DescriptionThe Waveshare ESP32-S3 1.85inch LCD Capacitive Touch Display without Battery is a compact ESP32-S3 touch display development board for portable HMI, voice interaction, IoT control and product prototyping. It combines ESP32-S3R8, a 1.85inch LCD, capacitive touch, aluminum alloy case, dual microphones, audio codec and QMI8658 IMU in a small finished enclosure.This version is the official ESP32-S3-Touch-LCD-1.85B-EN standard version without Lithium Batt. The battery is not included; the MX1.25 Lithium Batt header remains available for custom 3.7V battery integration. The board supports Wi-Fi, BLE 5, ESP-IDF and Arduino workflows.Features ESP32-S3R8 Xtensa 32-bit LX7 dual-core processor up to 240MHz. 1.85inch LCD with 360 x 360 pixels, 262K colors, 450 cd/m2 brightness and 1200:1 contrast. Capacitive touch with CST816S touch IC and QSPI display interface. 2.4GHz Wi-Fi and Bluetooth 5 LE with onboard antenna. 8MB PSRAM and 16MB Flash for GUI and prototype workloads. Dual microphones, ES7210 echo cancellation and ES8311 audio codec. QMI8658 6-axis IMU for motion and orientation functions. CNC-machined aluminum alloy case, PWR/BOOT buttons, Type-C, GPIO and UART headers. Specifications SKU Waveshare-34556 Product Name ESP32-S3-Touch-LCD-1.85B-EN Brand Waveshare Version Standard version without Lithium Batt Product Type ESP32-S3 touch display development board MCU ESP32-S3R8 CPU Xtensa 32-bit LX7 dual-core processor, up to 240MHz Wireless 2.4GHz Wi-Fi 802.11 b/g/n and Bluetooth 5 LE Memory 512KB SRAM, 384KB ROM, onboard 8MB PSRAM, external 16MB Flash Display 1.85inch LCD, 360 x 360 pixels, 262K colors, 450 cd/m2, 1200:1 contrast ratio Display Interface QSPI, ST77916 driver IC Touch Capacitive touch, CST816S touch IC Audio Dual microphones, ES7210 echo cancellation chip, ES8311 audio codec chip, onboard speaker pads Sensor QMI8658 6-axis IMU Connectors Type-C, SH1.0 4PIN serial communication header, SH1.0 4PIN GPIO header, MX1.25 2PIN Lithium Batt header Case CNC-machined aluminum alloy case Weight 220g estimated packaged weight without battery Applications Portable HMI: compact control pages, menus and device status screens. AI speech interaction: voice capture, wake-up tests and online LLM demos. Wireless IoT control: Wi-Fi and BLE 5 control for sensors or actuators. GUI prototyping: fast ESP-IDF or Arduino experiments with a touch LCD. Demo devices: portable display hardware with enclosure, lanyard and integrated audio. Product List ESP32-S3-Touch-LCD-1.85B host x 1 SH1.0 4PIN cable 100mm x 2 Silver polyester lanyard 18cm x 1 3.7V Lithium Batt is not included with this SKU Other ContentThe official overview shows the Waveshare ESP32-S3-Touch-LCD-1.85B-EN as a portable mini display with capacitive touch and a CNC-machined aluminum alloy case.The feature diagram summarizes the ESP32-S3R8, 360 x 360 LCD, audio, IMU, Wi-Fi and BLE functions.This SKU is the standard version without Lithium Batt. The battery-included version is a different variant product.The capacitive touch display is useful for compact HMI pages, status readouts, menus and portable interaction.The function diagrams show the case, touch display, audio, wireless, buttons, headers and battery connector for optional custom integration.The CNC-machined aluminum alloy case protects the board and gives the display a compact finished-device appearance.The official display graphic highlights the 178 degree viewing angle, 262K colors and readable output for small control interfaces.Dual microphones, echo cancellation and an audio codec help with voice capture and local audio functions.Wi-Fi and BLE 5 support makes the board suitable for IoT services, local gateways and wireless controls.The platform images show support for ESP-IDF and Arduino development workflows.The lanyard mounting holes are useful for demo units, keyring displays and portable test devices.The product overview and onboard diagram help confirm interfaces, buttons and component locations.The outline dimension drawing helps when planning enclosure fit or portable mounting.The without-battery package includes the host, two SH1.0 4PIN cables and one 18cm lanyard.Resources Waveshare ESP32-S3-Touch-LCD-1.85B documentation Espressif ESP32-S3 ESP-IDF documentation Arduino documentation FAQDoes Waveshare-34556 include a battery?No. Waveshare-34556 is the standard version without Lithium Batt. The battery header is present, but the battery is not included.What resolution does the display use?The 1.85inch LCD uses the official 360 x 360 pixel resolution with 262K colors.Which development environments are supported?The official page lists ESP-IDF and Arduino development workflows.Does the board support audio functions?Yes. It includes dual microphones, ES7210 echo cancellation, ES8311 audio codec and onboard speaker pads.What is this ESP32-S3 touch display best used for?It is suitable for portable HMI, wireless IoT panels, speech interaction, GUI prototypes and compact demo devices.
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