Game telemetry: Minecraft data on physical hardware

SerialCraft 0.4.6-beta can send game state and events to a connected device using reserved channels beginning with mc_. They are independent of a specific I/O Module and can be switched on in the Laptop Events tab.

mc_health:18
mc_hunger:14
mc_weather:1

These are illustrative protocol messages, not actual recorded measurements.

Channel	Meaning	Range
mc_health	Rounded health points	0–1024
mc_hunger	Current food level	0–20
mc_time	Day time in ticks	0–23999
mc_weather	Clear, rain or thunderstorm	0–2
mc_damage	Damage event	1–32767
mc_death	Death event	1

The protocol reference lists every supported channel, including air, saturation and experience level.

Try it

1. Connect Arduino or ESP32 using USB or trusted local TCP.
2. Open the Laptop and enable a channel under Events.
3. Observe mc_ messages in the console or Visualize tab.
4. Parse complete lines in your firmware and ignore unknown channel names.

Telemetry is disabled by default to avoid surprising older firmware.

States versus events

States such as hunger can be safely replaced by the latest measurement and periodically resent. Events such as death represent a particular occurrence and should not be replayed as if they happened again.

There is no guaranteed physical acknowledgement for events. Lost connections can lose events, and sending multiple channels shares capacity with I/O commands and waveforms.

Use bounded firmware buffers and never use the reserved mc_ prefix for your own I/O Module channel. Wi-Fi messages are not encrypted. See Visualize for observing incoming and outgoing signals.