ESP32

Is an Electronic board perfect for DIY project developed by Espressif

Description

• Successor of the ESP8266
• Different boards: check the module list
• Different versions
  • WROOM
  • WROVER
    • Datasheet ESP32-WROVER-(I)E
    • ESP32-WROVER-E: Internal network antenna
    • ESP32-WROVER-IE: External network antenna
      • N16R8 with 16MB SPI flash, 8MB SPI PSRAM
      • N4R8 with 4MB SPI flash
  • ESP32-D0WDQ6
  • 8 MB SPI PSRAM

Usage

• Vcc = 3.3v
• Programmable via ESP-PROG
  • Vcc = 3.3v or 5v
  • Imax = 260mA - see this
  • Reference guide from Expressif
  • See ESP32-With-ESP-PROG-Demo - GitHub

Arduino environment

This board can run Arduino code - see the online documentation

Setup

1. Download the Arduino IDE
2. In the IDE, Preferences → Additional Boards, add the Arduino core for the ESP32: https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json
3. Plug-in the board and install the USB to UART drivers
4. In the IDE, select Tools → Board → ESP32 → ESP32 Dev Module
5. In the IDE, select Tools → Port → the proper COM module
6. Load an example, like WifiScan

Libraries

HTTPS POST

Use the WifiClientSecure library - Link: ESP32 HTTPS Requests (Arduino IDE) - Random Nerd Tutorials

Ressources

• Random Nerd Tutorials - Getting Started with the ESP32 Development Board
• Random Nerd Tutorials - Installing the ESP32 Board in Arduino IDE including Troubleshooting step

Hardware

Datasheet

See esp32_datasheet_en.pdf

Pinout

Mine: ESP32-WROOM-32D See also ESP32 Pinout Reference - Random Nerd Tutorials