Maker builds ESP32 e-paper handheld that writes adventure stories with Gemini
Jeremy Ngai's device uses a 2.9-inch e-paper screen, a rotary encoder and a custom PCB, and is estimated to run about 20 hours per charge.
Maker Jeremy Ngai has built a handheld choose-your-own-adventure game powered by an ESP32 and Google's Gemini, according to hackaday.com. The build files have been released on GitHub.
The device pairs a 2.9-inch e-paper display with a rotary encoder for navigation and an RGB LED that provides mood lighting. Ngai estimates the handheld can run for about 20 hours per charge.
The hardware is built around a custom PCB housed in a 3D-printed enclosure. On first boot, the device is set up over WiFi through a captive portal, the same approach used by other ESP32 devices.
Once connected, the handheld contacts Gemini to generate a choose-your-own-adventure story, which is then read on the e-paper screen.
Build files
Ngai has published the build files on GitHub, allowing others to reproduce the device.
Quick answers
What does Jeremy Ngai's handheld device do?
It generates choose-your-own-adventure stories through Gemini and displays them on a 2.9-inch e-paper screen.
How long does the e-paper handheld run on a charge?
Ngai estimates it runs for about 20 hours per charge.
Are the build files available?
Yes, the build files have been released on GitHub.