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WEMOS LOLIN S2 Mini specs, pinout & datasheets

Microcontroller board · WEMOS

Chip / SoC
ESP32-S2
Clock
240 MHz

Imported entry: generated from open-source board definitions (platformio, circuitpython, micropython), not reviewed by a person. Each fact links to the definition it came from.

Specifications

3 specs
Chip / SoC
ESP32-S2[1]
Clock
240 MHz[1]
Upload limits
4 MB flash, 320 KB RAM[1]

Upload limits are what a sketch or firmware may use after the bootloader, as the build tools enforce them, not the chip’s full memory.

Can I still use it?

4 platforms
Arduino framework
Supported[1]Arduino framework available through PlatformIO.
MicroPython
Supported[3]
CircuitPython
Supported[2]
ESP-IDF
Supported[1]

As published by each project, checked weekly. A platform not listed has no published information here, which is not the same as no support.

Datasheets and documents

1 documents

Pinout

34 pins
Pin names in firmware (34 pins)
From the firmware’s board definition[4]
Chip pinBoard names
GPIO0BUTTON, IO0
GPIO1IO1
GPIO2IO2
GPIO3IO3, A0
GPIO4IO4
GPIO5IO5, D0
GPIO6IO6
GPIO7IO7, SCK, D5
GPIO8IO8
GPIO9IO9, MISO, D6
GPIO10IO10
GPIO11IO11, MOSI, D7
GPIO12IO12
GPIO13IO13, D8
GPIO14IO14
GPIO15LED, IO15
GPIO16IO16, D4
GPIO17IO17
GPIO18IO18, D3
GPIO21IO21
GPIO33IO33, SDA, D2
GPIO34IO34
GPIO35IO35, SCL, D1
GPIO36IO36
GPIO37IO37
GPIO38IO38
GPIO39IO39
GPIO40IO40
GPIO41IO41
GPIO42IO42
GPIO43TX, IO43
GPIO44RX, IO44
GPIO45IO45
GPIO46IO46

Sources

4 sources
  1. PlatformIO board definition (lolin_s2_mini) at 1152c8f691
  2. CircuitPython board definition (lolin_s2_mini) at 83b54473a1
  3. MicroPython board definition (LOLIN_S2_MINI) at 19e685eca9
  4. CircuitPython pin definitions (lolin_s2_mini) at 395b187017

Spotted a mistake?

Reviewed by hand

Every report is read by a person and checked against a source before anything changes. Please link one if you have it.

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