diff --git a/Laser-Controller.md b/Laser-Controller.md
index 1215df7..2cc9c6b 100644
--- a/Laser-Controller.md
+++ b/Laser-Controller.md
@@ -47,4 +47,13 @@ The command to connect with Minicom is:
 
 The device name/number may change.
 
-Once in minicom, press `CTRL+a`, `z` then `e` for echo mode.
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+Once in minicom, press `CTRL+a`, `z` then `e` for echo mode. 
+
+# Controlling the Lasers in Julia
+
+The lasers can be controlled directly via the serial port, or via wrapper functions in Julia.
+
+1. Open a new Julia REPL by opening the terminal and typing `julia`.
+2. Type `]` to enter the `pkg>` prompt, then type `activate Photoacoustic`.
+3. Press backspace to exit `pkg`, then (when back at the `julia> prompt`), type `using Photoacoustic`.
+4. Now, you can use Julia to turn the lasers on and off with the commands `blueOff()`, `blueOn()`, `greenOff()`, ..., and so on.  The functions take no arguments.
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