Dial

Board
by M5Stackm5dial≈ medium (~$15–50)

Also known as: m5stack_dial

Verify my boardCompareEdit on GitHub
Flash this board — 5 firmware options · Reported
Dial board
Board

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-dial
Dimensions
51 × 51 × 32.3 mm
Battery connector
yes
Charging
yes

Display & extras

Display
1.28in 240x240 circular TFT GC9A01, FT3267 touch
Extras
rtcrfidtouchspeaker
Built onDial BoardESP32-S3 SoC

51x51mm ESP32-S3 rotary-knob unit: circular touch display, rotary encoder, RFID reader, RTC, USB-C, onboard charging circuit.

Firmware for this board

Reported

  • ESPHomeReportedhomeweb flasher
    Flash ESPHomeweb flasher

    Reported 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.

Unverified

  • BetterMochiUnverifiedmulti
    Flash BetterMochiguided

    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-avatar-mic-cores3Unverifiedmulti
    Flash M5Stack-avatar-mic-cores3guided

    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.

other

  • Palnagotchideclaredpentest
    Flash Palnagotchiguided

    declared 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
  • BM8563 RTC, WS1850S 13.56MHz RFID, rotary encoder (16 detents/64 pulses per rev), 80dB buzzer, 1.25mm-2P battery connector with onboard charging circuit (battery sold separately), PORT.A/PORT.B GPIO expansion
  • io.gpio_free=4 DERIVED, not quoted (SPEC-io-power.md §5.3). Vendor pinmap page states the two HY2.0-4P ports: "PORT.A | G13 | G15", "PORT.B | G2 | G1" -- 4 pads total (13, 15, 1, 2), none shared with the I2C/RTC/buzzer/encoder/display/touch pins the same page lists elsewhere. Subtracting esp32-s3's soc.reserved_pins that are exposed on those 4 -- none of strapping {0,3,45,46} or usb_flash_tied {19,20,35,36,37} match -- leaves all 4 free: 4 - 0 = 4. Math not vendor-stated; verify before treating as exact.

Verify my board

Reads the connected chip over USB and checks it against what esp-atlas cites for Dial — 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.