Add resonance examples

Author: N3MI-DG

docs/calibration/tuning.md

@@ -1,4 +1,35 @@
 
 ## Resonance
+Typically, each toolhead board will have its own accelerometer for resonance testing. 
+Because of this, each accelerometer needs to be given a unique name so that it can be called directly.
+
+``` cfg title="Example of tool's Nitehawk36 ADXL345 configuration."
+[adxl345 T0]
+cs_pin: NHK0:gpio27
+spi_software_sclk_pin: NHK0:gpio18
+spi_software_mosi_pin: NHK0:gpio20
+spi_software_miso_pin: NHK0:gpio19
+axes_map: x,z,y
+```
+
+Klipper's [resonance_tester](https://www.klipper3d.org/Config_Reference.html#resonance_tester){target="_blank"} module only supports a single `accel_chip` to be set at a time. This means that any time you want to run input shaper, the accelerometer chip needs to be defined so that the correct toolhead board is being used. 
+
+You can swap the accelerometer manually by changing the `accel_chip` in [resonance_tester](https://www.klipper3d.org/Config_Reference.html#resonance_tester){target="_blank"}.
+
+``` cfg hl_lines="4" title="Example [input_shaper] & [resonance_tester] sections."
+[input_shaper]
+
+[resonance_tester]
+accel_chip: adxl345 T0
+probe_points: 175,175,20
+sweeping_accel: 400
+sweeping_period: 0
+```
+
+To run resonance tester without changing the `accel_chip` in [resonance_tester](https://www.klipper3d.org/Config_Reference.html#resonance_tester){target="_blank"}, you can specify the accelerometer in the macro's parameters.
+
+``` cfg { .copy title="Shaketune input shaper example." }
+AXES_SHAPER_CALIBRATION ACCEL_CHIP="'adxl345 T0'"
+```
 
 ## Tool Change Speed