diff --git a/Electrical/README.md b/Electrical/README.md
index 7b4e7326..c749a85b 100644
--- a/Electrical/README.md
+++ b/Electrical/README.md
@@ -5,12 +5,26 @@ Here are links to the different board designs together with a short summary.
 
 ## Board 1
 
-This project currently contains only one [board design](Board_001). It
+The project's original [board design](Board_001). It
 
 * is based on the ESP8266 chip.
 * is powered by USB.
 * uses a very simple voltage divider to demodulate the M-bus signal.
+* has shematic and pcb design only available as finished pdf/png files.
 
 ### Status
 
 Prototypes have been made and some people have started using them(?).
+
+## Board 2
+
+This [board design](Board_002) is a newer alternative to the original. It
+
+* is an Arduino shield.
+* uses the industry standard TSS721 chip to interface the M-bus.
+* is optically isolated.
+* has shematic and pcb design available in editable [KiCad](http://www.kicad-pcb.org/) source files.
+
+### Status
+
+Unfinished, just started.