D
- ESP-WROOM-02U
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2. Functional Description
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Figure 2-1. ESP8266-DevKitS
This chapter introduces key components, interfaces and controls of ESP8266-DevKitS
development board:
•Spring Pins
Connect and fix the module. These spring pins fit castellated holes on the module.
•2.54 mm Female Headers
Connect to jumper wires and other development boards. For description of female
headers, please refer to 5.3 Header Blocks.
•USB-to-UART Bridge
A single chip USB-UART bridge provides up to 3 Mbps transfers rates.!
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•LDO
5V-to-3.3V Low dropout voltage regulator (LDO).
•Boot Button
Download button. Holding down the Boot button and pressing the EN button initiates
the firmware download mode. Then users can download firmware through the serial
port.
•Micro USB Port/Micro USB Connector
USB interface. Power supply for the board and the communication interface between
a computer and the board.
•EN Button
Reset button. Pressing this button resets the system.
•Power On LED
Turns on when the USB or power supply is connected to the board.!
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ESP8266 Quick Start Guide
!
3. How to Flash a Board
3. How to Flash a Board
3.1. Hardware Preparation
•1 x ESP8266 module of your choice
•1 x USB 2.0 cable (Standard-A to Micro-B)
•1 x PC loaded with Windows, Linux or Mac OS
3.2. Hardware Setup
Please mount a module of your choice onto your ESP8266-DevKitS according to the
following steps:
•Gently put your module on the ESP8266-DevKitS board. Make sure that castellated
holes on your module are aligned with spring pins on the board.
•Press your module down into the board until it clicks.
•Check whether all spring pins are inserted into castellated holes. If there are some
misaligned spring pins, place them into castellated holes with tweezers.
3.3. Software Setup
For step-by-step introductions, please refer to ESP8266 Quick Start Guide.
📖 Note:
1. To flash binary files, the ESP32 chip should be set to UART boot mode. This can be done either by the
flash tool automatically, or by holding down the Boot button and tapping the EN button.
2. After binary files have been flashed, please reset or power up your ESP32 module again to run the
flashed application (this step is executed automatically by the flash tool by default).
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4. Board Dimensions
4. Board Dimensions
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Figure 4-1. Board Dimensions
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5. Hardware Reference
5. Hardware Reference
5.1. Block Diagram
Figure 5-1. ESP8266-DevKitS Block Diagram
5.2. Power Supply Options
There are three mutually exclusive ways to provide power to the board:
•Micro USB port, default power supply
•5V and GND header pins
•3V3 and GND header pins
It is advised to use the first option: micro USB port.
5.3. Header Blocks
Table 5-1. Header Block
Location
Label
Signal
L1
G
GND
L2
3V3
VDD 3V3
L3
3V3
VDD 3V3
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!
5. Hardware Reference
L4
EN
CHIP_EN
L5
G
GND
L6
14
GPIO14
L7
12
GPIO12
L8
13
GPIO13
L9
15
GPIO15
L10
2
GPIO2
L11
0
GPIO0
L12
G
GND
L13
5V
External 5V
L14
G
GND
L15
G
GND
R1
G
GND
R2
16
GPIO16
R3
G
GND
R4
TX
U0TXD
R5
RX
U0RXD
R6
G
GND
R7
4
GPIO4
R8
RST
EXT_RSTB
R9
5
GPIO5
R10
ADC
To TOUT after a voltage divider
R11
G
GND
R12
G
GND
R13
G
GND
R14
G
GND
R15
G
GND
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ESPSZGG-DevK/ts Reference Design ESP8266 Quick Start Guide ESP8266 SDK Getting Started Guide ESP-WROO/VI-OQ Datasneet ESP- WROO/VI-OZD/ESP— WROO/VI-OZU Datasheet ESP-WROO/VI-OQ Reference Design ESP- WROO/VI-OZD/ESP— WROO/VI-OZU Reference Design ESP-WROO/VI-OQ PCB Desiqn and Module P/acement Guide
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Appendix A
A. Appendix—Learning
Resources
A.1. Must-Read Documents
•ESP8266-DevKitS Reference Design
Description: This zip package include ESP8266-DevKitS schematics, PCB layout,
gerber and BOM files, and spring design files.
