diff --git a/e9e2d173359f7a1ef441f8d5cc9af0c1/description b/e9e2d173359f7a1ef441f8d5cc9af0c1/description
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+phase 1: init
+
+REQUIREMENTS
+* GPIO input
+* interrupts
+* PWM outputs
+    * bit-banged
+    * hardware