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We have been doing a family competition launching toy balls with the BittleX + ARM.
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Call me Grandpa Gray
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compiling MPU6050 problems
Hi, I am trying to run the OpenCat software on a pure Arduino Nano, but I don't even get the software compiled in the IDE before uploading. I get a whole page of errors concerning the MPU6050.h and MPU6050.cpp files saying that the code does not comply with c++ rules and so on. can anybody point me in the right direction here? thanks.
sorry if this is the wrong forum thread .
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Marin Schouten
Nov 01
well I get the same messages as dr. Rongzhong showed above. but I understand that this are warnings that can be ignored. in the mean time, I have uploaded the code to an Arduino UNO succesfully. Although the PCA9865 calibration with PWM 8 to A3 (or PWM3 to A3) does not finish.
when I do install the main_skecth, I do get messages on the serial port and can send commands. But unfortunately, the servos seem to be not working correctly. with the ksit command, my cat tries to strangle himself by turning the neck 360 degrees and the rear left thighis going all the way back. some kind of yoga I suppose...
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Error 1006 when connecting to Wifi
When trying to connect to Bittle X over WiFi with ProgramBlockly in the most recent version, I get the following error messages:
[WebSocket] Connection closed 1006
Reconnect] Attempting to reconnect (2/5)... (delay: 1000ms)
QuickConnect seems to find and store the connection but then the connection keeps closing. Also, pressing the boot key no longer counts down 10 to open a hotspot so the web page connection method doesn't work any longer.
I tried an older version from July and it works OK.
Anyone else seeing this issue?
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Jason
Oct 16
Please try the latest code on the redesinWeb branch. https://github.com/PetoiCamp/OpenCatEsp32-Quadruped-Robot/tree/redesignWeb
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Mujoco Simulator With Bittle
I thought I'd share a project I've recently done with Bittle in case anyone is interested in exploring simulation with Bittle in a non reinforcement learning application, although one could also use Mujoco for reinforcement learning also.
I used the URDF created for Bittle here. AIWintermuteAI made the URDF files for Bittle a while back, which was a great starting point to get a model of Bittle into the Mujoco simulator made by google deepmind.
My project aimed to use model predictive control (MPC) to generate optimal gait patterns to run open loop on the Bittle robot. The first step was to get a model into the simulator. To do this, I converted the URDF model to XML format for the simulator. Then I created the environment and configuration to use Mujoco Model Predictive Control (MJPC) with Bittle. MJPC was also developed by google deepmind.
MJPC effectively performs forward rollout…
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Rongzhong Li
May 15
Yes, it's the exact model of our production model. The previous one was reverse engineered by our users.
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Desktop App slow and halting on Macbook
I am completely new to Bittle, just finished assembling one for my grandson. Currently at calibration stage, downloaded and installed Desktop app on my Macbook running the latest OS. App launches, but it is slow and halting, and frequently does not respond to any clicks on the firmware or calibrate options. I did grant it permission and sometimes one or two of the servos move and the board makes a sound, but I cannot get the program to run smoothly. Any ideas?
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Jason
May 07
Please try to run the desktop app in the terminal via the following command: /Applications/Petoi\ Desktop\ App.app/Contents/MacOS/Petoi\ Desktop\ App
Then please attach the log in the terminal interface.
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Servo problem
Hello, I have a bittle x robot. I removed the old board (BiBoard) and installed the Nyboard and connected it to the servos and made sure of the connection. I downloaded the code and made sure to activate the type of board and the robot, but when I started it and gave it some commands with the remote, the servos did not work well. I calibrated the servos, some of them work and some do not, so I installed the old board to return it to work, but the servo became worse. acutally the servos when I bought the robot after a few months Sometimes it didn't work well. Is there a solution to the problem because it happened suddenly? Is the only solution to reassemble the robot from scratch or buy a new servos or are there other solutions?
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AR Robotic Controller
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AR Robotic Controller
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You can find more of our work with Bittle and Nybble robots at https://www.learnwitharobot.com/t/bittle