This release changes the default pins for RP2040 boards.
If you are using a RP2040 in a finished build, do not reset the pin config to the new defaults!

BREAKING CHANGES:

• RP2040 boards use a new default pin configuration, see docs for details.
  Existing boards will not be automatically updated, preserving backwards compatibility.

New Features:

• PID for automatic fan control: automatic mode no longer turns on full blast when you make tea in an adjacent room
• fan kick-start options, see fan_kick_start_* and fan_power_minimum in docs for details
• NEVERMORE_TEMPERATURE_WAIT: useful for waiting for a given chamber temperature
• print_mode_min_bed_target: set a min bed temperature for inferring print-mode
• board support for Pico (non-W)
• board support for Fystec's custom board (part of the Venture XL)
• sensors_voc_expected_variance_independent low level option, see docs

New Features - Experimental:

• ZMOD4410 support
• pins and kipper commands for photo-catalytic and cooler control

Changes:

• update-ota will no longer ask if you wish to reset the pin config; use ./pin-config.py instead.

Fixes:

• servo config not resetting when requesting hardware reset
• SPI bus could be incorrectly inferred from pin

Full Changelog: v0.16...v1.0

This is a major update. Be sure to reset the policy defaults after updating using the update tool.

Update the controller as well. This is required by all updates unless stated otherwise.

Here's a subset of all the changes.

Changes:

• fan_policy_voc_improve_min is now disabled by default
• fan_policy_voc_passive_max default has been increased to 250 from 200

New Features:

• USB support for Klipper
• Automatic print detection (NEVERMORE_PRINT_{START,END} GCode macros have been deprecated)
• Multiple Nevermore support for Klipper
• Automatic controller restart on hangs
• Vent servo support for upcoming StealthMax v2
• Official support for waveshare-rp2040-zero boards
• SHT4x sensors supported

Improved:

• Additional documentation
• Tweaked calibration guide

Fixes:

• voc-improve-min triggering when disabled and intake equaling exhaust
• reboot command potentially hanging
• CST816S occasionally not being detected

New Contributors

• @ksummers92 made their first contribution in #18

Full Changelog: v0.15.1...v0.16

Fix voc_improve_min policy activating when intake < exhaust.

Full Changelog: v0.15...v0.15.1

New:

• G-Code command NEVERMORE_SENSOR_CALIBRATION_CHECKPOINT for forcing a immediate checkpoint (remember to give it 10 seconds to save).

Improved:

• RPM measurements now have some basic EMI mitigations to improve accuracy. Helps deal with EMI induced by the fan PWM wire in some setups. Thanks to @Mario1up on the Discord for identifying the root cause of this issue.
• NevermoreSensor is now much less verbose when listing ancillary fields. It will now only display temperature, humidity, pressure, VOC index, and the raw VOC value.

Full Changelog: v0.14...v0.15

New:

• You can now use any pins for the tachometers. Non-PWM-B pins will be manually sampled by the MCU.

Changed:

• Having multiple tachometers will no longer consume additional resources.

Fix:

• Missing validation for the clock/data pins in partially defined I2C buses.

Full Changelog: v0.13...v0.14

New:

• Pins can now be re-configured without custom compilation using /tools/pin-config.py

Changed:

• Display plot now faintly highlights the nominal [45, 200] VOC region. See voc.adoc for details.
• .uf2s file names now specify what board they're intended for.

Fixed:

• RPM on display now works properly
• The bootloader will no longer idle-reboot if it is modified by an update. This ensures you can resume an interrupted update, so long as nothing reboots it before the update is complete.

Full Changelog: v0.12...v0.13

** Applying this update over v0.10/v0.11 will reset your persisted settings and sensor calibrations. **

Please recalibrate your sensors after applying.

This is a side-effect of having to move the settings store region, pardon. This should not happen again in future updates.

Features:

• If VBUS is powered (e.g. plugged in via USB) then wait 1s for a serial connection to avoid dropping early messages
• Cycle through multiple save slots in flash. Assuming you're not changing settings unusually often, your board's flash will wear out in ~10+ years instead of ~2-3 years.
• Bootloader will rapidly flash LED when waiting for connection.

Fixes:

• Fix potential settings corruption from btstack's flash store overlapping our persistent store.

Very minor release.

New feature:

• BMP280 are now supported. Not because they are any good for this use case, but because it's handy to know when you accidentally got a BMP280 instead of a BME280.

Full Changelog: v0.10...v0.11

Everyone should go through the basic startup guide again, there's some new macros that you'll probably want to include in your setup.

New Features:

• Alternate address support for BME280, BME68x (fixes Isik's 2-in-1 BME280 sensors)
• Alternate UIs
• Persistent settings & sensor calibrations
• VOC gating threshold customisation & overrides
• SGP30 support (early adopter)
• USB serial device, get easy* console output
• More Debugging Stuff You Don't Care About(TM)
• Stuff I've Forgotten Because This is Too Big of A Release

Full Changelog: v0.9.2...v0.10

The automatic fan control is now much less jumpy, and is less likely to trigger at startup and from random fluctuations.
Specifically, the automatic fan policy for fan_policy_voc_improve_min has changed from 5 to 25. That's it. That's the change.

Full Changelog: v0.9.1...v0.9.2