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.
Point-to-point UDP datagram transport for ESP-IDF v6.0.x. One socket, one peer, one stream: a 12-byte header with sequence number and session, strict validation of every received datagram, zero-copy send and receive, and a receive timeout that never ends early. No tasks, no callbacks, no buffering, no retransmission: it reports loss and restarts, you decide.