Powering a Rover 5 with a Lipo?
February 12, 2012
After reading these forums the last months, finally my first post :)
I've just received a Rover 5 (4 motors/encoders), red back spider and 4 channel motor controller from Yourduino. The Rover 5 comes with a case for 6 AA batteries, when I fitted 6 GP NiMH batteries the case nearly broke. It's a bit to tight. I would prefer to power it with a Lipo battery. I have no experience with these batteries, but they seem like a good solution. The question is which one should I buy, 7,4V or a 11,2V version? The red back spider manual says that it will work with a 7V source, but it is fitted with a LM2676 5V regulator. The datasheet of these regulators says that it needs 8V? Will the red back spider work with a 7,4V (800-1200mAh) Lipo? The red back spider will control and power 4 mini servo's, 2 SRF06 modules, a bunch of IR leds, and control the 4 channel motor controller. I'll use the 5V from the red back spider to power the logic for the 4 channel motor controller. And use the 7,4V from the Lipo to power the 4 motors. If I would use a 11,2V Lipo I would need a powerfull regulator to get the 11,2V down to 7,2V for the motors. I'll also use a LM1117 3,3V regulator to power the nRF24L01 module. Which connectors do you guys use to get the power from the Lipo to the different devices? Is there a name for these connectors? So I can start searching on ebay :) Any tips or comment are welcome...