diff --git a/README.md b/README.md
index 6a80746..e4d48b6 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,7 @@
 
 ```
 DAUGHTER (marking right way up)
+
 JP2 [VCC][GND]
 
 MAIN (antenna on the left)
@@ -18,6 +19,14 @@ MAIN (antenna on the left)
 
 (○) TP7/GND
                       (○) TP5/GPIO0
+
+WIRING
+
+GPIO0 ➙ GND (Bootloader mode)
+TX    ➙ Programmer's RX
+RX    ➙ Programmer's TX
+VCC   ➙ +3.3V
+GND   ➙ 0V (GND)
 ```
 
 ## Schematics