OK, just got my BBBW wireless acquiring well over about 200 feet (indoors) and about 400 feet (outdoors) so I have enough of a wireless tether to actually fly my drone. Very impressed with this little unit (the BBBW); I was a little concerned over the little antenna but they seem to work nice.
Next step is to integrate my MCU6050 inertial unit to it via P8/9 I2C (only interface on it). Its a 6DOF that I got from Hong Kong for about $5 free shipping, its on a break out board and even has an "attitude engine" on it. Why this is important is that back in the day, iMEMs stuff like piezo gyros and accelerometers were only 1DOF voltage-out, but this one not only has the ADC's onboard, they are controlled with their own MCU that calculates to x,y,z,vx,vy,vz,ax,ay,az,tx,ty,tz and I think even rate) and allows the host (in this case the directly connected BBBW) to just receive the actual data we need. If you want to experiment with the MCU6050 it is 3.3v so compatible with the BBBW right out of the box, uses I2C and only $5 total on ebay (just search on the part number) comes mounted on breakout board with 0.1 header (like SIP) that you just solder on. I'll post up here as I have successes with interfacing it. I can also provide download locations for my tablet-based drone remote (windows installer) as well as code example on the NEO6M, PIC and MCU integration. I wanted to go nuts with external MCU's but now I'm thinking that I'll have a 3.3V domain and a 5V (TTL) domain on my power section so I'll get my PIC (5V) doing the PWM for the motor speed control. It will have 8 motors counterrotating per pod (I think I might have a sweet way of controlling yaw through coordinated power throttling). So I'll be able to finally use my bootleg K150. I'm thinking maybe voltage divider (resistive....I'll put up some sweet discrete networks here so we have some reference designs to bridge cheaply and small-ly between the two voltage domains and others) to translate signals from TTL (5V) down to 3.3v (we did this with RS232 with the PIC for years and years now), and an led-heatshrinktube-phototransistor from 3.3v up to TTL (5V) forming a tiny single line/single direction optoisolator. Actually scratch that, here is a $0.18 jobbie that does exactly the same thing. Looks like optocoupler will do it if I can keep the discretes count low. http://www.mouser.com/ProductDetail/Lite-On/LTV-817/?qs=sGAEpiMZZMteimceiIVCB4BEdbJlF99qoohwWIG77es%3d On Monday, January 30, 2017 at 6:19:30 PM UTC-7, woody stanford wrote: > > I posted the remote control for this in Software, but I put a bunch of > hardware in it so I thought I'd post it here. > > > https://groups.google.com/forum/#!category-topic/beagleboard/software/evSIUcuWfUY > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/ccb44a5e-02fe-4cae-b013-606654fa6547%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
