Author Topic: Blue-RX Kickstarter  (Read 3862 times)

dougal

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Blue-RX Kickstarter
« on: April 26, 2013, 10:59:02 am »
This Kickstarter project caught my eye the other night:


  [size=78%]http://www.kickstarter.com/projects/1992869862/blue-rx-a-16ch-servo-pwm-bluetooth-40-receiver[/size]


It's a 16 channel PWM/Servo Bluetooth receiver. I'm thinking it would be great at the heart of a quadcopter project (among other things).


I've been thinking about whether we could use Digispark's in a quadcopter, too. In particular, I'm kicking around the idea of using multiple Digisparks in tandem -- perhaps one for RC comms, one for stabilization (gyro/accel monitoring), and one for servo control.


Thoughts?


Mark

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Re: Blue-RX Kickstarter
« Reply #1 on: April 26, 2013, 09:12:47 pm »
dougal
Not bad, but strange rewards structure.

You may wish to look at Hobby kings options for controllers.
Very hard to beat the prices.
http://www.hobbyking.com/hobbyking/store/__657__501__Multi_Rotors_Parts-Flight_Controller.html

Mark

Tommy_2Tall

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Re: Blue-RX Kickstarter
« Reply #2 on: April 28, 2013, 11:47:53 pm »
Hi!

That looks like a promising project.

I've recently been looking at(/drooling over) adafruit's 16-channel PWM I2C breakout (https://www.adafruit.com/products/815).
It would be interesting to connect that and a serial BT-module I already have (e.g. "JY-MCU") to one of my DigiSparks.
That would make a somewhat customizable BT-to-I2C interface.
My only concern was that there would only be 2 "sensor-pins" left available after the serial and I2C was connected and then there's the limited memory of the ATtiny85..
You could use I2C sensor boards but that would only add to the code size..
A lot of functionality would be needed in the 6 KB available in the DigiSpark.
Just having a simple serial-to-I2C command interpreter might work in some cases but for a multicopter I guess you wouldn't want to risk any missed/incomplete command messages. :-S

A Y6 multicopter is already on my "would want to build if budget allows"-list and the "KK2.0 with LCD" controller board listed on the previosly linked HobbyKing page would probably be my "weapon of choice".
Granted.. it doesn't have 16 channels but it's got enough channels to control 8 motors and all the gyro/accelerometer logic is already in place.. even cam-control if you get the right version of the firmware.
That Blue-Rx  board could come in handy there.. connect 8 of the PWM outputs to the RX-pins on the controller board and then there would be 8 more channels available for all kinds of crazy close-range experimentation. :-D

Doing your own controller board would obviously gives you more freedom though.. if you want to experiment with grappling arms or remote controlled folding/reposturing or what not.. :-D