Comments for Lucky Larry

Comment on Arduino: Modifying a Robot Arm by Arduino controlled Robot Arm « Guylevans CSM4 Blog

Arduino controlled Robot Arm « Guylevans CSM4 Blog — Tue, 09 Mar 2010 20:28:32 +0000

[...] controlled Robot Arm I stumbled across a great blog last week (LINK), while researching interesting projects to try with my Arduino. The article showed how an Arduino [...]

Comment on Arduino: Controlling the Robot Arm by larry

larry — Tue, 09 Mar 2010 10:01:07 +0000

You’re very welcome although please improve on my work!

Comment on Arduino: Controlling the Robot Arm by guylevans

guylevans — Mon, 08 Mar 2010 21:12:46 +0000

Thanks Larry, i finally built my own robot arm, all credit goes to you though.
Thank you so much for sharing your instructions and code with us.
I am in awe of your Arduino knowledge
Thank you once again!

Comment on Arduino: IR remote/ intervalometer for Nikon D80 DSLR (that means timelapse photography yarrr!) by yoyoteng

yoyoteng — Fri, 05 Mar 2010 14:24:53 +0000

Yes, I have tried putting it about .5 meters away from the camera, and the camera did not pick up the signal. But, for me, it's no big deal when taking timelapse, I would just tie the Arduino (along with the batteries) on top of the lens (as fixed focal length and manual focus is used, the lens stays still while shooting). Here is a test shot taken in the Millenium Park in Chicago. Thanks again!

Comment on Fixing the 2nd Gear on a Yamaha Triple Engine by larry

larry — Wed, 03 Mar 2010 23:14:04 +0000

You’re welcome – guess you had the same problems?

Comment on Fixing the 2nd Gear on a Yamaha Triple Engine by from Livermore, CA, United States

from Livermore, CA, United States — Wed, 03 Mar 2010 20:42:33 +0000

amazing write up! thank you so much for posting this!

Comment on Arduino: Controlling the Robot Arm by larry

larry — Wed, 03 Mar 2010 09:41:45 +0000

I would love to use servos Rohan! Trouible is the robot arm kit I had uses motors in their own gearboxes and it seemed like less work to stick with the motors.

With servos it would be awesome since you don’t have to worry about encoding the position of each servo – something I’m currently trying to do, which I think Ive figured out.

If you were to use servos, you would have to add the library to Arduino, you wouldn’t need the H-bridge chips just 5 pins, 1 for each servo and the power and gnd connections for each. If you’re using larger servos greater than 5 volts or a 40 mA draw you would need to use a separate power supply and use some transistors -TIP120’s or something.

Code wise not much would be needed to be modified, just for each key press you would rotate a servo using PWM instead – I’ve done some servo work here: http://luckylarry.co.uk/tag/servo/

If anyone knows of a cheap(ish) arm with servos let me know!

Comment on Arduino: Controlling the Robot Arm by rohan

rohan — Wed, 03 Mar 2010 08:11:22 +0000

hi larry…
nice job… i am building my first robotic arm… your work will help me a lot… i have few queries though… first why arent u using a servo motor as arduino have library for it… and what changes should i make in the code if a intend to use a servo motor..

Comment on Arduino: Controlling the Robot Arm by imthiaz

imthiaz — Wed, 03 Mar 2010 05:26:47 +0000

hey larry, thanks for helping me with my earlier doubt. iam just keen to know, are u still gonna work on the inverse kinematics? i think that would be cool. also i had a doubt, will it be easy to use the accelormeter on my ipod touch to control the robot, would i need to develop an iphone app for that? thanks

Comment on Arduino: IR remote/ intervalometer for Nikon D80 DSLR (that means timelapse photography yarrr!) by larry

larry — Tue, 02 Mar 2010 11:13:52 +0000

Hi Alastair,

I’m using a digital SLR so its on standby and the battery life will last along time – for my project I just left the camera as default but turned on the remote setting. For the Arduino a 9volt battery power supply should mean this’ll run for a while to – could build in a battery checker for camera and arduino.

Putting in a 2 way switch is easy enough, just do it at the power source – not sure for the camera though – that might require some hacking.

Alternatively you can get a cheap(ish) canon powershot or ixus that you can alter the firmware on that will let you do timelapse.

I want to do some timelapse actually for my lizards so I’ll run the camera and see how many shots I can get before power fails.