Pressure Sensing LED Feedback Electronic System

The electronic system, consisting of a microcontroller, two sets of two load cells, two amplifier modules, a power supply module, a microSD card module and microSD card, two batteries, and one LED, senses and records the pressures at the device-user interfaces and provides LED visual feedback when a specific threshold pressure is met and exceeded.

A simplified block diagram of the electronic system.

A schematic of the electronic system.

Electronic system inside the electrical box.

Load cells inside the axillary support.

3D-printed load cell inserts provide a seamless interface for sensing pressures at device-user interfaces.

Load cells on handle interface with LED component

Overview of electronic system on one Ergo-Crutch.

NEXT: Axillary Support + Handle