T-BHI260AP Quick Start
Overview
T-BHI260AP is a motion sensing expansion module with no onboard host MCU. It connects to a compatible LILYGO mainboard (T-Deck, T-Display-S3, T-Display-S3-Pro, T-Echo) via I²C or SPI and is driven entirely by the host's firmware.
Hardware Connection
- Connect T-BHI260AP to your mainboard via the pin headers
- Use I²C (SDA/SCL) or SPI (MOSI/MISO/SCK/CS) depending on your mainboard's available interface
- Ensure the mainboard supplies 3.3 V to the module
Software Setup
Clone the example repository for your host board and open the BHI260AP example sketch:
# Example for T-Display-S3
git clone https://github.com/Xinyuan-LilyGO/T-Display-S3.gitSelect the appropriate board and settings for your host mainboard (not the expansion module itself), then upload.
Notes
- No host MCU: T-BHI260AP has no microcontroller of its own — all firmware runs on the host mainboard
- AI IMU: BHI260AP integrates a 6-axis IMU (accelerometer + gyroscope) with an onboard self-learning AI algorithm
- Motion features: Real-time pedestrian tracking, personalized fitness analysis, swimming stroke metrics
- Waterproof: Designed for outdoor and underwater use
- Interface: I²C or SPI (select via hardware jumper)
Compatible Mainboards
| Product | Notes |
|---|---|
| T-Deck | Primary recommended host |
| T-Display-S3 | |
| T-Display-S3-Pro | |
| T-Echo |
FAQ
Q: Which interface should I use — I²C or SPI? A: Either works. SPI gives higher throughput; I²C is simpler and uses fewer pins. Select via the hardware jumper on the module.
Q: Does it work with Arduino? A: Yes, through the host mainboard. Flash your host board with an Arduino sketch that includes the BHI260AP driver library.