microS2

Development Board

Code name: MICROS2

ESP32S2

microS2 is a development board based on the ESP32S2 microcontroller using XTENSA architecture.

This board features a maximum CPU frequency of 240 MHz and 16MB flash memory.

About microS2

Tiny ESP32-S2 board with USB-C and low power - great for portable, secure IoT projects and embedded prototypes.

microS2 Technical Specifications

🛰️ Connectivity

WiFi: 802.11 b/g/n 2.4 GHz

Bluetooth: -

BLE: -

🧠 Microcontroller

Model: esp32s2

Clock Speed: 240 MHz

Flash Size: 16MB

Architecture: xtensa

✨ Features

48 digital IO pins
46 external interrupt pins
20 analog input pins
28 PWM pins

microS2 Useful Links

ESP32S2 Datasheet

https://www.espressif.com/sites/default/files/documentation/esp32-s2_datasheet_en.pdf

microS2 Pin Mappings

Below you can find the microS2 pinout. This development board provides 48 digital IO pins, out of which 46 can be used as external interrupt pins, 20 as analog input pins and 28 pins have Pulse-Width Modulation (PWM).

Pin	Analog	Touch	PWM	Other
0				BUTTON_BUILTIN
1	A0	T1	PWM
2	A1	T2	PWM
3	A2	T3	PWM
4	A3	T4	PWM
5	A4	T5	PWM
6	A5	T6	PWM
7	A6	T7	PWM
8	A7	T8	PWM	SDA
9	A8	T9	PWM	SCL
10	A9	T10	PWM
11	A10	T11	PWM
12	A11	T12	PWM
13	A12	T13	PWM
14	A13	T14	PWM
15	A14		PWM
16	A15		PWM
17	A16		PWM	DAC1
18	A17		PWM	DAC2
19	A18		PWM
20	A19		PWM
21			PWM	LED_BUILTIN
33			PWM
34			PWM	SS
35			PWM	MOSI SDO
36			PWM	SCK
37			PWM	MISO SDI
43			PWM	TX
44			PWM	RX

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 microS2

Bootloader tool	esptool_py
Uploader tool	esptool_py
Network uploader tool	esp_ota
Bootloader address	0x1000
Flash mode	dio
Boot mode	qio
Maximum upload size	1280 Kb (1310720 B)
Maximum data size	320 Kb (327680 B)

The microS2 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 microS2 development board by default is dio and qio respectively.