• WitMotion WT31N Inclinometer, WitMotion WT31N: 3-axis accelerometer, dual-axis angle, UART-TTL, 0.1° static accuracy, CE and ISO9001 certified.
  • WitMotion WT31N Inclinometer, WitMotion WT31N: 3-axis accelerometer, dual-axis angle, UART-TTL, 0.1° accuracy, CE and ISO9001 certified.
  • WitMotion WT31N Inclinometer, The WitMotion WT31N is a 3-axis accelerometer and inclinometer with UART-TTL interface.
  • WitMotion WT31N Inclinometer, WitMotion WT31N: inclinometer, 3-axis accelerometer, dual-axis angle, UART-TTL interface, 0.1° static accuracy.
  • WitMotion WT31N Inclinometer, A compact LIS3DH-based accelerometer measures 3-axis acceleration and dual-axis angles with high accuracy, low power, and TTL serial communication.
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WitMotion WT31N Inclinometer - 3-Axis Accelerometer + Dual-Axis Angle, UART-TTL, 0.1° Static Accuracy

WitMotion WT31N Inclinometer - 3-Axis Accelerometer + Dual-Axis Angle, UART-TTL, 0.1° Static Accuracy

WitMotion

$19.00 USD
$19.00 USD
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Overview

WitMotion WT31N Inclinometer is a miniature MEMS module that measures 3-axis acceleration (X/Y/Z) and computes dual-axis angle (roll & pitch on X/Y) with an onboard Kalman filter and 8-bit MCU. It outputs time, acceleration, and angle over UART (TTL) at up to 100 Hz. Designed for compact embedded projects, it supports 3.3–5 V systems and connects easily to PCs (USB-TTL) or Android phones (OTG + USB-TTL).
Note: the WT31 reports X/Y angles only; no Z-axis angle (no gyroscope on the module).

Key Features

  • Acceleration: X/Y/Z axes

  • Angles: X (roll), Y (pitch)

  • Static angle accuracy: ±0.1° (X/Y)

  • Filter/solver: Kalman filter, onboard angle calculation (AHRS-style output for X/Y)

  • Output interface: UART (TTL), 115200 baud (TX↔RX cross)

  • Update rate: 100 Hz

  • Supply & draw: 3.3–5 V, <10 mA

  • PC software: data recording, dashboard/3D module, curve display (Windows XP/7/8/10)

  • Android app: configuration, calibration, live data & recording (via OTG + USB-TTL)

Specifications

Item Value
Product name WT31 Inclinometer
Brand WitMotion
IC STM8 + LIS3DH
Supply voltage 3.3 V – 5 V
Current <10 mA
Output data Time, Acceleration, Angle
Axes ACC: X/Y/Z; Angle: X/Y (roll/pitch)
Acceleration range ±16 g
Angle range X: ±90°, Y: ±90°
Acceleration resolution 0.0005 g
Static angle accuracy ±0.1° (X/Y)
Dynamic angle Not applicable (no gyro)
Update rate 100 Hz
Interface UART (TTL)
Baud rate 115200
Size 15.24 mm × 15.24 mm × 2 mm
Weight ≈0.34 g
Note No Z-axis angle because no gyroscope

Dimensions (board)

  • A = 15.24 mm, B = 15.24 mm, C = 2.54 mm, D = 12.7 mm, E = 2 mm (per drawing)

Pin Definition

No. Name Function
1 D0 —
2 VCC 3.3–5 V
3 RX UART-TTL Receiver
4 TX UART-TTL Transmitter
5 GND Ground
6 D1 —
7 D2 X+ alarm
8 VCC 3.3–5 V (second pad)
9 S1 Y+ alarm
10 S2 Y- alarm
11 GND Ground
12 D3 X- alarm

Connection tips

  • MCU: VCC→VCC, TX→RX, RX→TX, GND→GND.

  • PC: connect via USB-TTL adapter.

  • Android: OTG + USB-TTL adapter.

Software & App Functions

  • Data record and export

  • 3D module / dashboard visualization

  • Real-time data curve display

  • Config & calibration menus in app

Typical Applications

IoT tilt monitoring, UGV/robot leveling, mapping rigs, environmental/structural monitoring, energy equipment alignment, and building protection where compact accelerometer + inclinometer data and UART-TTL output are required.

Details

WitMotion WT31N Inclinometer, The WT31 MEMS IMU provides 0.1° accuracy, Kalman filtering, UART output, and measures acceleration, angular velocity, and angle for IoT, environmental monitoring, UGVs, energy, mapping, and building protection.

MEMS IMU for IoT, environmental monitoring, UGV, energy, mapping, and building protection. WT31 Inclinometer offers 0.1° accuracy, Kalman filter, UART output, and measures acceleration, angular velocity, and angle.

WitMotion WT31N Inclinometer, High precision inclinometer with Kalman filter and 8Bit MCU

High precision inclinometer with Kalman filter and 8Bit MCU

WitMotion WT31N Inclinometer, PC software supports data recording, 3D module, curves, dashboard, and configuration. Compatible with Windows XP/7/8/10. Connect via USB-TTL: VCC TX RX GND to +5V/3V3 RX TX GND; cross TX/RX.

PC software features: data record, 3D module, curve display, dashboard, configuration, compatible with Windows XP/7/8/10. Connection: VCC TX RX GND connected to USB-TTL +5V/3V3 RX TX GND; TX to RX, RX to TX.

WitMotion WT31N Inclinometer, Software shows real-time sensor data. Requires OTG and USB-TTL for Android, with wiring and interface details for setup and calibration.

Software displays real-time sensor data (acceleration, angle, magnetic fields). Requires OTG and USB-TTL for Android devices, with wiring details and interface layout for module setup and calibration.

The WitMotion WT31N inclinometer app shows settings, real-time data, and logs. The connection diagram illustrates the MCU interface using VCC, TXD, RXD, and GND pins for serial communication.

WitMotion WT31N inclinometer app displays settings, real-time data, and logs. Connection diagram shows MCU interface with VCC, TXD, RXD, GND pins for serial communication.

WitMotion WT31N Inclinometer, The WitMotion WT31 inclinometer measures acceleration and angle via UART, lacks Z-axis angle, uses STM8+Lis3dh IC, operates at 3.3V-5V, and consumes <10mA.

WitMotion WT31 inclinometer, 0.34g, STM8+Lis3dh IC, 3.3V-5V, <10mA, 15.24×15.24×2mm. Outputs acceleration, angle data via UART (TTL) at 115200bps, 100Hz rate. No Z-axis angle due to no gyroscope.

Summary: Pin details for WitMotion WT31N inclinometer, covering 12 pins' dimensions, functions, UART TTL interface, and alarm signals.

Pin definition for WitMotion WT31N inclinometer, including dimensions and functions of 12 pins, with UART TTL interface and alarm signals.

 

 

 

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