diff --git a/README.md b/README.md
index fc7f534..bfdd463 100644
--- a/README.md
+++ b/README.md
@@ -25,3 +25,9 @@ Features to be implemented.
 * Use masks to mask unilluminated CCD areas.
 * Investigate automatic submission of IOD measurements to [SeeSat-L](http://www.satobs.org/seesat/).
 * Migrate user settings to a configuration file.
+
+## Run acquisition at startup
+
+1 Add user to video group (`sudo adduser <username> video`).
+2 Add video device to udev rules (add `SUBSYSTEM=="video1", GROUP="video", MODE="0660"` in `/etc/udev/rules.d/10-webcam.rules`).
+3 Create start up script in `/etc/init.d`. Call capture script as user with `su <username> -c "capture_1.sh"`.