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Some questions related to the B-Robot/Brain Shield
03-20-2019, 05:47 AM
Post: #1
Some questions related to the B-Robot/Brain Shield
I bought the Brain Shield and put together a B-Robot using my own frame. It works fine. Thanks for the good work. However, I have a few questions.
1. The Robot can stand and I can control it using the Android app. I observed that while standing, it shakes a little bit. Maybe it is normal, but I want to make sure.
2. It can move forward and backward. However, while moving, if I want to stop, I need to do it gradually. Otherwise, it will fall. Is it normal?
3. The wifi module used by the shield is ESP-12E (ESP8266). However, in the PDF file of the schematic, it is shown as XBEE-1B1. Does this mean the schematic is out of date? If it is, is there an updated schematic that I can find?
Thanks in advance.
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03-20-2019, 06:48 PM
Post: #2
RE: Some questions related to the B-Robot/Brain Shield
It looks like you will have to modify the PID control to improve the behavior / stability of your custom B-robot.
There is info here about how to adjust those parameters to your robot: https://www.jjrobots.com/robotic-challen...ic-waiter/
The same applies for point 1 and 2. It is about adjusting the PID values to your robot

The last Brain shield schematic can be found here: http://forums.jjrobots.com/attachment.php?aid=282 ;-)
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03-20-2019, 07:59 PM
Post: #3
RE: Some questions related to the B-Robot/Brain Shield
Thank you for your prompt response. I will try and let you know if there are still questions.
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03-21-2019, 06:22 AM
Post: #4
RE: Some questions related to the B-Robot/Brain Shield
(03-20-2019 06:48 PM)JJrobots JP Wrote:  It looks like you will have to modify the PID control to improve the behavior / stability of your custom B-robot.
There is info here about how to adjust those parameters to your robot: https://www.jjrobots.com/robotic-challen...ic-waiter/
The same applies for point 1 and 2. It is about adjusting the PID values to your robot

The last Brain shield schematic can be found here: http://forums.jjrobots.com/attachment.php?aid=282 ;-)

For the ESP12 module, looks like the GPIO04/05/12/13/14/15 pins are not connect to anything, is this correct? (I haven't read schematics for a long time, sorry for the stupid question. Big Grin )
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03-21-2019, 09:54 PM
Post: #5
RE: Some questions related to the B-Robot/Brain Shield
(03-21-2019 06:22 AM)twinclouds Wrote:  
(03-20-2019 06:48 PM)JJrobots JP Wrote:  It looks like you will have to modify the PID control to improve the behavior / stability of your custom B-robot.
There is info here about how to adjust those parameters to your robot: https://www.jjrobots.com/robotic-challen...ic-waiter/
The same applies for point 1 and 2. It is about adjusting the PID values to your robot

The last Brain shield schematic can be found here: http://forums.jjrobots.com/attachment.php?aid=282 ;-)

For the ESP12 module, looks like the GPIO04/05/12/13/14/15 pins are not connect to anything, is this correct? (I haven't read schematics for a long time, sorry for the stupid question. Big Grin )
Yes, they are not needed. BUT it is "easy" to solder a cable to the moduleĀ“s pads if you need your own "interface"
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03-21-2019, 11:38 PM
Post: #6
RE: Some questions related to the B-Robot/Brain Shield
(03-21-2019 09:54 PM)JJrobots JP Wrote:  
(03-21-2019 06:22 AM)twinclouds Wrote:  
(03-20-2019 06:48 PM)JJrobots JP Wrote:  It looks like you will have to modify the PID control to improve the behavior / stability of your custom B-robot.
There is info here about how to adjust those parameters to your robot: https://www.jjrobots.com/robotic-challen...ic-waiter/
The same applies for point 1 and 2. It is about adjusting the PID values to your robot

The last Brain shield schematic can be found here: http://forums.jjrobots.com/attachment.php?aid=282 ;-)

For the ESP12 module, looks like the GPIO04/05/12/13/14/15 pins are not connect to anything, is this correct? (I haven't read schematics for a long time, sorry for the stupid question. Big Grin )
Yes, they are not needed. BUT it is "easy" to solder a cable to the moduleĀ“s pads if you need your own "interface"
Thank you. If I want to build my own "PC" board, can just hook it up as given in the schematic and upload the sketch to Arduino Leonardo. Do I need do any programming with ESP12? Assume the firmware with AT commands has been loaded.
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