In Progress

Radio PIR Sensor Device for detecting human motion and receiver box to alert caregiver if motion is detected

This project is for a compact human motion detector using PIR sensors for detecting when someone has gotten up from bed or is in danger of rolling off the edge of the bed. The recommended design is using 1 PIR sensor at the top for detecting sitting up, 1 PIR sensor to detect falling off the left side edge and 1 PIR sensor to detect falling off the right side edge. A receiver box will receive a radio transmitted signal when the pir sensor detects human motion. When the receiver box gets the signal it makes a sound to alert a nearby caregiver.

This project includes both PCB design and CAD design

Design Requirements:

Sensor/Transmitter Device:

-Programming using Arduino code or similar is preferred

-Mode change function to switch between (1) detecting sitting up only, (2) detecting falling off the edge risk only, (3) detecting all motions

-Mode change should be synced to an RGB LED to indicate what mode the device is in

-LED for power should be used

-Preferably rechargeable battery operation, also should be able to be used while plugged into wall power supply

-ON/OFF power switch

-Radio signal to a separate receiver device which alerts a nearby person

-small and compact design to be stuck onto the top of a bed frame

Receiver Device:

-Programming using Arduino code of similar is preferred

-Battery/Wall power device

-LED for power indication

-Should make an alert sound and flash an LED when a signal is received

-Radio receiver function


1) PCB Design Files (Eagle compatible), Arduino (or similar) code for transmitter and receiver, BOM, Gerber Files (20% full payment)

2) CAD of transmitter and receiver sensor cases - solidworks compatible is preferred (10% full payment)

3) Received the PCBs and tested fully (70% full payment)

Skills: Arduino, Microcontroller, Electrical Engineering, Product Design, Solidworks

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About the Employer:
( 2 reviews ) Tsukuba, Japan

Project ID: #20368490

Awarded to:


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36 freelancers are bidding on average $659 for this job


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(36 Reviews)

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(47 Reviews)

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(31 Reviews)

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