Metro ESP-32 image

Metro ESP-32

Development Board

Code name: Metro
ESP32

Metro ESP-32 is a development board based on the ESP32 microcontroller using XTENSA architecture.

This board features a maximum CPU frequency of 240 MHz and 4MB flash memory.

About Metro ESP-32

Metro-style ESP32 board with familiar layout - great for Arduino IDE users moving to dual-core IoT.

Metro ESP-32 Technical Specifications

🛰️ Connectivity

WiFi: 802.11 b/g/n (2.4 GHz)
Bluetooth: 4.2
BLE: 4.2

🧠 Microcontroller

Model: esp32
Clock Speed: 240 MHz
Flash Size: 4MB
Architecture: xtensa

✨ Features

  • 40 digital IO pins
  • 16 external interrupt pins
  • 16 analog input pins
  • 8 PWM pins

Metro ESP-32 Pin Mappings

Below you can find the Metro ESP-32 pinout. This development board provides 40 digital IO pins, out of which 16 can be used as external interrupt pins, 16 as analog input pins and 8 pins have Pulse-Width Modulation (PWM).

PinAnalogTouchPWMOther
0KEY_BUILTIN
2PWMLED_BUILTIN
5PWMSS
12PWMADR
18PWMSCK
19PWMMISO
21PWMSDA
22PWMSCL
23PWMMOSI
Analog Analog input pins
Touch Touch pins
PWM Pulse-Width Modulation
RX / TX Receive/Transmit
LED_BUILTIN Built-in LED
Function Other functions

Default Tools for Metro ESP-32

Bootloader toolesptool_py
Uploader toolesptool_py
Network uploader toolesp_ota
Bootloader address0x1000
Flash modedio
Boot modedio
Maximum upload size
1280 Kb
(1310720 B)
Maximum data size
320 Kb
(327680 B)

The Metro ESP-32 development board by default uses esptool_py uploader tool, network uploader tool for Over-the-air (OTA) uploads and esptool_py bootloader tool. The bootloader starts at address "0x1000". Flash mode and boot mode for Metro ESP-32 development board by default is dio and dio respectively.