# LILYGO T-Halow P4 packs ESP32-P4, WiFi HaLow into M.2 2280 board

> **Key takeaway:** LILYGO's $27 M.2 2280 development board combines an ESP32-P4 RISC-V MCU, ESP32-C6 for WiFi 6/Bluetooth/Zigbee, and a WiFi HaLow module for kilometer-range wireless.

**Published:** 2026-10-23T09:00:19+00:00 
**Source:** CNX Software 
**Category:** open-hardware 
**Canonical URL:** https://fosswire.org/news/lilygo-t-halow-p4-packs-esp32-p4-wifi-halow-into-m2-2280-boa.html 

## Summary
LILYGO T-Halow P4 is a compact M.2 2280 development board targeting IoT gateways, remote cameras, and industrial monitoring. It pairs Espressif's ESP32-P4 dual-core RISC-V MCU running at 400 MHz with an ESP32-C6 wireless co-processor for WiFi 6 and 802.15.4 protocols, plus a Taixin TX-AH WiFi HaLow module claiming up to 1.2 km line-of-sight range. The board exposes GPIO and interfaces through an M.2 B-key connector for carrier board integration, and supports MIPI CSI/DSI cameras and displays with hardware H.264 encoding at 1080p30.

## What's on the T-Halow P4
- **ESP32-P4NRW32X**: dual-core RISC-V @ 400 MHz with AI extensions and single-precision FPU, plus low-power single-core RISC-V @ 40 MHz
- **Memory**: 768 KB HP L2MEM, 32 KB LP SRAM, 8 KB TCM, 32MB PSRAM (per GitHub/wiki; product page lists 8MB), 16MB QSPI NOR flash
- **Wireless**: ESP32-C6-MINI-1U via SDIO for WiFi 6, Bluetooth 5, Zigbee/Thread/Matter; Taixin TX-AH HaLow module via SPI/UART with 150 Kbps–32.5 Mbps throughput
- **Video**: 2-lane MIPI DSI with touch, 2-lane MIPI CSI with OV2710 support, hardware H.264/JPEG codec at 1080p30
- **Form factor**: 80 × 22 mm M.2 2280 with B-key edge connector exposing GPIO, I2C, UART, ADC, SD
- **Software**: ESP-IDF 5.4.1+ examples on GitHub; HaLow module controlled by SPI (data) and UART (AT commands); browser-based Web Serial config tool

## Why it matters
The M.2 2280 form factor with B-key connector enables integration into custom carrier boards, a departure from typical ESP32 devkit layouts that may appeal to product designers building compact IoT hardware. WiFi HaLow's sub-GHz operation and kilometer-range could find use in agricultural sensors, remote monitoring, and industrial deployments where conventional WiFi lacks reach.