--- product_id: 88918373 title: "WT901 Digital Compass" brand: "witmotion" price: "Rp1399632" currency: IDR in_stock: true reviews_count: 10 url: https://www.desertcart.id/products/88918373-wt901-digital-compass store_origin: ID region: Indonesia --- # 9-axis sensor fusion @ 200Hz Dual I2C & UART interfaces Kalman filtering for ultra-stable data WT901 Digital Compass **Brand:** witmotion **Price:** Rp1399632 **Availability:** βœ… In Stock ## Summary > πŸš€ Elevate your projects with pinpoint motion sensing mastery! ## Quick Answers - **What is this?** WT901 Digital Compass by witmotion - **How much does it cost?** Rp1399632 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/products/88918373-wt901-digital-compass) ## Best For - witmotion enthusiasts ## Why This Product - Trusted witmotion brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Lifetime Support:** 12-month warranty + expert help whenever you need - β€’ **Rock-Solid Stability:** Kalman algorithm ensures low noise & bias stability - β€’ **Plug & Play Simplicity:** Out-of-the-box ease with rich tutorials & demos - β€’ **Versatile Connectivity:** Seamlessly integrates via I2C or UART protocols - β€’ **Precision Beyond Compare:** 0.05Β° accuracy with Cortex-M0 & MEMS tech ## Overview The WITMOTION WT901 is a compact, high-precision 9-axis IMU sensor module combining accelerometer, gyroscope, magnetometer, and inclinometer data with advanced Kalman filtering. Operating at up to 200Hz, it delivers ultra-stable, low-noise measurements with 0.05Β° accuracy, featuring dual I2C and UART interfaces for seamless integration with Arduino, Raspberry Pi, and other platforms. Backed by professional-grade support and comprehensive tutorials, it’s the go-to choice for engineers and makers demanding reliable motion sensing in compact form. ## Description Established in 2015, WitMotion aims to become a global leader in attitude sensors, AHRS IMU. The company is dedicated to make attitude measurement and tilt angle sensing solutions more accessible and easier for engineers around the world. Please visit WIT-MOTION.com and find support page for all kinds of documentation, software, instructions, APP, click the WITMOTION Google Drive to download the tutorial at your wish. Find WITMOTION on Youtube channel and subscribe. We will consistently upload the interesting videos for lessons or project experience sharing. Focusing on becoming a global sensor supplier, we will apply Wit-motion sensors to a wider range of industries. International Standard for Automotive MEMS Tech & Algorithm embedded. Strict chips selection & Advanced calibration tech. WT901’s scientific name is the AHRS IMU sensor. A sensor measures 3-axis angle, angular velocity, acceleration, magnetic field. WitMotion WT901 integrates a high-precision gyroscope, accelerometer, and geomagnetic field sensor, and adopts a high-performance microprocessor, advanced dynamics fusion algorithm, and Kalman dynamic filtering algorithm to quickly analyze the module's current real-time motion posture. WT901 Accelerometer WT901BLECL Inclinometer WT901C-TTL Digital Sensor Military-grade HWT901B WTGAHRS2 GPS IMU ## Features - 【 High Performance 】Rock-solid data output: 3-axis XYZ (Pitch Roll Yaw) Acceleration+ Gyro+ Angle+ Magnetic field+Quaternion, measurement range and output rate ( 0.2-200Hz) selectable - 【 Robust Design 】 Cortex-M0 core processor, highly-integrated MEMS, and Kalman Algorithm combine to deliver measurement accuracy at 0.05 degree(X, Y-axis), small in size, diverse interface, professional for customer's integration project - 【 WITMOTION Advantage 】8-year Professional Attitude Measuring Solution Provider, sensors integrated R&D dynamic fusion algorithm and Kalman Filtering ensuring stable data output and excellent bias stability, low noise level, increasing measurement accuracy - 【 Worry-free Support 】12-month warranty, lifetime friendly customer service by WitMotion team. Option 1. The tutorial link is printed on the guiding card inside the package. Option 2. search wit-motion(dot)com and download the complete tutorial. Option 3. contact us if you need any help, support (at) wit-motion (dot) com - 【 What You Get 】1 x WitMotion WT901 TTL Accelerometer sensor+ 2* Six pin male header (1x6) +1 x Welcome guide (USB-UART converter not included ) ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B07GBRTB5K | | Best Sellers Rank | #123,024 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #33 in Acceleration Sensors | | Brand | WITMOTION | | Card Description | Dedicated | | Chipset Brand | TDK Corporation | | Color | Black | | Computer Memory Type | DDR SDRAM | | Customer Reviews | 4.1 4.1 out of 5 stars (55) 4.1 out of 5 stars | | Date First Available | November 12, 2016 | | Graphics Coprocessor | Integrated Graphics | | Hard Drive | HDD | | Hard Drive Interface | PCIE x 4 | | Is Discontinued By Manufacturer | No | | Item Dimensions Lxwxh | 0.6 x 0.08 x 0.6 inches | | Item Model Number | WT901 | | Item Weight | 0.317 ounces | | Manufacturer | WitMotion | | Max Screen Resolution | 60x60 | | Number Of Processors | 1 | | Operating System | Windows | | Processor | 1 GHz 68000 | | Product Dimensions | 0.6 x 0.08 x 0.6 inches | | Ram | 16 GB DDR4 | | Screen Resolution | 12-bit | | Series | WT901 | | Wireless Type | Bluetooth | ## Product Details - **Brand:** WITMOTION - **CPU Model:** 68000 - **CPU Speed:** 1 GHz - **Graphics Card Description:** Dedicated - **Graphics Coprocessor:** Integrated Graphics - **Memory Storage Capacity:** 1 TB - **Operating System:** Windows - **Personal computer design type:** Barebone - **Ram Memory Installed Size:** 1 GB - **Specific Uses For Product:** Professional ## Images ![WT901 Digital Compass - Image 1](https://m.media-amazon.com/images/I/51k3AjMwOYL.jpg) ![WT901 Digital Compass - Image 2](https://m.media-amazon.com/images/I/61AaU5H7Z9L.jpg) ![WT901 Digital Compass - Image 3](https://m.media-amazon.com/images/I/61zsBF+SyEL.jpg) ![WT901 Digital Compass - Image 4](https://m.media-amazon.com/images/I/71jL3FM3rYL.jpg) ![WT901 Digital Compass - Image 5](https://m.media-amazon.com/images/I/61tZv254vWL.jpg) ## Questions & Answers **Q: Where is the code to interface to Arduino as promised above?** A: I gave up and sent it back. Customer support was non existent. Well, they responded, but the communication gap was so great, I never received an answer. **Q: Does this unit support external GPS !?** A: No ## Customer Reviews ### ⭐⭐⭐⭐⭐ Ease of use *by on Reviewed in the United States March 15, 2023* Excellent job on how these guys have made such a complicated device so easy to use. There is a lot going on with the fusion algorithms that go into this and having done this myself with all the code that is involved in getting this to work, these guys have removed a lot of the complexity and provided a fairly easy-to-use interface. Very good documentation (assuming you can find it all) and good videos made it fairly straight forward to get it to work OOB (out-of-the-box) and calibrate it. From what I have seen from using competing devices, this by far is the easiest to use and get working - I highly recommend it! Having an I2C and a UART interface is a huge plus - doesn't take long to get it up and running and providing meaningful results. ### ⭐⭐⭐⭐ Budget Friendly IMU *by on Reviewed in the United States January 4, 2024* I used UART. The software they recommend is very good and almost a must to easily configure the device, with a USB to UART cable. Amazing accuracy for the price, but very difficult to interface with.Their online code samples are not good at all, but you can make your own or find things on github.For Python I would recommend the pywitmotion library on GitHub. All the heavy lifting has been done and its easy to implement. ### ⭐⭐⭐⭐⭐ Very nice module with good software *by on Reviewed in the United States June 12, 2023* The device works very well. Software is easy to use and reports everything with good resolution and fast response time.The support team is also very quick and helpful. I had an issue getting an external GPS to connect but once I set the baud rate (both GPS and module) to 115200 per their suggestion it worked perfectly. They got back to me within an hour with exactly the info I needed.Planning to use this for telemetry on an RC car. Highly recommended! ## Frequently Bought Together - [Arduino Accelerometer Sensor+Inclinometer] WT901 High-Accuracy 3-axis Acceleration+Gyroscope+Tilt Angle +Magnetometer with Kalman Filtering, 9-axis MPU9250 USB 200Hz IMU Raspberry Pi AHRS Module - HiLetgo 3pcs GY-521 MPU-6050 MPU6050 3 Axis Accelerometer Gyroscope Module 6 DOF 6-axis Accelerometer Gyroscope Sensor Module 16 Bit AD Converter Data Output IIC I2C for Arduino - WitMotion USB-UART Converter 3-in-1 Multifunctional Serial Adapter, with CH340 Chip, Compatible with Windows 7/8/10, Linux, Arduino, 300-1.5 Mbps Baud Rates, 12-Month Warranty --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.id/products/88918373-wt901-digital-compass](https://www.desertcart.id/products/88918373-wt901-digital-compass) --- *Product available on Desertcart Indonesia* *Store origin: ID* *Last updated: 2026-06-04*