Marlin Firmware adapted for FLSun QQS, Q5 and SR.

Marlin 2.1.2 is a bugfix release recommended for all users of Marlin 2.1 .

Download earlier versions of QQSPro, Q5 and SR Firmware on the Releases page and FLSUN Branch .

In this release you have the sources to build Marlin 2.1.x (If you want) and the "Ready-To-Use" firmwares for different hardware configurations (Stepper Motor Drivers, Extruder, HotEnd, Probe, ...)

To build Marlin 2.1 you'll need PlatformIO. Detailed build and install instructions are posted at:

Version	Changes & Fixes
1.3.0	Official Release Marlin 2.1.2
-----	News Features
-	📝 Add "instructions.md" file for a summary of the steps to follow.
-	🔨 MeatPack plugin active with OctoPrint.
-	🚀 ZV Input Shaping (No validated on Deltas)
-	📝 Update config comments
-	⚡️ Minor planner optimization
-	🚸 M306: Indicate MPC Autotune
-	✨ TFT_COLOR_UI async DMA SPI
-	🔧 Thermistor (66) sanity-check
-	🔧 Check Delta homing direction
-	🐛 Fix UBL regression
-	🩹 Constrain UBL within mesh bounds
-------	-------
1.2.10	Official Release Marlin 2.1.1
-----	News Features
-	📝 Update config file (FLSUNQ_Config.h) to add options: "s" Btt-screen, "m" MPC, "
-	📺 Mod to use a serial mode display like the BTT-TFT display family (TOUCH mode only) on the QQS/Q5 Stock without a Wifi module.
-	🔨 Set 32Steps in firmwares with TMCs in UART mode.
-	⚗️ Improve Temperature Model Predictive Control (MPC)
-	🔨 Enable Linear Advance for TMC2208 24533
1.2.9	Official Release Marlin 2.1.0

Note: the parts listed are related to Deltas printers but the whole Marlin 2.1.2 update is here.