Wireless-Tag WT32P4C5-43S: A $32 ESP32-P4 Touch Display

The Wireless-Tag WT32P4C5-43S is a 4.3-inch touch display development kit that puts two Espressif chips on one board: an ESP32-P4 for processing and graphics, and an ESP32-C5 for wireless. CNX Software covered the board on October 11, 2026, and Wireless-Tag's store lists it at $32. For anyone building a wall panel, a thermostat or a small control surface, that is a lot of hardware in one finished unit.

• Processor: ESP32-P4, dual-core RISC-V up to 400 MHz, plus a low-power core up to 40 MHz.
• Wireless: ESP32-C5 with dual-band 2.4 and 5 GHz Wi-Fi 6, Bluetooth 5 LE and 802.15.4.
• Display: 4.3-inch IPS, 800 x 480, 500 cd/m2, capacitive touch.
• Price: $32 on the Wireless-Tag store, listed as a pre-order.

Wireless-Tag WT32P4C5-43S Specifications

All figures below are from CNX Software's write-up of the board.

• Core module: WT0132P4-A1-N16R32, measuring 25 x 20 mm.
• Main SoC: ESP32-P4 with a dual-core RISC-V high-performance CPU up to 400 MHz, AI extensions and a single-precision FPU, plus a single low-power RISC-V core up to 40 MHz.
• Memory and storage: 16 MB or 32 MB of PSRAM, 16 MB of NOR flash and a microSD card slot.
• Media: a 2D pixel processing accelerator with H.264 and JPEG codec support.
• Display: 4.3-inch IPS TFT at 800 x 480, driven over an 18-bit parallel RGB interface, 500 cd/m2 backlight.
• Touch: capacitive, with a Hynitron CST3240 controller over I2C.
• Camera: 15-pin MIPI CSI-2 connector with two data lanes, compatible with Raspberry Pi CSI cameras.
• USB: one USB 2.0 High-Speed Type-C port for power and programming, and one Full-Speed Type-C port for flashing, serial console and JTAG.
• Expansion: a 14-pin header with 7 GPIOs, 5V, 3.3V and ground.
• Power: 5V at 1A through either USB-C port.
• Dimensions: 117.20 x 81.04 x 16.40 mm.

Why Pair an ESP32-P4 With an ESP32-C5?

The ESP32-P4 is Espressif's most capable microcontroller for graphics and camera work, but it has no radio of its own. Designers therefore add a companion chip, and the choice of companion decides what networks the board can join.

The ESP32-C5 is the strongest option available. It brings Wi-Fi 6 on both 2.4 GHz and 5 GHz, Bluetooth 5 LE and an 802.15.4 radio, which CNX Software lists as supporting Zigbee 3.0 and Thread 1.3. For a smart-home panel, 5 GHz Wi-Fi keeps the device off a crowded 2.4 GHz band, and Thread lets it talk to Matter devices directly.

We saw the same radio in the Waveshare ESP32-C5 Touch LCD 3.5 kit, which used the C5 as the only processor. Here it is a coprocessor, leaving the P4 free to drive the screen and a camera. Our guide to choosing an ESP32 variant explains where each chip fits.

Software Support and Getting Started

CNX Software reports support for ESP-IDF v6.x, the Arduino IDE and the LVGL graphics library. Wireless-Tag provides two GitHub repositories, one for the ESP32-P4 firmware and board support drivers and one for the wireless coprocessor firmware, along with PDF schematics, 2D drawings and 3D STEP files.

That documentation matters as much as the silicon. A display board is only as useful as its panel driver and touch driver, and having a working board support package means a first LVGL interface can be on screen quickly.

What Does the WT32P4C5-43S Cost, and When Does It Ship?

The Wireless-Tag store lists the board at $32, with a second option at $37 that includes a programming tool. Two things are worth checking before ordering. The store page showed the product as a pre-order when I looked, so delivery is not immediate. The listing also describes the wireless module as an ESP32-C61 or an ESP32-C5, so confirm which variant you are buying if 5 GHz Wi-Fi is the reason for your purchase.

With those points confirmed, this is a strong value. A 400 MHz RISC-V processor, a bright touchscreen, a camera connector and a dual-band Wi-Fi 6 radio for $32 lowers the cost of a custom home control panel considerably. More boards like this are in our mini computer coverage.

Sources: CNX Software — October 11, 2026; Wireless-Tag store listing — accessed October 13, 2026.