Lets you control your Smartphone functions, Google Assistant etc. without touching or any buttons ever, right from your mask by moving only a single face muscle, the Masseter, it is the jaw muscle which you use for chewing or you flex when you are angry! The gesture can give you an angry badass look! This keeps you from repeatedly touching your phone or the earphones. Runs on CR2032 button cell connects with Smartphone via BLE and in HID mode. It is an attachment hence can be fit onto any mask. It has a neodymium magnet based latching contraption. Can be used as an assistive device too.
Batteries and Battery Accessories / Batteries
Evaluation, Demonstration Kits, Boards and Modules / Evaluation Kits, Boards and Modules
Its hard to operate a multi functional input device without proper feedback to indicate the acknowledgement of each input. To ensure the a better experience I added a flat coin vibrator motor to the mask attachment.
Waiting for the Bluetooth Low Energy chip Ti CC2540 to arrive. This SoC has an onboard controller based on 8051, hence no need of additional microcontrollers, and also can be powered from just a button cell preferably CR2032. Designing a 3D enclosure with Neodymium magnet based easy attachment in mind. Any contribution or involvement is welcome. Suggestions for design improvements are appreciated.
A different approach was tried to keep the form factor of the mask attachment prototype small. This way it was split into two parts: One with Attitny piezo transducer CR2032 cell and 433Mhz Tx latched with Neodymium onto the mask;
the other part acted as a base station with 433MHz Rx connected to ESP32 which connects in Bluetooth HID to the Phone. Fairly usable prototype from the form factor point of view of the mask attachment.