Hi, After extracting the files, make sure not to move the exe from its original folder. I also noticed that your firmware version is B02_231206. Please upgrade to the lastest one using the firmware uploader or Arduino IDE to see if the problem persists.

Thanks for the follow-up. Yes, the feedback servos have been delivered earlier this year. I'm glad to share this new demo video with you, which teaches Nybble Q new movements through position feedback. Teach the robot new trick using feedback servos

I'm thinking of posting more structures to MakerWorld for better documentation and presentation. https://makerworld.com/en/@petoicamp

I suggest you first try with Arduino's Serial monitor to test the outputs of the token commands. Are you using Raspberry Pi 4 or 5? There will be some modifications in ardSerial.py to connect to ttyAMA0.

I've modified the code for the Gyro logic and pushed it to branch "better-gyro": https://github.com/PetoiCamp/OpenCatEsp32/tree/better-gyro You can refer to the function in ardSerial.py => def printSerialMessage(port, token, timeout=0), which keeps reading the serial port and extracts useful information on the gyros.

Hi, we switched to a slim box that fits Bittle tight. Could you send a picture of your original Bittle box?

Could you take a picture to show how the sensor is connected to the board?

Hi, Yes, Bittle keeps listening to the voice commands by default. According to the video, it's in Chinese mode, and heard the command "kick", pronounced as "T-tweet" in Chinese. So it's not a random behavior. You can say BingBing to switch it to English mode. Detailed docs: https://docs.petoi.com/extensible-modules/voice-command-module

Hi, could you send a video to show the movements during booting? One possible "random" behavior is the robot's "instincts" to keep balance. If the robot is flipped over, it will perform a rolling back movement sequence. The instincts is triggered by the gyroscope data, which can be disabled when you connect the robot in Mind+. The serial command to toggle the gyroscope is capitalized 'G'.

If it reacts strangely, it's probably not the newest feedback servo.

There are tokens ',' and '.' to decrease and increase the speed within each gait by reducing the delay between each frame. .

The eight values are the angles for joints starting from index 8 in this picture. https://docs.petoi.com/petoi-robot-joint-index The head angle is calculated using sin function https://github.com/PetoiCamp/OpenCat/blob/902c3192224833202c429f59df9678b60d838989/src/skill.h#L470-L472 You can import the InstinctBittle.h into the Skill composer to play with the gait array. https://docs.petoi.com/desktop-app/skill-composer#import-the-skill

Hi, you will need to wire the sensor using jumper wires and connect it to one of the digital Grove pins with pin number 6,7 or 8,9. Here's the test code for the regular ultrasonic sensor. https://github.com/PetoiCamp/OpenCat/blob/main/ModuleTests/testUltrasonic/testUltrasonic.ino

Hi, you can use a regular demo code for DHT11, and integrate it with Bittle's code. https://docs.petoi.com/extensible-modules/introduction

It's equipped by default on the Nybble cat. But we haven't listed it on our online store. We also have a new cat to be released this fall.

Thanks for your early support on the Nybble project. We have been improve it in many aspects which led to multiple versions. It's challenging to keep the workflow neat while keep all versions covered. It's still much easier to update documents than re-editing the videos. I'd suggest you watch the video to see a big picture of the whole process, then refer to the docs that have detailed notes.

Hi, it's not a cryptic post, but shown in the assembling instruction following the path: docs.petoi.com => Nybble Cat User Manual => 3 🏗 Assemble the Frame => 3.1 Head and neck. Please let me know your path when checking the tutorials and suggest a better way to avoid future users missing it.

Hi, Please compare these two pictures: https://nybble.petoi.com/chapter3#id-3.1.1-part-list

If you open the back cover, does the blue led on the board lighting steadily? It looks like a crashed bootloader. Do you have the bootloader resetter in your package? https://docs.petoi.com/technical-support/burn-bootloader-for-nyboard#use-the-simple-bootloader-resetter

It looks cute. Will it be available for other users to download?