PCB Design + BOM + Firmware Development for Fall Detection Device
Budget: €8 – €30 EUR
Hello,
We are looking for a freelance electronic engineer to develop:
PCB design (Gerber files)
Bill of Materials (BOM)
Firmware programming
Project Summary:
Development of an electronic board for a fall detection device for elderly people, worn around the waist.
The device includes two modules (front-left and rear-right), connected via a wire when the belt buckle is closed.
Each module must integrate:
A 6-axis IMU sensor for fall detection.
An ultra-low-power microcontroller.
Control of a 12 V – 60 W solenoid through a MOSFET (with freewheeling diode).
Capacitor-based energy storage charged from the main battery.
Solenoid activation time under 50 ms.
Power Supply:
Rechargeable USB battery.
Target autonomy: 2–3 days.
Standby consumption: < 20 µA if possible.
Operating Logic:
On fall detection by one module, a signal is sent to the other module.
Confirmation required within 200 ms.
If confirmed: both solenoids are activated simultaneously.
If not confirmed: no activation.
Deliverables expected:
Gerber files ready for PCB manufacturing.
Complete BOM with component references.
Firmware managing fall detection, inter-module communication, and solenoid control.
Thank you,
Louis
We are looking for a freelance electronic engineer to develop:
PCB design (Gerber files)
Bill of Materials (BOM)
Firmware programming
Project Summary:
Development of an electronic board for a fall detection device for elderly people, worn around the waist.
The device includes two modules (front-left and rear-right), connected via a wire when the belt buckle is closed.
Each module must integrate:
A 6-axis IMU sensor for fall detection.
An ultra-low-power microcontroller.
Control of a 12 V – 60 W solenoid through a MOSFET (with freewheeling diode).
Capacitor-based energy storage charged from the main battery.
Solenoid activation time under 50 ms.
Power Supply:
Rechargeable USB battery.
Target autonomy: 2–3 days.
Standby consumption: < 20 µA if possible.
Operating Logic:
On fall detection by one module, a signal is sent to the other module.
Confirmation required within 200 ms.
If confirmed: both solenoids are activated simultaneously.
If not confirmed: no activation.
Deliverables expected:
Gerber files ready for PCB manufacturing.
Complete BOM with component references.
Firmware managing fall detection, inter-module communication, and solenoid control.
Thank you,
Louis