ESP32 ESP-WROOM-32

The ESP-WROOM-32 is a WiFi and Bluetooth module from Espressif with ESP32. In addition to WiFi it offers Bluetooth and Bluetooth LE as well as more IO pins and improved analog inputs than the ESP8266. The module is soldered in and has no programming adapter, so it needs a USB-to-serial converter. Because no such adapter runs on the module, it is also suitable for energy-optimised applications in deep sleep.

Recommended alternative, ready-made as a board with USB: ESP32MiniKit Wemos

Recommended Accessories:

• ESP32 Adapter Module
• Mini USB UART FTDI Programmer 3.3/5V USB Serial

Features:

• Solder pads for your own PCB or the adapter module
• The ESP32 works at 3.3 V, set the programming adapter to 3.3 V
• According to Espressif the external supply must deliver at least 0.5 A
• Arduino IDE: enter the URL https://espressif.github.io/arduino-esp32/package_esp32_index.json under Preferences, install «esp32» in the Boards Manager, select board «ESP32 Dev Module»
• Supports capacitive touch sensors

Application Examples:

• Custom PCBs with WiFi and Bluetooth
• Sensor nodes with deep sleep
• Self-built IoT devices

Documentation:

• ESP32-WROOM-32 datasheet (Espressif)
• Installing ESP32 in the Arduino IDE (Espressif)
• ESP32 pinout and GPIO (Random Nerd Tutorials)

Technical Data:

• Module: ESP-WROOM-32 (Espressif)
• Operating voltage: 3.3 V
• Processor: Dual-core Tensilica LX6
• Clock frequency: up to 240 MHz
• SRAM: 520 kB
• Flash: 4 MB
• WiFi: 802.11 b/g/n
• Bluetooth: Dual mode (Classic and BLE)
• Dimensions: 25.5 × 18 × 3.1 mm
• Weight: 2 g

Scope of Delivery:

• 1× ESP32 ESP-WROOM-32