ESP32-WROVER-KIT Devkit Supports Espressif ESP32 Modules, Includes a 3.2″ LCD Display

Orange Pi Development Boards

Yesterday Olimex wrote a blog post informing us that ESP32-CoreBoard was back in stock, one the many ESP32 boards launched late this year, but still hard to get. The company also mentioned they’d have limited quantity of the new ESP32-WROVER with JTAG and LCD display together with the picture below.

esp32-wrover-esp32-lcd-kit

ESP32 is quite more powerful than ESP8266 so it makes sense to have an ESP32 development kit with an LCD display. A quick DuckDuckGo search led me to ESP-WROVER-KIT Getting Started Guide, where we can find more details including the overall specifications:

  • Compatible with ESP-WROOM-32 and ESP32-WROVER modules based on ESP32 dual core Tensilica L108 processor clocked at up to 240 MHz with WiFi and Bluetooth LE connectivity
  • Storage – Micro SD slot
  • Display – 3.2″ LCD display connected via SPI
  • USB – 1x micro USB port
  • Expansion
    • 8-pin UART header
    • 6-pin SPI header
    • 48-pin header for I/Os and camera interface (standard OV7670 camera module supported)
  • Debugging – JTAG through USB interface (FTDI FT2232HL) or 14-pin header
  • Misc – CTS/RTS jumper; power selection (EXT or USB); RGB LED; boot & reset (EN) buttons
  • Power Supply – 5V DC input; 5V to 3.3V LDO chip
  • Dimensions – 85.2 x 79.0 mm
ESP-WROVER-KIT Block Diagram - Click to Enlarge
ESP-WROVER-KIT Block Diagram – Click to Enlarge

The rest of the getting started guide explains how to configure jumpers to set the power source, serial flow control, and JTAG. It also shows how to access the serial console with a typical 115200 8N1 connection, as well as compile and load a simple hello program with ESP-IDF SDK in Windows and Linux.

Image Source: HackerBoads
Image Source: HackerBoards

Beside the development kit itself, I also discovered the new ESP32-WROVER module with the same feature as ESP-WROOM-32 plus an extra 32Mbit pSRAM chip and an external antenna connector.

esp32-wrover
ESP32-WROVER Photo via ESP32 Twitter Account

The kit should be available in January based on Olimex’ blog post, but we don’t have any pricing info yet.

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Miha
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Miha

The one with PSRam probably won’t be available in January, because there is a HW bug when using the external PSRam (maybe they found a sw workaround for it, but this would probably mean that there is some penalty accessing the external RAM).
The bug will be fixed in next silicon revision together with all other HW bugs.

Benjamin HENRION
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One could have replaced the FT2232 by a cheap STM32 and load BlackMagicProbe (BMP) on it.

FT
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ESP32-CoreBoard is priced at 17.00 EUR. See https://www.olimex.com/Products/IoT/ESP32-CoreBoard/