TinkerNewsWeekly · DIY electronicsEst. 2025
TinkerNews
Board

WEMOS LOLIN S3 PRO specs, pinout & datasheets

Microcontroller board · WEMOS

Chip / SoC
ESP32-S3
Clock
240 MHz

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

Specifications

3 specs
Chip / SoC
ESP32-S3[1]
Clock
240 MHz[1]
Upload limits
16 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?

3 platforms
Arduino framework
Supported[1]Arduino framework available through PlatformIO.
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

31 pins
Pin names in firmware (31 pins)
From the firmware’s board definition[3]
Chip pinBoard names
GPIO0BUTTON, BOOT0, IO0, D0
GPIO1IO1, A0, D1
GPIO2IO2, A1, D2
GPIO3IO3, A2, D3
GPIO4IO4, A3, D4
GPIO5IO5, A4, D5
GPIO6IO6, A5, D6
GPIO7IO7, A6, D7
GPIO8IO8, A7, D8
GPIO9SDA, IO9, A8, D9
GPIO10IO10, A9, SCL, D10
GPIO11IO11, MOSI, A10, D11
GPIO12IO12, SCK, A11, D12
GPIO13IO13, MISO, A12, D13
GPIO14IO14, A13, D14, TFT_LED
GPIO15IO15, A14, D15
GPIO16IO16, A15, D16
GPIO17IO17, A16, D17
GPIO18IO18, A17, D18
GPIO21IO21, D21, TFT_RST
GPIO38IO38, D38, NEOPIXEL
GPIO39IO39, D39
GPIO40IO40, D40
GPIO41IO41, D41
GPIO42IO42, D42
GPIO43IO43, D43, TX
GPIO44IO44, D44, RX
GPIO45IO45, TS_CS
GPIO46IO46, TF_CS
GPIO47IO47, TFT_DC
GPIO48IO48, TFT_CS

Sources

3 sources
  1. PlatformIO board definition (lolin_s3_pro) at 1152c8f691
  2. CircuitPython board definition (lolin_s3_pro) at 83b54473a1
  3. CircuitPython pin definitions (lolin_s3_pro) 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.

Report a mistake