SparkFun Support and Front Desk will be closed on Thursday 11/14 from 1-2:30pm for a company event. Please plan to pick up your orders before or after this timeframe.
This is the Hobby Motor and Encoder Kit from DAGU, an inexpensive and reliable set of add-ons for your next robotic project. Inside this kit are three pairs of items: wheels, gearmotors, and wheel encoders (including everything you need to hook them up). The Hobby Motor and Encoder Kit is perfect for providing beginners with a cheap and easy to use setup or if you just need a few extra parts.
The off set gear motors included with this kit require a voltage of 3-6V with a no load current of 200mA and possess a stall current of 3A@6V (1.5A@3V), a gearbox ratio of 48:1, and a wheel speed of 65RPm at 3V unloaded. Each wheel encoder in this kit requires a supply voltage of 3-24V, a supply current of 4mA, consists of two neodymium 8-pole magnets with rubber hubs, and two hall-effect sensors terminated with 150mm cables and 3-pin female servo headers.
This skill concerns mechanical and robotics knowledge. You may need to know how mechanical parts interact, how motors work, or how to use motor drivers and controllers.
Skill Level: Rookie - You will be required to know some basics about motors, basic motor drivers and how simple robotic motion can be accomplished.
See all skill levels
Whether it's for assembling a kit, hacking an enclosure, or creating your own parts; the DIY skill is all about knowing how to use tools and the techniques associated with them.
Skill Level: Noob - Basic assembly is required. You may need to provide your own basic tools like a screwdriver, hammer or scissors. Power tools or custom parts are not required. Instructions will be included and easy to follow. Sewing may be required, but only with included patterns.
See all skill levels
If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.
Skill Level: Rookie - You may be required to know a bit more about the component, such as orientation, or how to hook it up, in addition to power requirements. You will need to understand polarized components.
See all skill levels
Based on 4 ratings:
The motors get decent torque and the wheels have good grip, that's the good side.
I am completely lost on how to use the encoder kit; the data sheet is completely useless to me and the one site I've found that discusses these is beyond my understanding,
It would be very nice to see example code and hardware setup for using these with an Arduino, with and without a motor driver or H-Bridge since not everyone (me!) who buys these will have that motor driver or H-Bridge available. It would be nice if the description mentioned that this may be needed; us newbies don't always know what's needed :)
Without the encoder aspect, without the motor driver parts, and without PWM, I was able to turn these on using a 9v power supply and an 2N3904 transistor. That's as far as I've gotten. I don't even know what the two blue rectangles are for, but they're included in the package.
I would really like to know more about using these to their full capacity, does anyone have examples or links?
Hi, It's a little hidden, but there is actually a good bit of information on the encoders that can be found in the Redbot guide and code. Here's a link to the guide. https://learn.sparkfun.com/tutorials/redbot-assembly-guide-rev-02/wheel-encoder Cheers
I like it so far, I've more to do with this set of parts. Have not tested the encoders yet but do not expect any difficulty. The price is very reasonable.
The tubing was 1 size too big for one of the encoders but correct for the other. That provided some difficulty down the line but was able to manage.
Other note: this will not work with the shadow chassis.
Other then that decent product.
Bought the wheels and motors then started to build the frame to fit the wheels. I think the frame outgrew the wheels. time will tell...