diff --git a/Grbl_Esp32/src/Machines/Root_Controller_Root_4_Lite_RS485.yaml b/Grbl_Esp32/src/Machines/Root_Controller_Root_4_Lite_RS485.yaml
new file mode 100644
index 00000000..ff5aa8ba
--- /dev/null
+++ b/Grbl_Esp32/src/Machines/Root_Controller_Root_4_Lite_RS485.yaml
@@ -0,0 +1,120 @@
+name: Root Controller 3 Axis XYYZ
+board: Root Controller
+
+i2so:
+  bck: gpio.22
+  ws: gpio.21
+  data: gpio.12
+
+axes:
+  number_axis: 3
+
+  x:
+    homing:
+      cycle: 1
+      positive_direction: false
+      pulloff: 2
+      feed_rate: 100
+      seek_rate: 800
+      square: false
+    steps_per_mm: 800
+    max_rate: 1000
+    acceleration: 50
+    max_travel: 220
+    soft_limits: true
+    gang0:
+      endstops:
+        dual: gpio.2:low
+      stepstick: # Motor Socket 1
+        disable: i2so.7
+        direction: i2s0.5
+        step: i2s0.5
+
+  y:
+    homing:
+      cycle: 2
+      positive_direction: false
+      pulloff: 2
+      feed_rate: 100
+      seek_rate: 800
+      square: true
+    steps_per_mm: 800
+    max_rate: 1000
+    acceleration: 50
+    max_travel: 278
+    soft_limits: true
+    gang0:
+      endstops:
+        dual: gpio.26:low
+      stepstick: # Motor Socket 2
+        disable: i2so.4
+        direction: i2s0.3
+        step: i2s0.2
+    gang1:
+      endstops:
+        dual: gpio.27:low
+      stepstick: # Motor Socket 3
+        disable: i2so.1
+        direction: i2s0.0
+        step: i2s0.15
+
+  z:
+    homing:
+      cycle: 0
+      positive_direction: false
+      pulloff: 2
+      feed_rate: 100
+      seek_rate: 800
+      square: false
+    steps_per_mm: 1000 # 50 Steps/mm * micro stepping * belt ratio 
+    max_rate: 1000
+    acceleration: 50
+    max_travel: 60
+    soft_limits: true
+    gang0:
+      endstops:
+        dual: gpio.14:low
+      stepstick: # Motor Socket 4
+        disable: i2so.14
+        direction: i2s0.13
+        step: i2s0.12
+
+# Motion Control:
+# 200pulses/rev stepper motor with SFU1204 ballscrew with a pitch of 4mm
+# equates to 50 Steps/mm * micro stepping
+
+sdcard:
+
+probe:
+  pin: gpio.33
+
+user_outputs:
+  digital0: i2so.17
+  digital1: i2so.18
+  digital2: i2so.19
+
+coolant:
+  mist: i2so.20
+  flood: i2so.21
+
+control:
+  reset: gpio.13:low  # Labeled GRBL RST
+  feed_hold: gpio.36  # Labeled HOLD
+  cycle_start: gpio.39 # Labeled START
+  macro0: gpio.34 # Labeled START
+
+spindle:
+  spinup_delay_ms: 10
+  spindown_delay_ms: 10
+  Huanyang:
+    txd_pin: gpio.17
+    rxd_pin: gpio.16
+    rts_pin: gpio.4
+    max_rpm: 24000
+    min_rpm: 1000
+
+homing_init_lock: true
+
+
+
+