diff --git a/client/client/lib/espnow/README b/client/client/lib/espnow/README
new file mode 100644
index 0000000000000000000000000000000000000000..55f89c0b2141283b3dd2d94c882cdaccbe2064fe
--- /dev/null
+++ b/client/client/lib/espnow/README
@@ -0,0 +1,11 @@
+# basic usage
+
+To send data using espnow, create a new Message object,
+then use the add_data(value, identifier) method for every value
+to fill the message.
+when every value is added, use the send() method to send the data
+to the host (fipy). If the esp client has never recieved a config
+message from the host, it will instead broadcast the message.
+
+---
+right now, it is not possible to add more than 10 values.