Back to Case Studies
WearablesHealth & Wellness
StrideTech
AI Smart Running Shoe based on nRF52832
Insole pressure sensor array that analyzes foot strike patterns and predicts injury risk.
Pressure Points
16 per insole
Battery Life
20 Hours
StrideTech
Client
A sports biomechanics company creating a sensor-insole system for runners to analyze form and prevent common injuries like shin splints and plantar fasciitis.
Challenge
Building a flexible, washable insole with 16 pressure sensing points and a 6-axis IMU that maintains accuracy after thousands of foot strikes.
Product Concept & Architecture
Each insole contains a 16-point Force Sensing Resistor (FSR) array, an LSM6DSO32 accelerometer/gyroscope, and a Nordic nRF52832 MCU. The flexible PCB is encapsulated in TPU and sits between the insole layers.
Engineering Solution
The nRF52832 runs a real-time gait analysis pipeline: FSR data → center-of-pressure trajectory → foot strike classification (heel/midfoot/forefoot). The IMU provides cadence and ground contact time. A TinyML model on the device detects gait asymmetry patterns correlated with injury risk. Real-time audio coaching cues (via BLE to earbuds) correct form deviations mid-run.
Result
Validated against force plate reference (r²=0.96). 87% injury risk prediction accuracy in collegiate runner study.
Deep Tech FAQ
What makes the AI Smart Running Shoe based on nRF52832 unique?+
The AI Smart Running Shoe based on nRF52832 leverages custom hardware and edge AI to deliver industry-leading performance and efficiency.
What are the core technical benefits?+
Key benefits include low power consumption, real-time processing, robust connectivity, and a compact form factor tailored for deployment.
Can this architecture be adapted for other use cases?+
Absolutely. The underlying methodology is modular and can be retargeted for various applications with minimal redesign.
Project Profile
Services Delivered
Hardware DesignEmbedded Software
Core Technologies
BLETinyMLRTOS
Silicon & Vendors
NordicTI
Need similar outcomes?
Let's discuss how ChipTalk can deliver results for your next project.
Tell us about your project.
Fast Response — Initial feedback within 48 hours
Full R&D Lifecycle — From feasibility to mass production
Extensive Experience — 500+ projects across 15 verticals
Rapid MVP Validation — Prototype in as fast as 12 weeks
Portfolio
