HiLetgo 3pcs ESP32 Mini ESP-WROOM-32 Development Board WLAN WiFi Bluetooth IoT Development Board

Amazon.com Price: $21.39 (as of 09/07/2023 04:22 PST- Details)

ESP32 Mini development board, everything needed to program the ESP32 module, ESP32/32S WIFI Development Bluetooth ESP8266 Module CP2104 for Arduino IDE.
Power supply voltage: DC 5V (USB)
Input/Output voltage: DC 3.3V

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Description

Features:
The chipset that incorporates is the ESP32-WROOM-32 and a chipset for the CP2104 serial port with 4 megs of space for development.
Power supply voltage (USB) 5V DC
Micro USB connection; Compatible with Arduino
Input/Output voltage 3.3V DC
Operating current min. 500mA
RAM 512kB
I/O Pins 34

Package Including:
3* ESP32 mini ESP-WROOM-32 Development Board

ESP32 Mini development board, everything needed to program the ESP32 module, ESP32/32S WIFI Development Bluetooth ESP8266 Module CP2104 for Arduino IDE.
Power supply voltage: DC 5V (USB)
Input/Output voltage: DC 3.3V
I/O Pins: 34
SRAM: 520KB External Flash

Additional information

Brand