SparkFun Forums 

Where electronics enthusiasts find answers.

Search found 19 matches

 Go to advanced search

Re: Needing rotary encoder for my robot arm

 by Aggrav8d ¦  Wed Jul 22, 2015 9:39 am ¦  Forum: Projects ¦  Topic: Needing rotary encoder for my robot arm ¦  Replies: 2 ¦  Views: 275

and someone just pointed me to http://www.avagotech.com/products/motio ... T-6010-A06

Those madscientisthut pieces look like exactly what I need. Thank you! I will try to report back when I have tried them out.

Needing rotary encoder for my robot arm

 by Aggrav8d ¦  Wed Jul 22, 2015 9:23 am ¦  Forum: Projects ¦  Topic: Needing rotary encoder for my robot arm ¦  Replies: 2 ¦  Views: 275

Hi Sparkfun! I'm a product developer. For my next project I need rotary encoders that are 12-bit, instantaneous, and continuous. https://hackaday.io/project/945-affordable-programmable-robot-arm When my robot turns on I need to know the position immediately so that I can move it safely. I also want ...

Re: firgelli linear actuators + arduino... how?

 by Aggrav8d ¦  Fri Aug 12, 2011 3:11 pm ¦  Forum: Arduino ¦  Topic: firgelli linear actuators + arduino... how? ¦  Replies: 3 ¦  Views: 4989

I tried tying the two grounds together. It worked once (?) then when i tried to wire another actuator in the same way they both stopped behaving. afaik I haven't let the magic smoke out.

firgelli linear actuators + arduino... how?

 by Aggrav8d ¦  Fri Aug 12, 2011 11:43 am ¦  Forum: Arduino ¦  Topic: firgelli linear actuators + arduino... how? ¦  Replies: 3 ¦  Views: 4989

I've been trying to drive a firgelli linear actuator from an arduino all week and it's driving me (and the firgelli tech support) crazy. I have: - an arduino duemilanova connected via USB to my PC - an L16P (http://www.firgelli.com/Uploads/L16_datasheet.pdf) - an LAC control board (http://www.firgel...

Re: Arduino + rotary encoder

 by Aggrav8d ¦  Sat Mar 26, 2011 6:40 pm ¦  Forum: Code ¦  Topic: Arduino + rotary encoder ¦  Replies: 8 ¦  Views: 40237

Not to beat a dead horse but here's a version that's a little easier to configure and doesn't require any if statements in the main loop (so it can go a lot faster). I've also copied it to my blog . #define PIN_HIGHBIT (7) #define PIN_LOWBIT (5) #define PIN_PWR (3) #define BAUDRATE (9600) #define DE...

Re: howto 9dof imu + arduino + pc over serial?

 by Aggrav8d ¦  Wed Jul 07, 2010 9:36 am ¦  Forum: SparkFun Product Questions ¦  Topic: howto 9dof imu + arduino + pc over serial? ¦  Replies: 3 ¦  Views: 981

Should I be at all concerned about the voltage difference between the arduino (5v) and the sensor (3.3v)? I'm waiting for a logic step-down (is that the term?) and I wonder if I'm being paranoid.

howto 9dof imu + arduino + pc over serial?

 by Aggrav8d ¦  Thu Jun 17, 2010 12:35 pm ¦  Forum: SparkFun Product Questions ¦  Topic: howto 9dof imu + arduino + pc over serial? ¦  Replies: 3 ¦  Views: 981

Hi, gang! I've got a Razor 9DOF IMU connected to a Duemilanova atmega328 through pins 2 and 3. The Duemilanova atmega328 is connected to a PC through the USB. I'm trying to talk to the IMU with the PC so I can figure out what the IMU is actually doing. I hope to help improve documentation for other ...

Schematics

 by Aggrav8d ¦  Tue Jun 15, 2010 10:08 pm ¦  Forum: SparkFun Product Questions ¦  Topic: Schematics ¦  Replies: 1 ¦  Views: 391

Dear Sparkfun, I taught myself C++ and I built my own hexapod robot. Still, I have yet to learn how to read wiring schematics. They don't make one bit of sense to me. In the gallery for each product could you put an image that explains what each pin is for and maybe what it should connect to? I've b...

Re: Bluesmirf broken?

 by Aggrav8d ¦  Sat Jun 05, 2010 10:46 am ¦  Forum: Wireless/RF ¦  Topic: Bluesmirf broken? ¦  Replies: 1 ¦  Views: 356

Apparently it's just my crummy wiring. I have to keep unhooking the modem when I want to use the USB serial connection to update the firmware, and so my connections are really terrible.

False alarm!

Bluesmirf broken?

 by Aggrav8d ¦  Fri Jun 04, 2010 5:23 pm ¦  Forum: Wireless/RF ¦  Topic: Bluesmirf broken? ¦  Replies: 1 ¦  Views: 356

Hi, everyone. I've got one of the newer (blue antennae) BlueSmirf breakouts attached to my robot and I've been connecting to it through a class 1 USB bluetooth dongle on my PC. At first it was connecting on the first try. After maybe 30 connections it was connecting every second attempt. Then for a ...

Re: Camera image stabilization

 by Aggrav8d ¦  Thu May 20, 2010 9:37 am ¦  Forum: SparkFun Product Questions ¦  Topic: Camera image stabilization ¦  Replies: 17 ¦  Views: 3005

It just doesn't have what I need. Why buy something that gives me half of what I want, and a bunch of stuff I don't? It's a fine board and I'm sure the UAV people love it to bits. Even they must realize they need a magnometer along with their gyros so that they can combine it with a GPS breakout for...

Re: Camera image stabilization

 by Aggrav8d ¦  Thu May 20, 2010 7:54 am ¦  Forum: SparkFun Product Questions ¦  Topic: Camera image stabilization ¦  Replies: 17 ¦  Views: 3005

SEN-09623 has accelerometers and gyros but no magnometers. It's funny that there doesn't seem to be a boars with three gyros and thee magnometers. I could infer accel from there. Am I blind? Have I missed the board I'm looking for?

Re: Camera image stabilization

 by Aggrav8d ¦  Wed May 19, 2010 4:50 pm ¦  Forum: SparkFun Product Questions ¦  Topic: Camera image stabilization ¦  Replies: 17 ¦  Views: 3005

I'm re-reading the docs for SEN-09431 and I notice it does NOT have a magnometer. I need that more than I need accelerometers.
Is there a board that has 3-axis magnometer and 3-axis gyro? I can't seem to locate one.

Re: Camera image stabilization

 by Aggrav8d ¦  Wed May 19, 2010 3:30 pm ¦  Forum: SparkFun Product Questions ¦  Topic: Camera image stabilization ¦  Replies: 17 ¦  Views: 3005

So at the risk of sounding stupid...

Can I put one SEN-09431 and three ROB-09402 onto the same arduino board?
I'm not going to run out of pins, am I?
Would I have room for anything else afterwards? I'm also looking to add at least to servos.