SparkFun will be closed Nov 26th and 27th for the Thanksgiving holiday. Orders placed after 2:00pm MT on the 25th will ship out Monday the 30th.

Member #366112

Member Since: October 2, 2012

Country: United States

  • Something I’ve always found infuriating with motor-powering boards is that so many of them are designed to run off 9V and come with a 9V snap but there isn’t a 6AA battery holder to give a useful amount of battery life– 9V batteries use six tiny-capacity cells and aren’t really suited for that kind of consumption, let alone powering a Pi for a useful amount of time. At absolute best you get two hours of life per battery, and that’s with non-rechargeable Lithium batteries, powering only the Pi, assuming they’re newly-made and a good brand. A 6AA lasts 2-3x as long within the same type category (Alkaline, Lithium, various rechargeables), as well as being cheaper to fill and sometimes easier to get the batteries for (took me three days to find 9V batteries in one city, never going there again). Sure, it’s easy enough to make a 6AA pack with a 4AA and a 2AA pack, but sometimes you want a nicely mountable single unit so your project looks pretty or so you have to tap less screw holes or for a hundred other reasons. To the point of the actual product, I have plans to acquire one when I have a new Pi and my box-o-NXT parts, though a straight USB version of this board would be a wonderful thing to get around a broken NXT brain unit. TL;DR Version: 9-volt board design is kinda dumb for something that drives motors and comes with a battery snap because nobody sells a 6AA/C/D pack with a 9V snap, and someone should make a USB version of this thing because there’s no good solution for that yet.

  • Alright, thanks; another question is if it can be used to directly interact with a sketch directly via serial, not particularly experienced with the programming side of ‘bot building.

  • How would one go about connecting this to an Uno R3 board (as a serial connection, not with virtual serial)? Also using a motor shield, building a simple BT rover with it.

  • I believe what he means is a QR code, not a code on multiple planes.

No public wish lists :(