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Hardware mods / MEGA2560
« Last post by ulmtn on January 28, 2017, 01:43:31 PM »
My Balanduino clone is based on an Arduino Mega 2560 ADK (works also with the Mega 2560 and USB host shield). For encoder interrupts the Ports B, K and J corresponding to interrupt vectors PCINT0, PCINT1 and PCINT2 can be used as on the original Mega 1284P .But the most stable balancing is achieved with PCINT0 (PCINT0, pin 13 and pin 10). When switching to PCINT1 (pin 14 and 15) or PCINT 2 (A8, A9 analog pins) the reaction to pushing the robot is much weaker. Is there a reason, that other Pin Change interrupts behave differently than PCINT0?
The only configuration that shows the same performance as the original Balanduino robot is using the attachInterrupts 0 and 1 (pin2 and 3) together with PCINT0 on PortB pins, like in Balanduino Revision 1.2. However, I wanted to implement the improvements of Revision 1.3 with different Ports for each encoder. How is this possible on the Mega2560 without loss in performance?
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Getting Started / Re: Controlling the Balanduino with regular 2 ch TX/Receiver
« Last post by Lauszus on June 04, 2016, 01:50:19 AM »
Yes you can. Please read the following section of the readme: https://github.com/tkjelectronics/Balanduino#rc-transmitter.

Regards
Kristian Sloth Lauszus
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Getting Started / Controlling the Balanduino with regular 2 ch TX/Receiver
« Last post by Jimmy on June 03, 2016, 06:59:28 PM »
Is there a way to connect or use a regular 2 CH Transmitter and receiver to control the balanduino bot?

Thanks,
Jimmy
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Getting Started / Re: Wheels go in opposite directions at full speed
« Last post by Lauszus on June 02, 2016, 11:59:31 AM »
I would recommend the following motors: https://www.pololu.com/product/2823.

Regards
Kristian Sloth Lauszus
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Getting Started / Re: Wheels go in opposite directions at full speed
« Last post by stevep on June 01, 2016, 03:05:44 PM »
Revision is correct. can you point me to a good source for motors and encoders?...I suspect the ones that I have (Chinese) might be the issue? What do you think?
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Software development / Re: PID loop time
« Last post by Lauszus on May 29, 2016, 01:05:42 PM »
The loop time is about 10 ms.

Regards
Kristian Sloth Lauszus
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Software development / PID loop time
« Last post by rovy on May 28, 2016, 12:35:25 AM »
I was wondering what is PID loop time?
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Getting Started / Re: Wheels go in opposite directions at full speed
« Last post by Lauszus on May 28, 2016, 12:25:54 AM »
Please make sure that you have selected the right revision in the "Tools>Revision" menu. You can see the revision on your main board.

Regards
Kristian Sloth Lauszus
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Getting Started / Re: Wheels go in opposite directions at full speed
« Last post by stevep on May 19, 2016, 08:38:51 PM »
OK. Scratch that, the above happened once. Now, every time they go in the negative and seemingly do not stop getting smaller.
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Getting Started / Re: Wheels go in opposite directions at full speed
« Last post by stevep on May 19, 2016, 07:44:58 PM »
Stuff hit the fan at work, finally back to normal:
Values started at 0, in a few seconds climbed to 1900 and stayed there. Wheels still spinning opposite.
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