TMC2209 V1.2 VS TMC2208, more of these functions:
1. Blocking rotation detection
Stallguard–TMC2209 provides a load and loss of speed detection technology
2. Current dynamic adjustment
Coolstep–TMC2209 provides a current dynamic regulation technology that saves up to 75% of electrical energy.
– stealthChop2 – for quiet operation and smooth motion
– spreadCycle – highly dynamic motor control chopper
– coolStep – current control for energy savings
– stallGuard4 – sensorless motor load detection
The hardware of the modes UART,DIR/STEP is the same. If you need to use UART mode, just need to modify the firmware.
BIGTREETECH TMC2209 V1.2 UART firmware :
1/2/4/5/6 PCS TMC2209 V1.2 or TMC2208 V3.0 Stepper Motor Driver + Wire (According to your purchase options)