•ESP8266 Quick Start Guide
Description: This document is a quick user guide to getting started with ESP8266. It
includes an introduction to the ESP-LAUNCHER, how to download firmware on to the
board and run it, how to compile the AT application, structure and the debugging
method of RTOS SDK. Basic documentation and other related resources for the
ESP8266 are also provided.
•ESP8266 SDK Getting Started Guide
Description: This document takes ESP-LAUNCHER and ESP-WROOM-02 as examples
to introduce how to use ESP8266 SDK. The contents include preparations before
compilation, SDK compilation and firmware download.
•ESP-WROOM-02 Datasheet
Description: ESP-WROOM-02 is a SMD module that integrates ESP8266EX. The
module has been adjusted to get the best RF performance.
•ESP-WROOM-02D/ESP-WROOM-02U Datasheet
Description: ESP-WROOM-02D and ESP-WROOM-02U are ESP8266EX-based
modules developed by Espressif. Compared with ESP-WROOM-02, the RF
performance of ESP-WROOM-02D and ESP-WROOM-02U are optimized.
•ESP-WROOM-02 Reference Design
Description: This zip package includes ESP-WROOM-02 hardware downloading
resources, manufacturing specifications, BOM and schematics.
•ESP-WROOM-02D/ESP-WROOM-02U Reference Design
Description: This zip package includes ESP-WROOM-02D and ESP-WROOM-02U
module reference design resources, including schematics, PCB layout, gerber files and
BOM lists. #
•ESP-WROOM-02 PCB Design and Module Placement Guide
Description: The ESP-WROOM-02 module is designed to be soldered to a host PCB.
This document compares six different placements of the antenna on a host board and
provides notes on designing PCB.
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Appendix A
•ESP8266 Hardware Resources
Description: This zip package includes manufacturing specifications of the ESP8266
board and the modules, manufacturing BOM and schematics.
•ESP8266 AT Command Examples
Description: This document introduces some specific examples of using Espressif AT
commands, including single connection as a TCP Client, UDP transmission and
transparent transmission, and multiple connection as a TCP server.
•ESP8266 AT Instruction Set
Description: This document provides lists of AT commands based on
ESP8266_NONOS_SDK, including user-defined AT commands, basic AT commands,
Wi-Fi AT commands and TCP/IP-related AT commands. It also introduces the
downloading of AT firmware into flash.
•TCP/UDP UART Passthrough Test Demonstration
Description: This guide is intended to help users run a TCP & UDP passthrough test on
the ESP8266 IoT platform.
•FAQ
A.2. Must-Have Resources
•ESP8266 SDKs
Description: This website page provides links to the latest version of ESP8266 SDK and
the older ones.
•ESP8266 Tools
Description: This website page provides links to the ESP8266 flash download tools and
ESP8266 performance evaluation tools.
•ESP8266 App
•ESP8266 Certification and Test Guide
•ESP8266 BBS
•ESP8266 Resources
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Disclaimer and Copyright Notice
Information in this document, including URL references, is subject to change without
notice.
THIS DOCUMENT IS PROVIDED AS IS WITH NO WARRANTIES WHATSOEVER,
INCLUDING ANY WARRANTY OF MERCHANTABILITY, NON-INFRINGEMENT, FITNESS
FOR ANY PARTICULAR PURPOSE, OR ANY WARRANTY OTHERWISE ARISING OUT
OF ANY PROPOSAL, SPECIFICATION OR SAMPLE.
All liability, including liability for infringement of any proprietary rights, relating to use of
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a registered trademark of Bluetooth SIG.
All trade names, trademarks and registered trademarks mentioned in this document are
property of their respective owners, and are hereby acknowledged.
Copyright © 2020 Espressif Inc. All rights reserved.
Espressif IoT Team"
www.espressif.com