Guition ESP32-S3-4848S040 (4" wall panel)
Also known as: ESP32-S3-4848S040 · 4848S040 · Sunton ESP32-4848S040 · Guition 4 inch smart display
The established Home Assistant wall-switch pick: a square 4" 480x480 IPS that fits 86-style wall boxes, with relay-equipped SKUs to replace a light switch outright. Its HA community megathread runs to 700+ posts.
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At a glance
⚑ flag an error| SoC | ESP32-S3 |
|---|---|
| Vendor | Guition / Sunton |
| Type | Display board |
| Memory | 16 MB flash · 8 MB PSRAM |
| Display | 4" 480x480 IPS (ST7701 (RGB + SPI init), RGB bus), capacitive (GT911) touch |
| Connectivity | Wi-Fi, BLE 5 |
| USB | USB-C |
| Battery | No |
| Free GPIO | ~0 (after display/touch/SD) |
| Onboard extras | relay (wall-box SKUs) |
| Typical price | $20-28 (street, varies) |
Compare all ESP32 display boards in one table →
Good for
Works with
Firmware and UI-stack support, with a known-good starting point where one exists. "Community" means an unofficial but working config or port.
- ESPHome Community support config / port →
- openHASP Community support config / port →
- LVGL / Arduino Community support
Gotchas to know
- The ST7701 needs a 3-wire SPI init sequence AND the 16-bit RGB bus — configs must do both (ESPHome/LVGL presets exist; don't hand-roll).
- Relay/wall-box SKUs switch mains — treat as a mains device and check your local rules before burying it in a wall.
- RGB bus + relays leave essentially no free GPIO.
- Sold under both Guition and Sunton branding with small revision differences; match configs to your exact SKU.
Variants
Bare-board and 86-box wall-mount SKUs, the latter with mains PSU and 1-3 relays. An ESP32-P4 '86 box' class (Waveshare and others, with mics/voice) is emerging as the next generation.
The ESP32-S3 inside
This board is built on the ESP32-S3 . See the SoC page for the full peripheral, GPIO and security details.
Bare modules on the same SoC:
Adding sensors?
Presence radars, climate, CO2, energy — the sensor comparison table covers what people actually wire to these boards, with ESPHome support status and clone-risk ratings per part. This board has few free pins (see above) — favour I2C sensors, which share two pins.
Resources
Community guides usually go deeper than this page: pinout diagrams, wiring, library setup and copy-paste example code from people who build with these boards daily.