Heaptop is an htop-like memory monitor for ESP-IDF over the serial console: what is used and free per heap region and per task, health checks (free memory, fragmentation, stack margins, leak suspects, failed allocations), a clear command for fresh measurement windows, CPU stress for benchmarks, and a JSON Lines stream.
Task-free I2S speaker (audio sink) component for ESP-IDF v6.0.x, built on the modern i2s_std driver. Application calls a blocking i2s_spk_send_buffer() to hand off pre-filled audio buffers; there is no internal FreeRTOS task and no TX-side application callback — the blocking call's return is the sole completion signal.
Generic e-paper (e-ink) panel driver for ESP-IDF, exposed through the standard esp_lcd panel interface. Adding a display is one descriptor, adding a controller family is one file. Ships SSD1680 support and the 2.9" GDEY029T94 panel, with full and fast partial refresh.