T-Halow get it now

Overview

T-Halow is a long-range IoT development board based on ESP32-S3 (16 MB Flash, 8 MB PSRAM). Integrates the TX-AH Wi-Fi HaLow (802.11ah) module (730–950 MHz), OV2640/OV5640 DVP camera (up to 5 MP), RJ45 Ethernet port, TF card slot, and 18650 battery support. Wi-Fi HaLow provides sub-GHz long-range wireless connectivity with up to several kilometers range and better wall penetration than 2.4 GHz Wi-Fi. Suitable for security monitoring, agricultural telemetry, and industrial IoT gateways. 113 × 33 mm.

T-Halow has two hardware versions. Please refer to the VER1 or VER2 documentation depending on your hardware. Both versions use the same AT Command Set.

Quick Start

Example Support

Example	PlatformIO/Arduino	ESP-IDF	Description
T-Halow Examples	✓		Camera, HaLow, Ethernet examples

PlatformIO

1. Install Visual Studio Code and Python
2. Search for and install the PlatformIO IDE extension in VS Code
3. Clone the T-Halow repository
4. Open platformio.ini, uncomment the desired example under [platformio], press Ctrl+S
5. Click ✓ to compile, click → to upload

Arduino

1. Install Arduino IDE
2. Add ESP32 boards URL: https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json
3. Copy T-Halow/lib/ contents to your Arduino libraries folder
4. In Tools → Board, configure:

Arduino IDE Setting	Value
Board	ESP32S3 Dev Module
Upload Speed	921600
USB Mode	Hardware CDC and JTAG
USB CDC On Boot	Enabled
USB Firmware MSC On Boot	Disabled
USB DFU On Boot	Disabled
CPU Frequency	240 MHz (WiFi)
Flash Mode	QIO 80 MHz
Flash Size	16MB (128Mb)
Core Debug Level	None
Partition Scheme	16M Flash (3MB APP/9.9MB FATFS)
PSRAM	OPI PSRAM
Arduino Runs On	Core 1
Events Run On	Core 1

5. Click Upload

Development Platforms

1. PlatformIO — Recommended
2. Arduino IDE
3. ESP-IDF

Video

Key Features

• ESP32-S3 dual-core LX7 @ 240 MHz, 16 MB Flash, 8 MB PSRAM, Wi-Fi + BT 5.0
• TX-AH Wi-Fi HaLow (802.11ah) module, 730–950 MHz, up to 32.5 Mbps, km-range
• OV2640 (2 MP) / OV5640 (5 MP) DVP camera support
• RJ45 Ethernet, TF card, 18650 battery support with ADC monitoring
• 113 × 33 mm

Product Parameters

Feature	Specification
MCU	ESP32-S3 @ Dual-core LX7, 240 MHz
Flash	16 MB
PSRAM	8 MB
Wi-Fi	2.4 GHz 802.11 b/g/n
Bluetooth	Bluetooth 5.0 LE
Wi-Fi HaLow	TX-AH (802.11ah), 730–950 MHz
Camera	OV2640 (2 MP) / OV5640 (5 MP) DVP
Ethernet	RJ45 (replaceable firmware)
Storage	TF card slot
USB	1 × Type-C (5 V/500 mA)
Battery	18650 (with ADC monitoring)
Dimensions	113 × 33 mm

Pin Diagram

Pin Mapping

Camera	IO4 (SIOC), IO5 (SIOD), IO17 (HREF), IO12 (PCLK), IO8 (MCLK), IO16 (VSYNC), IO18 (RST), IO9–IO21/IO47–IO48 (D0–D9)
SPI	IO39 (CS), IO41 (SCK), IO40 (MOSI), IO42 (MISO)

Dimension Diagram

Schematic

Datasheet

• ESP32-S3 Datasheet
• TX-AH Module Resources

Software Development

• T-Halow GitHub Repository

Dependent Libraries

• (Managed via PlatformIO — see platformio.ini)

FAQ

• Q. Which version of T-Halow do I have? A. VER1 was released 2023-08-23, VER2 on 2024-04-16. Check the PCB or refer to the version table in the GitHub README.

• Q. How do I enter download mode? A. Hold BOOT, press RST once, release RST while still holding BOOT, then start the upload.

• Q. How do I flash TX-AH module firmware? A. Use the downloader tool or ESP32 flash_download_tool — see firmware flashing documentation.

Version History

Version	Release Date	Update Description
T-Halow VER1	2023-08-23	Initial version
T-Halow VER2	2024-04-16	Updated pairing method