diff --git a/hardware.md b/hardware.md
index e3b5c15..ed9680a 100644
--- a/hardware.md
+++ b/hardware.md
@@ -20,6 +20,8 @@ Machines
 
 [Pick and Place Machine](https://github.com/richardklingler/openpnp) by Richard Klingler
 
+[OpenKayo](https://github.com/superhouse/openkayo) by Jonathan Oxer - a GCode protocol converter to allow Kayo A4 machines to be controlled by OpenPnP.
+
 Motion Controllers
 ------------------
 
@@ -64,4 +66,4 @@ Stores
 ------
 
 [RobotDigg](http://www.robotdigg.com/) sells a variety of pick and place specific hardware such as heads, nozzles, and feeders along with lots of general robotics and CNC equipment.  
-[microsmt](https://www.microsmt.com.cn/) sells a variety of pick and place and OpenPnP specific hardware.
\ No newline at end of file
+[microsmt](https://www.microsmt.com.cn/) sells a variety of pick and place and OpenPnP specific hardware.