A Claude usage dashboard on the M5Stack Basic: plan limits and API spend on your desk
How I turned an M5Stack Basic v2.7 into a desk dashboard for Claude: the 5-hour session and weekly limits of Pro and Max accounts, spend for API organizations, and tokens per day. It covers the PC bridge that collects the data, the zero-configuration USB and Bluetooth links, the firmware, and the DMA race that drew diagonal streaks across the screen.