# Robotic kit for Raspberry Pi **URL:** https://forum.sunfounder.com/c/robotic-kit-for-raspberry-pi/10.md [Latest](https://forum.sunfounder.com/latest.md) · [Categories](https://forum.sunfounder.com/categories.md) · [Tags](https://forum.sunfounder.com/tags.md) --- ## [About the Robotic kit for Raspberry Pi category](https://forum.sunfounder.com/t/about-the-robotic-kit-for-raspberry-pi-category/17)
**Author:** [@SunFounder\_Moderator](https://forum.sunfounder.com/u/SunFounder_Moderator)\ **Replies:** 4\ **Last updated:** [January 18, 2025, 6:59pm UTC](https://forum.sunfounder.com/t/about-the-robotic-kit-for-raspberry-pi-category/17 "2025-01-18T18:59:49Z")
Post here about your Robotic projects, and get help-for Sunfounder customers. --- ## [Picarx python3: can't open file '/home/pi/picar-x/setup.py': \[Errno 2\] No such file or directory](https://forum.sunfounder.com/t/picarx-python3-cant-open-file-home-pi-picar-x-setup-py-errno-2-no-such-file-or-directory/5015)
**Author:** [@vince](https://forum.sunfounder.com/u/vince)\ **Replies:** 2\ **Last updated:** [September 25, 2026, 9:06pm UTC](https://forum.sunfounder.com/t/picarx-python3-cant-open-file-home-pi-picar-x-setup-py-errno-2-no-such-file-or-directory/5015 "2026-09-25T21:06:34Z")
installing picar-x on a raspberry zero 2w, following updated instructions at Install All the Modules (Important) — SunFounder PiCar-X Kit documentation . Have re-installed pi “bookworm” as apparently your code does not s… --- ## [No sound playing back wav file from PiCar-X Example 16. Voice Controlled Car with Vosk](https://forum.sunfounder.com/t/no-sound-playing-back-wav-file-from-picar-x-example-16-voice-controlled-car-with-vosk/4935)
**Author:** [@Will](https://forum.sunfounder.com/u/Will)\ **Replies:** 24\ **Last updated:** [September 24, 2026, 1:55pm UTC](https://forum.sunfounder.com/t/no-sound-playing-back-wav-file-from-picar-x-example-16-voice-controlled-car-with-vosk/4935 "2026-09-24T13:55:03Z")
The first part of this example has you do a microphone check. I did this, but when I try to play back the recorded wav file (aplay test.wav), there is no sound. I checked and neither the microphone nor the speaker are … --- ## [Different versions of the robot hat?](https://forum.sunfounder.com/t/different-versions-of-the-robot-hat/5002)
**Author:** [@greenpea](https://forum.sunfounder.com/u/greenpea)\ **Replies:** 6\ **Last updated:** [September 21, 2026, 6:57pm UTC](https://forum.sunfounder.com/t/different-versions-of-the-robot-hat/5002 "2026-09-21T18:57:17Z")
In my kit is a robot hat 3.3, it resembles the drawing in the paper assembly manual. But in the online manuals there is a different robot hat having an usb-c connector amongst others. Also the online instructions mention… --- ## [I want understand the code about the interactions between instances of the Servo and PWM classes of robot\_hat with picarx](https://forum.sunfounder.com/t/i-want-understand-the-code-about-the-interactions-between-instances-of-the-servo-and-pwm-classes-of-robot-hat-with-picarx/5004)
**Author:** [@curiosity](https://forum.sunfounder.com/u/curiosity)\ **Replies:** 3\ **Last updated:** [September 20, 2026, 9:20am UTC](https://forum.sunfounder.com/t/i-want-understand-the-code-about-the-interactions-between-instances-of-the-servo-and-pwm-classes-of-robot-hat-with-picarx/5004 "2026-09-20T09:20:05Z")
I observed the traces when instantiating the Picarx class. To do this, I inserted “print” statements in a specific format. The logs are formatted as follows: " {format } ::= {Num\_Line} {key} {level} {method name} { da… --- ## [What OS on a PI 5 for a picar-x](https://forum.sunfounder.com/t/what-os-on-a-pi-5-for-a-picar-x/4999)
