Otto DIY+ (PLUS) (https://www.thingiverse.com/thing:2398231) is the improved and advanced version of original Otto DIY ("Otto DIY with steroids"), have the same base features DIY robot + Bluetooth control + graphical programming + Android APP (already Beta)+ metal gear servo motors + rechargeable batteries + modes activation + sensors + light moods + other outputs +...?
more info here: https://www.hackster.io/ottoplus/otto-diy-33406c and files here https://github.com/OttoDIY/PLUS
The exciting part is that we are doing open development with everyone around the world, not only with experts, makers and hackers; you can join us with feedback, comments in social network, testing or any other contribution that you might think of.
Just post some comments and ideas.
I tried to build my own OTTO. For the first step I had to solder out the power-connector from the shield. Otherwise I had no chance to insert the shield into head's part. After connecting all connections I recognised that it seems to be necessary to solder the plus- and minus-cable from the battery case even though there would be to two female dupont connectors at the end of the cable. Aren't there any pins at the shield that can be used for power connection?