HydraBus Shield / Breakout board for ESP-WROOM-32 new version 1.1(rev1.0)

hydrabus_1_0_shield_esp_wroom_32_v1_1_rev1_bottom

 

 

 

 

 

This shield can be used with or without HydraBus board, you can even cut HydraBus specific right side (on the line) to have a tiny ESP-WROOM-32 breakout board.

  • New features versus previous version V1.0 Rev1.1:
    • Added LDO (TPS73633DBVR SOT23-5) to convert 5V(VUSB) to a clean VCC (+3.3v) for ESP32 and which can be enabled by an HydraBus Pin or with a JUMPER on J7 (which connect +3.3V from HydraBus to EN of the LDO)
    • Added VCC connector in order to measure ESP32 current/power consumption (if not used to measure current just add a JUMPER on VCC to power the ESP32)
    • Added J6 connector to have access to ESP32 SPI FLASH IOs (now all pins are available)
  • This shield can be used only on bottom of HydraBus board (in order to use other shields on top of HydraBus)
  • The HydraBus board is a small (60mm x 37mm) and low cost, multi-tool extensible board with STM32F405 Cortex M4F 32bits MCU @168MHz with a fully open source firmware hydrafw and full online documentation hydrafw wiki
  • The ESP-WROOM-32 is a low-power 32-bit 240 MHz dual core MCU Wi- Fi+BLE combo module that highly integrates TCP/IP network stacks, 12- bit ADC and HSPI/SDIO/UART/PWM/I2C/I2S interfaces. See ESP32 Overview, ESP-WROOM-32 link/info, Espressif Products Overview including ESP-WROOM-32 PDF
  • Design based on official esp_wroom_32_datasheet_en.pdf (August 8, 2016)

OSH Park Link: https://oshpark.com/shared_projects/dgKJqznH

 

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