OLIMEX ESP32-S3 LiPo Open Source Hardware Board Dev Kit User Manual

: June 21, 2024
: OLIMEX

Table of Contents

Introduction to ESP32-S3-DevKit-LiPo
HARDWARE
SOFTWARE
Revision History
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

**OLIMEX ESP32-S3 LiPo Open Source Hardware Board Dev Kit User Manual

**

Introduction to ESP32-S3-DevKit-LiPo

ESP32-S3 is a dual-core XTensa LX7 MCU, capable of running at 240 MHz. Apart from its 512 KB of internal SRAM, it also comes with integrated 2.4 GHz, 802.11 b/g/n Wi-Fi and Bluetooth 5 (LE) connectivity that provides long-range support. It has 45 programmable GPIOs and supports a rich set of peripherals. ESP32-S3 supports larger, high-speed octal SPI flash, and PSRAM with configurable data and instruction cache.

ESP32-S3-DevKit-LiPo board is development board with ESP32-S3 and these features:

ESP32-S3-WROOM-1-N8R8 8MB RAM 8 MB Flash
Green Status LED
Yellow Charge LED
UEXT connector (pUEXT 1.0 mm step connector)
USB-C power supply and USB-Serial programmer
USB-C OTG JTAG/Serial connector
LiPo charger
LiPo battery connector
External power sense
Battery measurement
Automatic power supply switch between USB and LiPo
RESET button
USER button
Dimensions 56×28 mm

Order codes for ESP32-S3-DevKit-Lipo and accessories:

ESP32-S3-DevKit-LiPo ESP32-S3 development board with USB JTAG/Debugger and Lipo charger
USB-CABLE-A-TO-C-1M USB-C power and programming cable
LiPo batteries
UEXT sensors and modules

HARDWARE

ESP32-S3-DevKit-LiPo layout:

Product Layout

ESP32-S3-DevKit-LiPo GPIOs:

GPIOs

POWER SUPPLY:

This board can be powered by:

+5V: EXT1.pin 21 can be input or output
USB-UART: USB-C connector
USB-OTG1: USB-C connector
LiPo battery

ESP32-S3-DevKit-Lipo schematics:

ESP32-S3-DevKit-LiPo latest schematic is on GitHub

UEXT connector:

UEXT connector stands for Universal EXTension connector and contain +3.3V, GND, I2C, SPI, UART signals.

UEXT connector can be in different shapes.

The original UEXT connector is 0.1” 2.54mm step boxed plastic connector. All signals are with 3.3V levels.

UEXT Connector

note it share same pins with EXT1 and EXT2

UEXT Connector

As the boards become smaller and smaller some smaller packages were introduced too beside the original UEXT connector

mUEXT is 1.27 mm step boxed header connector which is with same layout as UEXT
pUEXT is 1.0 mm single row connector (this is the connector used in RP2040-PICO30)

Olimex has developed number of MODULES with this connector. There are temperature, humidity, pressure, magnetic field, light sensors. Modules with LCDs, LED matrix, Relays, Bluetooth, Zigbee, WiFi, GSM, GPS, RFID, RTC, EKG, sensors and etc.

pUEXT signals:

pUEXT signals