diff --git a/luddite/readme.md b/luddite/readme.md
index 5cc64b1..2ece616 100644
--- a/luddite/readme.md
+++ b/luddite/readme.md
@@ -4,6 +4,32 @@ http://www.40percent.club/2018/08/luddite-2.html
 
 [How to order PCBs from gerber files](http://www.40percent.club/2017/03/ordering-pcb.html)
 
+Mosfet on B5 to control backlight.
+
+BOM
+
+    1	Pro Micro
+    2	12pin SIP headers, or 1 24 pin machined pin DIP socket
+    61	1n4148 diodes, save the cut off leads for use with machined pin socket
+    61	switches
+    1	mini USB connector
+    4	2U PCB mount stabilizers
+    1	6.25U PCB mount stabilizer
+
+Needed if you want LEDs
+
+    61	LEDs
+    61	Resistors for LEDs. Use online LED caculator to choose value
+    1	FDS6630A or DMN3018SSS-13 SOIC FET
+    1	100ohm resistor
+    1	100Kilo ohm resistor
+    
+Optional
+
+    1	5.2x5.2mm tactile Reset switch
+    1	USBLC6-4SC6 ESD protection
+    8	WS2812B RGB LEDs
+
 EasyEDA ordering info:
 
 PCB