LILYGO T-Knob - image 1
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LILYGO·Dev Board

LILYGO T-Knob

Smart rotary encoder controller based on ESP32-C6 with WiFi 6, BLE 5, Zigbee/Thread, 4 RGB LEDs, buzzer, and magnetic Hall-effect knob for wireless volume control and smart home automation.

Starting from

$37.28

Compatible Firmware

Specifications

ArchitectureRISC-V
CPU Cores1
Clock Speed160MHz
Flash4MB
GPIO Level3.3V
Power Input5V
BluetoothBLE 5.0
Storagenone

Certifications

Components

Single-core RISC-V at 160MHz with WiFi 6 (802.11ax), BLE 5.0, and IEEE 802.15.4 for Zigbee/Thread.

Contactless magnetic rotary encoder for smooth infinite rotation without mechanical wear.

Bus Interfaces

I2C
SCL: GPIO7SDA: GPIO6
UART
RX: GPIO17TX: GPIO16

GPIO Map

GPIO6
I2C SDA
digital-inputdigital-output
I2C
GPIO7
I2C SCL
digital-inputdigital-output
I2C
GPIO20
LED 1
digital-output
GPIO14
Buzzer
digital-outputpwm

Overview

The LILYGO T-Knob is a wireless smart rotary controller built on the ESP32-C6, featuring a magnetic Hall-effect rotary encoder for infinite smooth rotation without mechanical wear. The ESP32-C6's multi-protocol connectivity — WiFi 6 (802.11ax), BLE 5.0, and IEEE 802.15.4 for Zigbee 3.0 and Thread 1.3 — enables direct integration with all major smart home ecosystems.

Four onboard RGB LEDs and a buzzer provide visual and audible feedback for volume levels, mode changes, or alerts. The knob push-down button enables click-to-confirm interactions for a complete rotary interface without additional components.

Use cases include wireless volume knobs for music systems, smart lighting dimmers, thermostat dials, Home Assistant scene selectors, and multi-function media controllers. The Thread and Zigbee support enables battery-free sleep modes with near-instant wake, while WiFi 6 ensures low-latency response even in congested 2.4 GHz environments.

Use Cases

3

Resources

Where to Buy

Explore more of the directory — popular use cases, firmware, and specs to browse next.