uinika/UINIO-MCU-ESP32S313the Evaluation Board base on ESP32-S3 with Xtensa® Dual-Core 32-bit LX7.
UINIO MCU ESP32S3 is an open-source printed circuit board by uinika, from the uinika/UINIO-MCU-ESP32S3 repository on GitHub. It is a 2-layer board of 87.4 × 20.3 mm with 48 parts on 75 nets, routed with 962 tracks and 222 vias.
It is built around the ESP32-S3, CH343P and LMBT3904DW1T1G, with the ME6211C33M5G-N, RS2227XUTQK10 and AN9520-245 among its other parts. Its parts include 18 capacitors, 9 resistors, 7 ICs, 4 connectors and 2 switches. It belongs with the ESP32 and STM32 boards of this library.
UINIO-MCU-ESP32S3 是一款采用 上海乐鑫科技 ESP32-S3 微控制器的核心板电路设计，该微控制器基于 Xtensa® dual-core 32-bit LX7 架构，拥有 45 个 GPIO 接口，主频高达 240MHz，同时具备 2.4GHz Wi-Fi 与 Bluetooth5 两种物联网接入能力。片上载有 384KB 容量的 ROM，以及 512KB 容量的 SRAM 和 16KB 容量的 RTCSRAM。
ME6211C33M5G 提供 3.3V 电源；L1 的串联电感替换为 0R 电阻；1mm 沉头螺丝开孔，可以用于固定主板和外壳；IO9/BOOT 的电平状态，否则 ESP32-S3 将会进入下载模式；IO8 引脚默认进行了上拉，因为如果其为低电平状态，则不能使用串口进行固件下载；GPIO11 默认为 SPI 接口 Flash 存储器的 VDD 引脚，需要配置之后才能作为 GPIO 使用；W25Q128JVSSIQ 型 Flash 存储器，其 VDD 已经连接至 3.3V 电源，使用时无需再行配置，Flash 采用普通的两线制 SPI 总线进行通信；IO12、IO13 在 QIO 模式下被复用为 SPI 信号线 SPIHD 和 SPIWP，本开发板采用两线制 SPI 的 DIO 模式，使用时需要注意将 Flash 配置为 DIO 模式；UinIO.com 电子技术实验室 为 UINIO-MCU-ESP32S3 开源项目提供有如下一系列技术参考资料：
| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 0.1uF | Capacitor_SMD:C_0402_1005Metric | C3, C7, C11, C12, C13, C14, C18, C19 |
| 6 | 10K | Resistor_SMD:R_0402_1005Metric | R4, R5, R6, R7, R8, R9 |
| 6 | 1uF | Capacitor_SMD:C_0402_1005Metric | C1, C2, C4, C9, C17, C20 |
| 4 | Hole-1mm | Uinio:Hole-1mm | HOLE**, HOLE**, HOLE**, HOLE** |
| 2 | 15pF | Capacitor_SMD:C_0402_1005Metric | C15, C16 |
| 2 | 5.1K | Resistor_SMD:R_0402_1005Metric | R1, R2 |
| 2 | Conn_01x27_Pin | Connector_PinHeader_2.54mm:PinHeader_1x27_P2.54mm_Vertical | J2, J4 |
| 1 | 10nF | Capacitor_SMD:C_0402_1005Metric | C10 |
| 1 | 10uF | Capacitor_SMD:C_0402_1005Metric | C6 |
| 1 | 2K | Resistor_SMD:R_0402_1005Metric | R3 |
| 1 | 40MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | AN9520-245 | Uinio:ANT-SMD_L9.5-W2.1 | L1 |
| 1 | CH343P | Uinio:TQFN-16_L3.0-W3.0-P0.50-BL-EP1.7 | U6 |
| 1 | Conn_01x03_Pin | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J1 |
| 1 | Conn_01x04_Pin | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J3 |
| 1 | ESP-PSRAM64H | Uinio:SOP-8_L4.9-W3.9-P1.27-LS6.0-BL | U3 |
| 1 | ESP32-S3 | Uinio:ESP32-S3 | U5 |
| 1 | LED_Red | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | LMBT3904DW1T1G | Uinio:SOT-363_L2.0-W1.3-P0.65-LS2.1-TL | U7 |
| 1 | ME6211C33M5G-N | Uinio:SOT-23-5_L3.0-W1.7-P0.95-LS2.8-BR | U1 |
| 1 | RS2227XUTQK10 | Uinio:WQFN-10_L1.8-W1.4-P0.40-BL | U4 |
| 1 | USB_Type_C_16Pin | Uinio:USB-C-SMD_TYPEC-304J-BCP16 | USB1 |
| 1 | W25Q128JVSSIQ | Uinio:SOIC-8_L5.3-W5.3-P1.27-LS8.0-BL | U2 |
| 1 | 启动选择 | Uinio:KEY-SMD_4P-L4.2-W3.4-P2.15-LS4.7 | SW2 |
| 1 | 复位 | Uinio:KEY-SMD_4P-L4.2-W3.4-P2.15-LS4.7 | SW1 |
It measures 87.4 × 20.3 mm and has 2 copper layers, 1.6 mm thick.
48 parts, built around the ESP32-S3, CH343P, LMBT3904DW1T1G and ME6211C33M5G-N. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the uinika/UINIO-MCU-ESP32S3 repository on GitHub, at the commit this page was made from: the board is UINIO-MCU-ESP32S3.kicad_pcb and its schematic UINIO-MCU-ESP32S3.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask uinika before reusing the design.
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