**Author:** [@greenpea](https://forum.sunfounder.com/u/greenpea)\ **Replies:** 2\ **Last updated:** [September 17, 2026, 2:28pm UTC](https://forum.sunfounder.com/t/what-os-on-a-pi-5-for-a-picar-x/4999 "2026-09-17T14:28:51Z")
Hi, owner of a picar-x kit (labeled 2023-10-20 on the box) that’s getting build now. What OS should I use with a PI 5? Thanks for your time Pea --- ## [I want understand the code of PWD and I2C class of robot\_hat with picarx](https://forum.sunfounder.com/t/i-want-understand-the-code-of-pwd-and-i2c-class-of-robot-hat-with-picarx/4980)
**Author:** [@curiosity](https://forum.sunfounder.com/u/curiosity)\ **Replies:** 2\ **Last updated:** [September 17, 2026, 1:20pm UTC](https://forum.sunfounder.com/t/i-want-understand-the-code-of-pwd-and-i2c-class-of-robot-hat-with-picarx/4980 "2026-09-17T13:20:41Z")
The \_\_ init \_\_\_ method of picarx.py creat 3 instance of SERVO each is on canal P0, P1, P2, servo\_pins:list=\[‘P0’, ‘P1’, ‘P2’\] 51 self.cam\_pan = Servo(servo\_pins\[0\]) 52 self.cam\_tilt = Servo(servo\_pi… --- ## [Obstacle Avoidance](https://forum.sunfounder.com/t/obstacle-avoidance/4965)
**Author:** [@ashishjain](https://forum.sunfounder.com/u/ashishjain)\ **Replies:** 9\ **Last updated:** [September 17, 2026, 10:06am UTC](https://forum.sunfounder.com/t/obstacle-avoidance/4965 "2026-09-17T10:06:34Z")
My new raspeberry picar 3b+ was working well until I run sudo python3 4.obstacle\_avoidance.py , it keeps spamming the phrase “distance:-1” and the Picar-x keeps going backwards in a circle continously. --- ## [Picar-x Servos Jerk upon Initialization of Picarx Library Except After Reboot](https://forum.sunfounder.com/t/picar-x-servos-jerk-upon-initialization-of-picarx-library-except-after-reboot/4933)
**Author:** [@RichardM](https://forum.sunfounder.com/u/RichardM)\ **Replies:** 12\ **Last updated:** [September 16, 2026, 10:04am UTC](https://forum.sunfounder.com/t/picar-x-servos-jerk-upon-initialization-of-picarx-library-except-after-reboot/4933 "2026-09-16T10:04:37Z")
After zeroing and calibrating the servos on my Picar-x with Raspberry Pi 4, I tested its movement with the 2.move.py script. The script ran perfectly with all the expected movements. Upon running this script a second t… --- ## [Having trouble calibrating picrawler](https://forum.sunfounder.com/t/having-trouble-calibrating-picrawler/4988)
**Author:** [@dlorfel](https://forum.sunfounder.com/u/dlorfel)\ **Replies:** 7\ **Last updated:** [September 16, 2026, 10:02am UTC](https://forum.sunfounder.com/t/having-trouble-calibrating-picrawler/4988 "2026-09-16T10:02:00Z")
I’m confused about calibrating pi crawler. -I installed all servos and have everything setup. They are lined up with all screws in the correct place. I am assuming that is correct. -I have been running the servos wit… --- ## [Can't connect to wifi on EzBlock for my Picrawler](https://forum.sunfounder.com/t/cant-connect-to-wifi-on-ezblock-for-my-picrawler/4992)
**Author:** [@s1mply](https://forum.sunfounder.com/u/s1mply)\ **Replies:** 1\ **Last updated:** [September 14, 2026, 9:44am UTC](https://forum.sunfounder.com/t/cant-connect-to-wifi-on-ezblock-for-my-picrawler/4992 "2026-09-14T09:44:33Z")
Hi, I’m using a PiCrawler with a Raspberry Pi Zero 2 W and the EZBlock pre-installed image. Bluetooth works correctly: EZBlock Studio sees the crawler and connects to it. The problem is the Wi-Fi Quick Configuration. It… --- ## [Initial login for PiCar-X EZ Block](https://forum.sunfounder.com/t/initial-login-for-picar-x-ez-block/4984)
