Stamp-S3

Board
by M5Stackm5stamp-s3≈ cheap (under ~$15)

Also known as: m5stack_stamp_s3

Verify my boardCompareEdit on GitHub
Flash this board — 12 firmware options · Unverified
Stamp-S3 board
Board
Stamp-S3 pinout
Pinout

Specifications

Radiosinherited from ESP32-S3

Wi-Fi
Wi-Fi 4 · 2.4 GHz
Bluetooth LE
BLE 5
Bluetooth Classic
no
802.15.4
no

USB

Native USB
yes
Connector
usb-c

Board

Form factor
m5-stamp
Dimensions
24 × 18 × 4.7 mm

Display & extras

Extras
rgb-led
Built onStamp-S3 BoardESP32-S3 SoC

24x18mm ESP32-S3 stamp module: USB-C, programmable RGB LED, 23 exposed GPIO.

Firmware for this board

Unverified

  • Claude desktop buddyUnverifiedmulti
    Flash Claude desktop buddyguided

    Unverified esp-atlas asserts this board↔firmware link at the shown trust tier — it does not guarantee your specific unit or the current firmware version. Flashing can erase keys/config and can brick the device. At your own risk.

  • ESP32 Bit PirateUnverifiedpentest
    Flash ESP32 Bit Pirateguided

    Unverified esp-atlas asserts this board↔firmware link at the shown trust tier — it does not guarantee your specific unit or the current firmware version. Flashing can erase keys/config and can brick the device. At your own risk.

  • GhostBLE Cardputer + ADVUnverifiedpentest
    Flash GhostBLE Cardputer + ADVguided

    Unverified esp-atlas asserts this board↔firmware link at the shown trust tier — it does not guarantee your specific unit or the current firmware version. Flashing can erase keys/config and can brick the device. At your own risk.

  • M5Gotchi - the pwnagotchi for CardputerUnverifiedpentest
    Flash M5Gotchi - the pwnagotchi for Cardputerguided

    Unverified esp-atlas asserts this board↔firmware link at the shown trust tier — it does not guarantee your specific unit or the current firmware version. Flashing can erase keys/config and can brick the device. At your own risk.

  • PORKCHOPUnverifiedpentest
    Flash PORKCHOPguided

    Unverified esp-atlas asserts this board↔firmware link at the shown trust tier — it does not guarantee your specific unit or the current firmware version. Flashing can erase keys/config and can brick the device. At your own risk.

  • M5Stack Cardputer ADV SSHUnverifiedmulti
    Flash M5Stack Cardputer ADV SSHguided

    Unverified esp-atlas asserts this board↔firmware link at the shown trust tier — it does not guarantee your specific unit or the current firmware version. Flashing can erase keys/config and can brick the device. At your own risk.

  • NerdMiner v2Unverifieddisplay
    Flash NerdMiner v2guided

    Unverified esp-atlas asserts this board↔firmware link at the shown trust tier — it does not guarantee your specific unit or the current firmware version. Flashing can erase keys/config and can brick the device. At your own risk.

  • PigtailUnverifiedmulti
    Flash Pigtailguided

    Unverified esp-atlas asserts this board↔firmware link at the shown trust tier — it does not guarantee your specific unit or the current firmware version. Flashing can erase keys/config and can brick the device. At your own risk.

  • Raising Hell - ADVUnverifiedmulti
    Flash Raising Hell - ADVguided

    Unverified esp-atlas asserts this board↔firmware link at the shown trust tier — it does not guarantee your specific unit or the current firmware version. Flashing can erase keys/config and can brick the device. At your own risk.

  • Semi-Evil M5DialUnverifiedbadusb
    Flash Semi-Evil M5Dialguided

    Unverified esp-atlas asserts this board↔firmware link at the shown trust tier — it does not guarantee your specific unit or the current firmware version. Flashing can erase keys/config and can brick the device. At your own risk.

  • TamaputerUnverifiedmulti
    Flash Tamaputerguided

    Unverified esp-atlas asserts this board↔firmware link at the shown trust tier — it does not guarantee your specific unit or the current firmware version. Flashing can erase keys/config and can brick the device. At your own risk.

  • zxCardPuterUnverifiedmulti
    Flash zxCardPuterguided

    Unverified esp-atlas asserts this board↔firmware link at the shown trust tier — it does not guarantee your specific unit or the current firmware version. Flashing can erase keys/config and can brick the device. At your own risk.

Notes

  • ESP32-S3FN8; 8 MB flash. ESP32-S3FN8 ordering code has no PSRAM, per Espressif's ESP32-S3 series datasheet
  • WS2812B-2020 programmable RGB LED, 23 GPIO exposed, no onboard battery
  • io.gpio_exposed=23 QUOTED: vendor page states "IO Ports × 23", pins G0/G1/G2/G3/G4/G5/G6/G7/G8/G9/G10/G11/G12/G13/G14/G15/G39/G40/G41/G42/G43/G44/G46
  • io.gpio_free=20 DERIVED, not quoted (SPEC-io-power.md §5.3). Exposed pads {G0-G15,G39,G40,G41,G42,G43,G44,G46} (23, quoted from vendor IO Ports list). Subtracting esp32-s3's soc.reserved_pins that are exposed -- strapping {0,3,45,46}: {0,3,46} exposed (3), usb_flash_tied {19,20,35,36,37}: none exposed (0) -- gives 23 - 3 - 0 = 20.

Verify my board

Reads the connected chip over USB and checks it against what esp-atlas cites for Stamp-S3 — over Web Serial, no backend, nothing leaves your browser.

In-browser verify needs Web Serial: Chrome or Edge on a desktop. Safari, Firefox and phones cannot do it.

Serial monitor

Not connected.