Prerequisites

Bill of Materials

Recorder

1) a Raspberry Pi model with wireless connectivity, there are currently 3 options:

• raspberry pi 3
• raspberry pi 4
• raspberry pi zero w

2) an rpi case that lets you access the GPIO pins, e.g. the pibow

3) any reputable class 10 Micro SD card card, 4GB minimum, such as this sandisk model, note that

• note that the maximum size supported is 32GB
• maximum read/write speed is about 25MB/s so there is no point spending on UHS3 cards

4) An MPU-6050 IMU, one per raspberry pi

5) i2c cables which are also known as

• jumper jerky
• dupont cables

6) a lightweight but secure mounting mechanism for attaching the board to the seat without weighing it down

• the best mechanism to use will vary with seating material, examples include

  • foam tape
  • dolls house wax

Analyser

1) A computer attached to the same network as the raspberry pi

Getting Ready for Installation

Install a SSH (Secure Shell) Client

SSH is secure shell, it's a standard way to securely login to a remote (*nix) host.

Linux users should need no introduction to this.

MacOS users can familiarise themselves with the terminal app

Windows users have to install a 3rd party client such as MobaXterm

Android users can consider an app like connectbot or one of the many options on the play store

iOS users no doubt have something appropriate in their app store (sample google search).

Install a SCP (Secure Copy) Client

scp provides a simple and easy way to copy a file over a ssh connection, it is the recommended way to transfer files to and from your rpi.

For Linux and OSX users, scp is available via your shell.

For Windows users, MobaXterm provides a drag and drop file transfer facility. WinSCP is an alternative which provides a Windows Explorer style interface.