boppo is a tablet with 10 light up buttons and a speaker but no screen. I have been working on it for over 4 years.
I have developed over 30 activities at this time but I am most excited to see what activities others will build for the tablet.
We are making an open source SDK for activity development which will be released before the tablet ships.
boppo's 10 light up buttons contain an RGB LED that can be changed to any RGB value but bright and saturated colors are best represented (e.g. black is just off and does not look black).
The buttons are quality mechanical keyboard switches (currently Gateron Green switches).
boppo is powered by an ESP32-S3 which is a microcontroller that has:
- a dual-core CPU running at 240 Mhz
- 512 kB SRAM
- At least 2 MB PSRAM
- Wifi and Bluetooth communication
boppo also has:
- a 3.5 Watt (max) speaker
- an NFC antenna that can read supported NFC tags
- a rechargable lipo battery
- a USB-C port (for recharging and potential data transfer such as firmware flashing)
The current activities and API are programmed in the Rust programming language. Additional language integration is possible in the future.
Easy to use functions and structs for receiving input and changing the button colors are provided.
I also developed a custom audio playback library called awedio to support streaming multiple sounds with effects simultaneously on an ESP-32 which is used in the SDK.
Made an activity that you think others will like? Let us know and we will consider including it in the global list shipped to all devices.
The device does not have any microphones or cameras and does not collect sensitive user information.
boppo source code is manually verified before being deployed to tablets. Since ESP-32 runs a minimal embedded OS, no untrusted 3rd party code is allowed to run (unlike Android/iOS).
The circuit board schematic will be available to the public. The awedio audio playback library has been open sourced and the SDK will be open sourced in the future. I plan to open source more of the platform over time.
Check out our FAQ, post a question in our reddit thread or email me at ben@boppo.com