I got some very important questions which are required for building a robot from scratch. Suppose you are designing a robot with MCU, some TTL devices and servos (i.e.: HS-311 analog). Additionally you can think about having options for Stepper Motor (optional), which could be 6-12V. What will you use as battery?
1) A LiPo - Lithium Polymar Pack (7.4V)
2) NiMH. If so, 4 cells (4.8V) or 5 cells (6.0V)?
3) NiCad. If so, 4 cells (4.8V) or 5 cells (6.0V)?
7.4V or 4.8V or 6.0V. Whatever you use, can you draw a schematic for me specifying different voltages for Servo and MCU/TTL devices.
Consider the 2 schematic as follows:
Which one will you prefer for your robot? Schema - A, or B? And why? Please describe your explanation briefly. If you don't prefer any of these two, please prove your preferred design.Note: In "Schema - A", the last extra cell will be discharged fast. Because motors/servos requires more power than MCU or any other circuitry.