Phone Prop Project
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Phone Prop Project

by Circa779 on Tue Feb 26, 2019 1:15 pm

Hey everyone.
Not sure if I'm posting in the right place but I need some help in creating a prop. Possible looking for someone to help guide me in creating this project. I'm trying to incorporate a few elements into a dummy iPhone. And need some help in finding how to go about it.

1. Was hoping to have the phone periodically vibrate to grab someones attention.
2. Need an accelerometer to activate a message played on an internal speaker once picked up.

Any guidance would be greatly appreciated. In terms of the right combination of products to create this experience.

Many thanks!

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Joined: Sat May 20, 2017 7:40 pm

Re: Phone Prop Project

by adafruit_support_mike on Wed Feb 27, 2019 12:48 am

The major challenges will be to keep things small and low-voltage. Cell phones are densely packed, and the electronics are actually pretty small.

You'll probably have the most luck using an ItsyBitsy M0:


and an I2S speaker amplifier:


Depending on how much audio you want to play, you might need an SD card and adapter:


The ItsyBitsy has a 2MB Flash memory built in, and that can hold some audio clips, but that isn't enough for large audio files.

The LIS3DH accelerometer is small and low-cost:


The ItsyBitsy can't handle enough current to drive a vibration motor directly, but it can control the DRV2605 haptic motor controller:


and we have compatible vibration motors in the shop:


Everything else will need to be battery, but all the boards listed above will operate from a 3.7V LiPo.

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Joined: Thu Feb 11, 2010 2:51 pm

Please be positive and constructive with your questions and comments.