diff --git a/README.org b/README.org
index 81994f8..5bd6013 100644
--- a/README.org
+++ b/README.org
@@ -39,12 +39,18 @@
    - other pin of each to 16, 17, 5, 18
 
 * Arduino sketch
+** dependencies (libraries)
+1. OSC (filter by "open sound control")
+2. MPU6050
+
 ** calibration
    - IMU_Zero
+ 
 ** testing, prototypes
    - kbdtest
    - keypadtest (kbd matrix test, didn't work)
    - proto32, proto32plot, osc32, osc32h, osc32hh
+
 ** Final sketch
    - osc32final