Description

This is new device I have build for my wife for her to complete her physiotherapy. She wanted a device that provided fixed interval timing, a visual alert and a sound alert.

During the design phase the requirement was changed as follows:

• Fixed interval timing,
• Visual alert, Sound alert,
• Volume control,
• Vibrate alert,
• Ability to select alert type,
• Ability to mute sound and buzzer.

The solution uses a 08m in an existing case with a modified housing for the action button. I replaced the original pcb mounting the on/off switch and volume control in the same place as the original pcb. The solution is essentially:

• Power supply,
• Voltage regulator,
• Picaxe and the required resistors, Transistors and caps as appropiate,
• Switch with an appropiate mounting,
• Reuse of the speaker, on/off switch and volume control,
• Reuse of the high intensity LED and
• Reuse of a mobile phone vibrator

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