Seeed Studio has revealed the TRMNL 7.5" DIY Kit, a 7.5-inch e-ink display kit compatible with Home Assistant and Arduino, offering a cost-effective solution for smart home enthusiasts. It includes a 7.5-inch 800x480 monochrome e-ink display, XIAO ESP32-S3 PLUS driver board, 2000 mAh rechargeable battery, and 10cm FPC extension cable. It is currently available for preorder for under $45.
Overview of the TRMNL architecture, detailing the device, server, plugins, and data flow. It emphasizes a device-initiated communication model for security and privacy, and a system designed for low cost and perpetual service.
