Almost out of stock!


I have only 1 RBS v2 in stock and 3 µBotino v2. I have ordered new boards, but it will take about a month to get here from China. But the new boards will have some improvements:

The Robot Builder’s Shield V3:
– added jumpers for the user to set the control mode for the motors, either 2 pin mode like the previous version, or standard 3 pin mode, at the expense of losing 2 servo pins

Schematic and board:

 

The µBotino V3:
– replaced the SPDT power switch with a DPDT switch so the servos and motors do not get power that leaks through the voltage regulator when powered through the FTDI cable
– repositioned parts on the board, mainly swapping power connector with power switch positions, moved J2 near J1
– added 2 pin header for optional different servo power than for the motors, remove J1 if used
– moved some silk screen text to be easier to understand the pin name/number for the lower part of the board

Schematic and board:

 

Things that were too difficult (or impossible in the current format) to do:

The RBS V3:
– could not separate the power for the motors from the power for the servos
– did not add a LDO V-reg to replace the Arduino 7805, if one needs it, can do it in the prototyping area

The µBotino V3:
– did not have enough space to add motor control mode selection jumpers like I did to the RBS V3

All things considered, I think I’m at the last version of these boards, no more modifications, unless some stupid error comes through. I hope not… Now it’s µServotino’s turn to get a new version.

About Gabriel (Ro-Bot-X)

Robots, nature, bees, and gardening, how do they mix together? After too much indoor activities one needs to get out and breathe! Harvest natural energy and create a little paradise. And ask the robots to help, of course.
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