DIY ‘Thought Catcher’ lets you record ideas at night without a phone
Key Points
- A Raspberry Pi‑based device called the Thought Catcher captures spoken ideas at the bedside.
- Press a button, speak, press again – the AI‑driven Whisper service transcribes the audio.
- Transcriptions are automatically uploaded to Notion as ideas, tasks, or notes.
- A beep confirms successful upload, eliminating the need for a phone screen at night.
- Build requires a Raspberry Pi, button, microphone, buzzer, and custom Python code.
- The creator plans to share full build instructions if interest grows.
- Future versions may be smaller or waterproof for use in the shower.
A maker has turned a Raspberry Pi into a screenless device called the Thought Catcher that sits by the bedside. Press a button, speak your idea, and the AI‑driven Whisper service transcribes the audio and uploads it to Notion. The system adds a beep to confirm completion, letting users capture thoughts without reaching for a phone and risking sleep disruption. The device requires a Raspberry Pi, a button, a microphone, a buzzer and custom Python code. Future versions may be refined, and the creator plans to share build instructions if interest grows.
What the Thought Catcher Is
The Thought Catcher is a DIY gadget built around a Raspberry Pi that helps users capture fleeting ideas while in bed. By placing the device near the pillow, a user can press a button, speak a thought, press the button again when finished, and have the spoken words turned into text.
How It Works
When the button is pressed a second time, the audio is processed by the open‑source Whisper.cpp service, an AI model that converts speech to text. The transcription is then sent to a Notion database, where it appears as an entry labeled as an idea, task, or note. A brief beep lets the user know the upload succeeded.
Why It Matters
The device eliminates the need to reach for a phone in the dark, reducing exposure to a lit screen that can interfere with sleep. It also removes the temptation to browse social media when a thought strikes, keeping the focus on capturing ideas.
What You Need to Build One
To create a Thought Catcher, you will need a Raspberry Pi, a physical push button, a microphone, a buzzer, and Python code to tie everything together. The maker has not released detailed instructions yet but has indicated they will share them if there is sufficient interest.
Future Outlook
The creator is still refining the prototype, and future versions may be smaller or even waterproof for use in the shower, where ideas also tend to arise. The project highlights how inexpensive hardware and AI services can be combined to solve everyday problems.