M5Stack Dial - ESP32-S3 Smart Rotary Knob with 1.28" Touchscreen
ESP32-S3 embedded board in a rotary-knob form factor with a 1.28-inch round TFT touchscreen, rotary encoder, RFID reader, RTC, buzzer, and a capacitive under-screen button.
ESP32-S3 embedded board in a rotary-knob form factor with a 1.28-inch round TFT touchscreen, rotary encoder, RFID reader, RTC, buzzer, and a capacitive under-screen button.
USB Type-C power/data connector. M5Stack documents USB Type-C as a 5 V DC power input for M5Dial.
Rear power terminal positive input for external DC supply. M5Stack documents rear power terminal input as DC 6 to 36 V.
Rear power terminal negative/return for the external DC supply.
Lithium battery expansion interface. M5Stack specifications list battery supply as DC 3.7 V.
PORT.A HY2.0-4P Grove-style connector ground. PinMap lists PORT.A cable order as black GND, red 5V, yellow G13, white G15.
PORT.A HY2.0-4P Grove-style connector 5 V supply. PinMap lists PORT.A cable order as black GND, red 5V, yellow G13, white G15.
PORT.A signal on ESP32-S3 GPIO13. M5Stack describes PORT.A/PORT.B as reserved expansion interfaces for I2C and GPIO devices.
PORT.A signal on ESP32-S3 GPIO15. M5Stack describes PORT.A/PORT.B as reserved expansion interfaces for I2C and GPIO devices.
PORT.B HY2.0-4P Grove-style connector ground. PinMap lists PORT.B as GND, 5V, G2, G1.
PORT.B HY2.0-4P Grove-style connector 5 V supply. PinMap lists PORT.B as GND, 5V, G2, G1.
PORT.B signal on ESP32-S3 GPIO2. M5Stack describes PORT.A/PORT.B as reserved expansion interfaces for I2C and GPIO devices.
PORT.B signal on ESP32-S3 GPIO1. M5Stack describes PORT.A/PORT.B as reserved expansion interfaces for I2C and GPIO devices.
Download-mode button input. M5Stack says to hold the G0 button on the StampS3 before powering on to enter download mode.
Reset/power control button. M5Stack documents pressing RST when no external USB supply is present as a power-off path.
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| USB Type-C | power | USB Type-C power/data connector. M5Stack documents USB Type-C as a 5 V DC power input for M5Dial. | 5V DC input | |
| Rear power terminal + | power | Rear power terminal positive input for external DC supply. M5Stack documents rear power terminal input as DC 6 to 36 V. | 6-36V DC input | |
| Rear power terminal - | ground | Rear power terminal negative/return for the external DC supply. | 0V return for 6-36V DC input | |
| Battery connector | power | Lithium battery expansion interface. M5Stack specifications list battery supply as DC 3.7 V. | 3.7V battery | |
| PORT.A GND | 1 | ground | PORT.A HY2.0-4P Grove-style connector ground. PinMap lists PORT.A cable order as black GND, red 5V, yellow G13, white G15. | 0V |
| PORT.A 5V | 2 | power | PORT.A HY2.0-4P Grove-style connector 5 V supply. PinMap lists PORT.A cable order as black GND, red 5V, yellow G13, white G15. | 5V |
| PORT.A G13 | 3 | signal | PORT.A signal on ESP32-S3 GPIO13. M5Stack describes PORT.A/PORT.B as reserved expansion interfaces for I2C and GPIO devices. | |
| PORT.A G15 | 4 | signal | PORT.A signal on ESP32-S3 GPIO15. M5Stack describes PORT.A/PORT.B as reserved expansion interfaces for I2C and GPIO devices. | |
| PORT.B GND | 1 | ground | PORT.B HY2.0-4P Grove-style connector ground. PinMap lists PORT.B as GND, 5V, G2, G1. | 0V |
| PORT.B 5V | 2 | power | PORT.B HY2.0-4P Grove-style connector 5 V supply. PinMap lists PORT.B as GND, 5V, G2, G1. | 5V |
| PORT.B G2 | 3 | signal | PORT.B signal on ESP32-S3 GPIO2. M5Stack describes PORT.A/PORT.B as reserved expansion interfaces for I2C and GPIO devices. | |
| PORT.B G1 | 4 | signal | PORT.B signal on ESP32-S3 GPIO1. M5Stack describes PORT.A/PORT.B as reserved expansion interfaces for I2C and GPIO devices. | |
| G0 | control | Download-mode button input. M5Stack says to hold the G0 button on the StampS3 before powering on to enter download mode. | ||
| RST | control | Reset/power control button. M5Stack documents pressing RST when no external USB supply is present as a power-off path. |
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