diff --git a/config/printer-wanhao-duplicator-i3-v2.1-2017.cfg b/config/printer-wanhao-duplicator-i3-v2.1-2017.cfg
index d7dd3738..505f62e4 100644
--- a/config/printer-wanhao-duplicator-i3-v2.1-2017.cfg
+++ b/config/printer-wanhao-duplicator-i3-v2.1-2017.cfg
@@ -65,6 +65,12 @@
 #     (like an upgraded hot end or a separate MOSFET for your heated bed), you may
 #     want to increase these values.
 #
+#     Note: Some Melzi boards were shipped with 10K pullup resistors
+#     instead of 4.7K. If the temperatures on your printer seem way
+#     off before running the PID tune, you may need to add
+#     "pullup_resistor: 10000" to both the extruder and the heater_bed
+#     config sections.
+#
 #   * [mcu] > serial
 #
 #     Enter the USB serial port of the printer in /dev/serial/by-id/ format
@@ -157,3 +163,5 @@ lcd_type: st7920
 cs_pin: PC1
 sclk_pin: PD3
 sid_pin: PC0
+encoder_pins: ^PA2, ^PA1
+click_pin: ^!PA3