There are a terrific many good issues that may be mentioned concerning the information-dense world we dwell in at the moment. There are additionally some downsides to having a lot info consistently vying for our consideration. Each notification and headline shifts our focus, making it simple to get sidetracked. Nice concepts for initiatives, issues we need to look into additional, and gadgets for our to-do lists are sometimes forgotten earlier than we now have an opportunity to make a remark.
A smartphone can assist, but it surely’s actually not ultimate for this goal. Unlocking the machine, loading the app, and typing out the word merely takes too lengthy. What we’d like is one thing purpose-built for capturing ideas — one thing that’s extremely simple and fast to make use of. That’s what Paul Lagier got down to construct along with his newest creation, referred to as Pala Be aware. To document a word with this pocketable machine, you want solely to press a button and say your thought out loud.
The machine was constructed with a single growth board (📷: Paul Lagier)
The {hardware} design of Pala Be aware is sort of so simple as its consumer interface. Lagier used the Waveshare ESP32-S3 1.54-inch e-Paper Growth Board, which incorporates the entire elements that the mission requires, together with a microcontroller, show, microphone, and speaker. A 500 mAh LiPo battery and an SD card had been additionally added to the construct for cellular, offline use.
Not like conventional LCD or OLED screens, the E Ink panel solely attracts energy when the picture modifications. As soon as textual content or interface components are displayed, they continue to be seen with out repeatedly draining the battery. This offers the machine a peaceful, paper-like look whereas additionally dramatically extending battery life — so that you received’t lose any nice concepts whereas it is charging.
To get the fitting appear and feel, Lagier discarded the inventory enclosure and designed a customized 3D-printed case from scratch. The enclosure snaps collectively with out screws, utilizing rigorously designed clips and alignment pins to carry every little thing securely in place.
That is all you want (📷: Paul Lagier)
Contained in the case is an SD card slot for native storage, a microphone for recording voice notes, and a small speaker for playback and system sounds. These sounds serve an necessary goal as a result of E Ink shows refresh comparatively slowly. Audio suggestions offers customers on the spot affirmation that button presses and recordings have been registered even earlier than the display screen absolutely updates.
The machine spends most of its time in an ultra-low-power deep sleep mode. Urgent a button wakes it immediately, and holding one other button data audio on to the SD card as a WAV file. As soon as the recording ends, customers can assign tags earlier than the machine powers again down.
Because the ESP32 lacks the horsepower to run speech recognition regionally, the Pala Be aware depends on cloud transcription via OpenAI’s Whisper API. Throughout scheduled or handbook sync periods, recordings are uploaded over Wi-Fi, transcribed, and saved again onto the SD card as textual content recordsdata. Lagier additionally added a light-weight browser-based dashboard hosted immediately on the machine itself, permitting customers to browse, arrange, and obtain notes from any laptop on the identical community.
Lagier is promoting the 3D design recordsdata, firmware, and an meeting information for about $6.50. The {hardware} prices roughly $30 extra, making this a reasonably low cost approach to seize your greatest concepts.