Arduino is a great starting point for electronics, and with a motor shield it can also be a nice tidy platform for robotics and mechatronics. Here is a design for a full-featured motor shield that will be able to power many simple to medium-complexity projects.
2 connections for 5V ‘hobby’ servos with high-resolution dedicated timer – no jitter!
Up to 4 bi-directional DC motors with individual 8-bit speed selection (so, about 0.5% resolution)
Up to 2 stepper motors (unipolar or bipolar) with single coil, double coil or interleaved stepping.
4 H-Bridges: L293D chipset provides 0.6A per bridge (1.2A peak) with thermal shutdown protection, 4.5V to 36V
Pull down resistors keep motors disabled during power-up
Big terminal block connectors to easily hook up wires (10-22AWG) and power
Arduino reset button brought up top (Diecimila only)
2-pin terminal block to connect external power, for seperate logic/motor supplies
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.
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It would be nice to use this board on simple robot platforms. I noticed
the 6 analog vias. Can you just insert a female header there
to get access to the arduino analog pins? Also, by my count there
are 3 ununsed digital pins. Is that right? Can you get access to them
Nice design. Thanks for making it available.
yes the 6 analog pins are available and theres a spot you can get to them (and 5v, ground rail) for simple sensors, etc.
there are a few unused digital pins other than the INT0 pin, they’re not easy to get at — wasnt much room 🙁
where do i get this and how much. what all can i do with it.
quick delivered – 10 min to solder, placed on arduinos top, connected to 2 steppers and everything works. 1 step to diy a panobot. i’m an absolute dummi in electronics. if anyone around here, who plans similar things – nice to hear about ….
Soldered up mine today, but didn’t get it to work with my old ATMega8 arduino. Get a freeze when initiating the AF_lib. Guess I have to upgrade to Diecemila if I want to play with this thing…
tech support questions -> forums!
I can’t seem to register on your forum 🙂
I always get an error that I entered the wrong security code thingy…now I ran out of times to register lol!
Anyhow purchased the motor shield and wanted to ask some questions about the motors that I need to use. I should get it soon and get onto testing it!