ESP32-S3 1.8" Knob Display Development Board

The Waveshare ESP32-S3 based knob/dial development board comes with all the features you need to make fun projects including touchscreen interaction, dial turning encoders and built-in battery options - all wrapped in a CNC metal case with non-slip base!

The board is equipped with dual MCUs to provide all features on the board. It has an ESP32-S2R8 chip providing Wi-Fi and Bluetooth, offering 240MHz operating frequency and 8MB PSRAM, and a separate ESP32 providing Classic Bluetooth, offering 240MHz operating frequency and 4MB PSRAM. The board also includes 16MB additional flash.

The display is a round 1.8" 360x360 touchscreen LCD offering 262k colours, with touch controlled via I2C with interrupt support. Around the edges (inside the unit), the dual encoders provide input when the surround of the unit is turned, with satisfying 'clicky' sound feedback.

Inside, the internal PCB also provides an audio decoder chip, microphone, 3.5mm jack audio output, vibration motor, slot for a MicroSD card and battery charging management.

Cool thing! It looks like a Magic the Gathering life counter project has been made for this device, but we haven't had a chance to test it out yet.

We stock this product in two versions - with or without a lithium battery. please select an option before adding to your cart.

Lithium Battery Shipping: Due to courier restrictions, the battery version of this product can only be shipped within the United Kingdom. With this item in your cart, your shipping options will be limited and may cost more than our usual rates. Why?

Community Video

Features

• Dual wireless processors: ESP32-S2R8 with WiFi and Bluetooth, plus separate ESP32 with Classic Bluetooth
• High-performance processing: Dual 240MHz operation with 8MB PSRAM and 4MB PSRAM
• Expanded memory: 16MB additional flash for project storage
• Round touchscreen display: 1.8" 360x360 LCD with 262k colours
• Responsive touch control: I2C touch interface with interrupt support
• Rotary encoder input: Clicky dial control built into the unit surround
• Integrated audio and input: Audio decoder chip with built-in microphone and 3.5mm output
• On-board feedback: Built-in vibration motor for haptic response
• Removable storage: slot for adding a MicroSD card
• Battery option: Select battery or no battery before adding to cart. Built-in charging via USB-C.
• Power options: Available with or without a lithium battery (both support USB-C powering)
• Durable enclosure: CNC metal case with rubber non-slip base

What's onboard?

1. ESP32-S3R8
   • WiFi and Bluetooth SoC, 240MHz operating frequency, with 8MB PSRAM
2. ESP32-U4WDH
   • WiFi and Classic Bluetooth, 240MHz operating frequency, with 4MB flash
3. PCM5100A
   • High-performance stereo DAC with I2S interface
4. USB to UART
5. 16MB flash
6. Dual encoder
   • For ESP32-S3 and ESP32 respectively
7. MicroSD card slot
8. DRV2605
   • Vibration motor driver with I2C interface
9. CH445P
   • 4-SPDT 3.3V low-resistance analogue switch IC
10. Microphone
11. Ceramic antenna
12. PH1.27 10P SMD connector

1. Vibration motor
2. PH1.27 10P SMD header
3. PH1.25 lithium battery header
4. 3.5mm audio jack
5. Power button
6. Type-C connector
   • Switches between ESP32-S3 USB and ESP32 UART depending on the Type-C plug orientation
7. ESP32-S3R8 BOOT button
   • Press and power on again to enter download mode

LCD Specifications

Resources

• Product wiki

Package Contents

• 1x ESP32-S3 1.8" Knob Display Development Board
  • With or without lithium battery - select an option before adding to your cart.