Generic ESP32 development board for the development of ESP-WROOM-32 WiFi + Bluetooth microcontrollers. This development board is very economical but it is a little too wide to make assemblies on breadboard.

You can instead opt for the LoLin32 from Wemos as narrow as its little sister the Wemos d1 mini based on ESP8266. It also incorporates a LiPo battery connector ideal for making stand-alone connected objects.

You can also choose this board that incorporates an OLED SSD1306 monochrome screen. The sources of the LoLin32 being Open Source, this manufacturer built its board on the same basis. It is therefore recognized as such in the Arduino IDE.

Finally, for projects that require less space, you can directly buy your ESP32 module to be soldered on a PCB or on a seamless development board (for projects without vibrations or shocks).

ESP-WROOM-32 Module Specifications

Highest Price: CHF 16.99 - 19 June 2021
Lowest Price: CHF 5.60 - 6 October 2020

ESP32 Module: ESP-WROOM-32 from Espressif.
- 240MHz dual core microprocessor equipped with
- 4MB SPI flash memory. Support up to 16MB of flash memory
Connectivity
- WiFi 802.11 b / g / n.
  - Security WEP, WPA / WPA2 PSK / Enterprise.
  - Integrated cryptographic chip supporting AES / SHA2 / Elliptical Curve Cryptography / RSA-4096 algorithms
  - Maximum power for data transfer: 19.5 dBm@11b, 16.5 dBm@11g, 15.5 dBm@11n
  - Sensitivity max. reception: -97 dBm
- Bluetooth 4.0 LE
32 Inputs / Outputs
- 26x Digital I / O (3.3V). All outputs can be PWM
- 18x analog inputs
- 3x UART
- 3x SPI
- 2x I2S
- 2x DAC
- 2x I2C
Sleep Mode Consumption: 5 μA
Integrated sensors
- Hall Effect
- 10x inputs for capacitive touch interface