> For the complete documentation index, see [llms.txt](https://docs.petoi.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.petoi.com/extensible-modules.md).

# Extensible Modules

- [Introduction](https://docs.petoi.com/extensible-modules/introduction.md)
- [MU Camera](https://docs.petoi.com/extensible-modules/mu-camera.md)
- [Ultrasonic Sensor](https://docs.petoi.com/extensible-modules/ultrasonic-sensor.md)
- [Light Sensor](https://docs.petoi.com/extensible-modules/light-sensor.md)
- [Touch Sensor](https://docs.petoi.com/extensible-modules/touch-sensor.md)
- [Gesture Sensor](https://docs.petoi.com/extensible-modules/gesture-sensor.md)
- [PIR Motion Sensor](https://docs.petoi.com/extensible-modules/pir-motion-sensor.md)
- [IR Distance Sensor(Double Infrared Reflection Sensor)](https://docs.petoi.com/extensible-modules/ir-distance-sensor-double-infrared-reflection-sensor.md)
- [Voice Command Module](https://docs.petoi.com/extensible-modules/voice-command-module.md)
- [Petoi AI Vision](https://docs.petoi.com/extensible-modules/petoi-ai-vision.md)
- [Advanced development and application of AI vision modules](https://docs.petoi.com/extensible-modules/advanced-development-and-application-of-ai-vision-modules.md)
- [Model Training](https://docs.petoi.com/extensible-modules/advanced-development-and-application-of-ai-vision-modules/model-training.md): With deep learning networks can learn data features from large amounts of data, which can be applied to a variety of detection, segmentation tasks.
- [Model quantification](https://docs.petoi.com/extensible-modules/advanced-development-and-application-of-ai-vision-modules/model-quantification.md): In the ‘Model Training’ section, we explained how to train a yolov8 model, but in order to deploy it on Grove Vision V2, we need to further quantify the model. This section is described below:
- [Model deployment](https://docs.petoi.com/extensible-modules/advanced-development-and-application-of-ai-vision-modules/model-deployment.md): In this section, we will learn how to upload the model to the hardware and complete communication with the Petoi robot dog.
- [Training on the COCO DIY dataset](https://docs.petoi.com/extensible-modules/advanced-development-and-application-of-ai-vision-modules/training-on-the-coco-diy-dataset.md): This section describes how to extract some of the labels and data from the COCO dataset for training using the scripting tool provided by Petoi.
- [Robot Arm](https://docs.petoi.com/extensible-modules/robot-arm.md)
- [Upgrade your older Bittle/Bittle X for the robotics arm gripper](https://docs.petoi.com/extensible-modules/robot-arm/upgrade-your-older-bittle-bittle-x-for-the-robotics-arm-gripper.md)
- [Joystick with Micro:Bit](https://docs.petoi.com/extensible-modules/joystick-with-micro-bit.md)
- [Back Touch Sensor](https://docs.petoi.com/extensible-modules/back-touch-sensor.md)
- [Bittle X V2 / Bittle X+Arm](https://docs.petoi.com/extensible-modules/back-touch-sensor/bittle-x-v2-bittle-x+arm.md)
- [Nybble Q](https://docs.petoi.com/extensible-modules/back-touch-sensor/nybble-q.md)


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