diff --git a/logdata_visualization/README.md b/logdata_visualization/README.md
index 8d5e348..90dbd9c 100644
--- a/logdata_visualization/README.md
+++ b/logdata_visualization/README.md
@@ -5,4 +5,30 @@ This processing software can display log information from the bobbycar in realim
 It is used alongside the controller_teensy firmware.
 Log information is constantly printed out on one serial interface and can be written either to an sd card or transmitted via rf or bluetooth.
 
-![screenshot](Screenshot.png "Screenshot")
\ No newline at end of file
+![screenshot](Screenshot.png "Screenshot")
+
+
+## OpenLog
+
+Tutorial for OpenLog Serial SD Card logger: https://learn.sparkfun.com/tutorials/openlog-hookup-guide/configuration-file
+
+Only works reliable on 3v3.
+Using 5v restarts occur (prints 12> over serial and everytime a new file is created).
+
+
+my CONFIG.TXT content:
+115200,26,3,0,1,1,0
+baud,escape,esc#,mode,verb,echo,ignoreRX
+
+
+## HC12 433MHz Module
+5v or 3v3.
+Bridge Set pin to ground and power up to enter setup mode.
+Use Arduino IDE to send commands via serial terminal with 9600 Baud.
+AT+RX shows current settings.
+
+Use following commands to setup:
+AT+B115200
+AT+C002
+
+Using channel 2 instead of 1, because 1 receive didnt work with two computers.