diff --git a/examples/osd/arduino-settingsmanager/README.md b/examples/osd/arduino-settingsmanager/README.md
index 52d697a48..b32feeb3b 100644
--- a/examples/osd/arduino-settingsmanager/README.md
+++ b/examples/osd/arduino-settingsmanager/README.md
@@ -13,35 +13,39 @@ picocom -c -b 38400 --omap crcrlf /dev/ttyUSB0
 ? [ENTER]
 
 Available commands:
-
 ?: shows this help
-
 ccathresholds <threshold: change cca thresholds -91 to -61 dBm (default -77)
-
 exit: exit shell
-
 help: shows this help
-
 kill <command>: stop a specific command
-
 killall: stop all running commands
-
+macconf <conf>: change mac layer 0 -> do nothing; 1 -> Radio allways on
 null: discard input
-
 panid <0xabcd>: change panid (default 0xabcd)
-
-ps: list all running processes
-
 quit: exit shell
-
 reboot: reboot the system
-
 rfchannel <channel>: change radio channel (11 - 26)
-
 saverfparam <> save radio parameters txpower, channel, panid to eeprom settingsmanager
-
 txpower <power>: change transmission power 0 (3dbm, default) to 15 (-17.2dbm)
 
+example merkurboard set rf-parameter:
+-------------------------------------
+
+panid 0xabcd
+rfchannel 11
+saverfparam
+
+example old merkurboard (atmega128rfa1) set rf-parameter:
+---------------------------------------------------------
+
+macconf 1
+*) switch power off/on
+panid 0xabcd
+rfchannel 11
+saverfparam
+macconf 0
+*) switch power off/on
+
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 quit picocom, you need to press Ctrl-a , then Ctrl-q
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@@ -52,8 +56,10 @@ avrdude -p m256rfr2  -c stk500v2  -P /dev/ttyUSB0 -b 57600 -U eeprom:w:eeprom_im
 
 todo: 
 
-bugfix: txpower <power>: change transmission power 0 (3dbm, default) to 15 (-17.2dbm)
-make a contiki app for easier inegration in projects
+atmega128rfa1 reboot dont work correct @ fixme
+
+if rfsleep mode, it is not possible to set panid @ fixme 
+(workaround: set macconf 1, power off, power on, panid 0xabcd, saverfparam, set macconf 0, power off, power on)
 
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