diff --git a/README.md b/README.md
index 1ff8211..12502b7 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,19 @@
-### This repo contains resources of the adapted scissor for data collection
+### This repo contains resources of the adapted scissor (AS) for data collection
 
+The expected AS is comprised of several part: 
+- scissor with handle easy to hold; 
+- circuit box with switches.
+
+Functoins of each parts:
+
+- scissor is integrated with the IMU performing cutting/holding the cherry tomato.
+- switches + esp32, read data from IMU, read switch state, set scissor enable signal, etc.
+
+Hardware wiring [here](https://nicecart-my.sharepoint.com/:p:/g/personal/zheng_liu_nicecart_ai/IQAd1vjTOFRTQJdIf7uh9ybCASTbYUrugCMrXxhclWS-Yn0?e=5wVPiN).
+
+### Data Collection Workflow:
+1. The AS is connected to the PC with usb. The D405 is activated. AGV connected to the PC.
+2. Start picking process. Start data recoding, AGV moving forward.
+3. Cherry tomato within reachable distance, pause the AGV.
+4. The operator holds the AS, and picks up the potato.
+5. Next loop ...