In the meantime I named the robot astronaut Cosma, a maiden name, ancient Greek for Cosmos. Below you'll find a more specific design study. I think I will 3-D print the main body and the head. I've furthermore tested a FSR (force sensing resistor) as a kind of pain receptor and the ArduEye.
Fig. 1 Silicone elastomer based skin with FSR array as pain receptors
Fig. 2/3 Neck rotation
Fig. 4 Head rotation
Fig. 5 Arduino Mega connected to ArduEye
Nearly. I plan to integrate
Nearly. I plan to integrate all on one board, including the ATmega. The two microphones need amplifiers to feed into analog inputs of the MCU. And we have a temperature sensor: DS18B20. Depending on the number of FSR’s we might run out of analog input pins and need an according solution for that. To lay out such a board and populate it, will be a big work. I’ll work on that after everything is running with the breakouts.
Please post your results with the RTC and thanks for the support 
