ESP32-S3 4.3inch AI Voice Touch Display Development Board (Type C, With Case)
Build a talking touch panel that wires straight into switches, sensors and your existing DC power supply.
Available with a lead time
Expect dispatch between Nov 05 and Nov 12
Restrictions apply to this equipment as it uses button/coin cell batteries:
- The equipment is intended to be used in trades, professions or industries
- The equipment is not intended for sale to the general public
- The equipment is not intended to be used where children are present
- You are aware that this equipment may not meet child safety testing requirements as it is not intended to be used by consumers or general public, but rather, is intended to be used in trades, professions or industries in conjunction with the limitations and restrictions listed above
- You are aware that these restrictions are due to a change in Australian legislation in 2022 for button/coin cell batteries
A declaration of use will need to be submitted during checkout.
A touchscreen you can talk to, in a case ready to mount on the job. An ESP32-S3 with Wi-Fi and Bluetooth 5 (LE) drives an 800 × 480 capacitive touch display, a dual-microphone array and an audio codec. It can connect to online large model platforms such as DeepSeek and Doubao for AI speech interaction.
It is built to be installed, not just used on the bench. A wide-range DC input and optocoupler-isolated digital inputs and outputs let it run from your existing supply, read switches and sensors, and signal other equipment without an extra interface board.
Program it over USB-C in Arduino IDE or ESP-IDF and build the interface with LVGL. Power, I2C, a 5V output and the isolated I/O all come out on a 3.5mm-pitch screw terminal block at the back of the case.
Features
- Clear voice capture and playback: the dual microphones feed an ES7210 ADC with echo cancellation, and an ES8311 codec drives a speaker on the MX1.25 header
- Readable from almost any angle: the IPS panel has a 160° viewing angle and 5-point capacitive touch with interrupt support
- Room for rich LVGL interfaces and audio data with 16MB Flash and 8MB PSRAM
- Connects to real-world signals: the isolated inputs accept passive dry contacts or active NPN/PNP signals from 5–36V, and the isolated open-drain outputs sink up to 450mA per channel
- Runs from a 7–36V DC supply, USB-C or a 3.7V lithium battery with onboard charging, with LEDs showing power and charge status
- Keeps time through power loss with a PCF85063 RTC (with alarm) and a CR927 backup battery holder
- Stores logs, images and audio files on a TF card
- The case holds a 60 × 30 × 6 mm lithium battery inside and has 75mm-spaced M4 holes for rail, wall or monitor-arm mounting
- Flexible clock and independent module power control for low-power operation
Technical Specifications
| Module | ESP32-S3-WROOM-1-N16R8 (ESP32-S3R8), Xtensa 32-bit LX7 dual-core, up to 240MHz |
| Memory | 512KB SRAM, 384KB ROM, 8MB PSRAM, 16MB Flash |
| Wireless | 2.4GHz Wi-Fi 802.11 b/g/n, Bluetooth 5 (LE), onboard antenna |
| Display | 4.3inch IPS, 800 × 480, 65K colour, RGB interface (ST7262), 160° viewing angle |
| Touch | Capacitive 5-point, I2C (GT911), interrupt support |
| Audio | ES8311 codec, ES7210 4-channel ADC with echo cancellation, dual microphones, MX1.25 2-pin speaker header |
| AI speech | Supports online large model platforms such as DeepSeek and Doubao |
| Storage | TF (microSD) card slot |
| RTC | PCF85063 with alarm, CR927 backup battery holder |
| Digital inputs | 2x optocoupler-isolated (DI0, DI1), 5–36V, passive dry contact or active NPN/PNP |
| Digital outputs | 2x optocoupler-isolated (DO0, DO1), 5–36V open-drain, 450mA per channel max |
| Other interfaces | I2C (VOUT 5V/3.3V, resistor-selectable), 5V output, USB Type-C (flashing, serial log, debugging), BOOT and RESET buttons |
| Power input | 7–36V DC terminal or USB Type-C |
| Battery | 3.7V single-cell lithium, MX1.25 2-pin header, on/off switch, CS8501 charger (580mA default charge current) |
| Indicators | PWR, CHG, DONE |
| Case dimensions | 116.3 × 79.0 × 18.0 mm; 2x M4 mounting holes at 75mm spacing |
| Development | Arduino IDE, ESP-IDF, LVGL |
Resources
- Waveshare Wiki for ESP32-S3-Touch-LCD-4.3C (schematic, Arduino and ESP-IDF demos)
What's Included
- 1x ESP32-S3-Touch-LCD-4.3C-BOX (board and display in plastic case)
Not included: speaker, lithium battery, mounting brackets or monitor arm.
Exact shipping can be calculated on the view cart page (no login required).
Products that weigh more than 0.5 KG may cost more than what's shown (for example, test equipment, machines, >500mL liquids, etc).
We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):
- $3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
- $7+ for Standard Post (typically 6+ business days, tracked)
- $11+ for Express Post (typically 2+ business days, tracked)
- Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.
Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.
Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.
International Orders - the following rates are for New Zealand and will vary for other countries:
- $12+ for Pack and Track (3+ days, tracked)
- $16+ for Express International (2-5 days, tracked)
If you order lots of gear, the postage amount will increase based on the weight of your order.
Our physical address (here's a PDF which includes other key business details):
40 Aruma Place
Cardiff
NSW, 2285
Australia
Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.
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