Selfaware Suspender

Eletronic jeans suspenders, with Gyros and vibration motor for feedback, to solve the "bad-posture" problem of Geeks.

Kenny.Industries

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Description

There are posture sensors, like a iot cushion ( http://darma.co ) or the MIT's modular sensor stripe, and stick it to your back.
But these things are quite inpractible for a student who is working on different places and different occations, but wants a strait back when sitting on his tiny macbook air.

A friend of mine gave me a tip that the lower back (pelvis) is quite important for that, so my construction considers that.

The algorithm will be simple: When the average posture of 5 minutes is different from the calibrated "ideal" posture, then the critical position will vibrate and for demonstration flash up.
This way, it reminds constantly on the bad posture. (I hope at some point, I don't need this anymore)

Further approaches will be to add data-output by UART and IR-LED or even BLE (HM10) but this will be done on MK2.

Files

selfawaresuspender-2.stl Got parts, should now fit Standard Tesselated Geometry - 46.18 kB - 07/02/2016 at 15:13		Download
selfawaresuspender.stl prototypical MK1 Standard Tesselated Geometry - 57.99 kB - 06/21/2016 at 15:01		Download

Components

3 × MPU6050
1 × Arduino Mini
1 × 3,7 Li ion battery 18659
1 × holder for that 18650
1 × charger circuit TP4056

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Project Logs

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Concepts
Kenny.Industries • 06/21/2016 at 15:18 • 0 comments

Two sensors
"The pin "AD0" selects between I2C address 0x68 and 0x69." -> 3.3V

Third base sensor:
https://github.com/felias-fogg/SoftI2CMaster

Sum up and devide.

Calibration -> needs on/of switch, begin vibrates, end vibrates

Tolerance needs to be settable -> poti...

Maybe Cases to log the events. (Grades/Magnitude of variance)

Store data on EEPROM, with time...

Maybe RTC modules? Not for MK2

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