@ServiceXp you said in this post: That was it!!!!! I tried 22uF, was still doggie, so I thought why not move up to 47uF wink and what do you know, that seems to be the winning value. I have some more testing, but looking pretty good so far. This sounds to me that the issue is solved... I can imagine that 1.4 requires a bigger cap while 1.3 doesn't. 1.4 uses auto acknowledge which can send burst packets. This could put a bigger load on your power supply.

@thumper I am not sure about LiPo and Solar or battery power in general. I had to use two separate 5v power supplies, one for the Arduino and one for the servo. Otherwise the pro mini would reset once the servo kicked in to open/close the blinds. My sketch never sleeps it always listens for commands sent from the Vera, either manually or PLEG commands at dawn and dusk. Hardware List 1 - Arduino Mini Pro v3.3 1 - 220uF Capacitor (NRF24 across 3v and GND 16v+ rating) 1 - 470uF Capacitor Optional (Servo across 5v and GND 16v+ rating) 1 - Servo (Micro 25.0 oz-in [1.80 kg-cm] minimum) for selectblinds.com 1" Faux Wood Blinds 43"x38" 1 - NRF24L01 Wireless Transceiver Module (flat or antenna version) Beaware of power limitations when using the NRF24L01 antenna with LNA+PA 1 - Kimbrough Internal Rotary Drive Control System 500 NIB - connects servo to blind rod (may differ for you blind type and servo used) http://www.ebay.com/itm/291084936296?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649 1 - DC power supply you may need to step-up or step-down for the servo 5v and 3.3v for the NRF depending on the Arduino board you use http://www.ebay.com/itm/321408108698?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649 is the one I used to power Arduino and servo separately. If you are successful with LiPo and Solar combination, let us know, as it would be nice no to have the power wires hanging. Thanks