A question concerning the
4WD Arduino Compatible Mecanum Robot Kit
Product code : RB-Nex-0
How are the encoders mounted , before or after the gearbox ? that means it measures the actual wheel rotation or the motor rotation ? If it measured directly the motor rotation, is the Arduino able to read it ? Isn’t the pulse too quick ?
I have rapidly looked through the data sheet and haven’t seen any function calling the encoder data (is this possible ?)
Moreover, could the Arduino be programmed through Bluetooth ? ( I saw that a Bluetooth module is available )
I know that some people have issues when programming by Bluetooth; how reliable is it ?
Most encoders are mounted to the back of the motor itself. This provides higher resolution than if it were mounted afte rthe gear box. Also, should an encoder be mounted after the gear box, it means the shaft needs to be quite long, and reduces potential mounting options. In this case, it’s mounted to the rear of the motor and it uses normal infrared, so yes, an Arduino can read it.
There is sample code available under the “Useful Links” tab of the product description.
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Concerning wireless programming of the arduino, I see that in the datasheet an apc220 module is mentioned. Moreover, it states that the kit contains
one APC220 Wireless Transmission module
one APC220 USB adaptation shield
one antenna
so these are provided when buying the platform, or I would have to buy them separetely ?
In the first case, the manual states that :
" USB adapter from manufacturer seems not to match
APC220 because the number of pins is different"
…So what do you suggest ?
And in the case I have to buy myself the wireless kit, I would stick with the suggestion you’ve made for the DFRobot Wireless Programming Module. The only thing left would still be a DFRobot Xbee USB Adapter V2 . No other shield would be necessary, as the IO expansion board from the platform has everything on it. Did I get it right ?