**Author:** [@Newmy](https://forum.sunfounder.com/u/Newmy)\ **Replies:** 1\ **Last updated:** [September 11, 2026, 8:02am UTC](https://forum.sunfounder.com/t/initial-login-for-picar-x-ez-block/4984 "2026-09-11T08:02:00Z")
I was having trouble logging into the Ras Pi 4. I tried flashing with Balena and (after reading the Sunfounder docs) Ras Pi Imager. After a couple of hours back and forth with Chat GPT, Claude suggested the fix that … --- ## [Pidog-groove — PiDog V2 moves to ambient music, on-device tempo detection (no librosa)](https://forum.sunfounder.com/t/pidog-groove-pidog-v2-moves-to-ambient-music-on-device-tempo-detection-no-librosa/4960)
**Author:** [@Koua29](https://forum.sunfounder.com/u/Koua29)\ **Replies:** 0\ **Last updated:** [August 26, 2026, 8:47am UTC](https://forum.sunfounder.com/t/pidog-groove-pidog-v2-moves-to-ambient-music-on-device-tempo-detection-no-librosa/4960 "2026-08-26T08:47:22Z")
Hi all, Last one from my PiDog V2 tinkering: it listens to ambient music through its own microphone and moves its head and tail in rhythm. The tempo detection runs entirely on the Pi (no librosa): it locks onto the bea… --- ## [Pidog-energy — battery monitor for PiDog V2 (spoken charge level, thresholds in JSON)](https://forum.sunfounder.com/t/pidog-energy-battery-monitor-for-pidog-v2-spoken-charge-level-thresholds-in-json/4959)
**Author:** [@Koua29](https://forum.sunfounder.com/u/Koua29)\ **Replies:** 0\ **Last updated:** [August 26, 2026, 8:45am UTC](https://forum.sunfounder.com/t/pidog-energy-battery-monitor-for-pidog-v2-spoken-charge-level-thresholds-in-json/4959 "2026-08-26T08:45:37Z")
Hi all, Sharing another small open-source tool I made for my PiDog V2: a battery monitor. It reads the battery voltage and announces the charge level out loud, so you get a spoken heads-up before it runs low — handy si… --- ## [Pidog-voice — local French voice commands for PiDog V2 (Whisper + Ollama, no cloud)](https://forum.sunfounder.com/t/pidog-voice-local-french-voice-commands-for-pidog-v2-whisper-ollama-no-cloud/4946)
**Author:** [@Koua29](https://forum.sunfounder.com/u/Koua29)\ **Replies:** 1\ **Last updated:** [August 26, 2026, 8:31am UTC](https://forum.sunfounder.com/t/pidog-voice-local-french-voice-commands-for-pidog-v2-whisper-ollama-no-cloud/4946 "2026-08-26T08:31:55Z")
Hi all, I built an open-source voice-command system for my PiDog V2 and wanted to share it here. It runs entirely locally — speech-to-text with Whisper and intent classification with a small Ollama model (llama3.2) — s… --- ## [Pidog-patrol — patrol mode for PiDog V2 (sensors to walk, camera + vision model to understand)](https://forum.sunfounder.com/t/pidog-patrol-patrol-mode-for-pidog-v2-sensors-to-walk-camera-vision-model-to-understand/4951)
**Author:** [@Koua29](https://forum.sunfounder.com/u/Koua29)\ **Replies:** 0\ **Last updated:** [August 26, 2026, 6:59am UTC](https://forum.sunfounder.com/t/pidog-patrol-patrol-mode-for-pidog-v2-sensors-to-walk-camera-vision-model-to-understand/4951 "2026-08-26T06:59:45Z")
Hi all, Another open-source project for my PiDog V2: a patrol mode. It uses the ultrasonic sensor to walk around and avoid obstacles, and the camera plus a local vision model to describe what it sees while patrolling. … --- ## [PiCrawler Battery does not supply sufficient power for Raspberry Pi 5](https://forum.sunfounder.com/t/picrawler-battery-does-not-supply-sufficient-power-for-raspberry-pi-5/4093)
**Author:** [@Cautemoc](https://forum.sunfounder.com/u/Cautemoc)\ **Replies:** 14\ **Last updated:** [August 23, 2026, 11:18am UTC](https://forum.sunfounder.com/t/picrawler-battery-does-not-supply-sufficient-power-for-raspberry-pi-5/4093 "2026-08-23T11:18:42Z")
It seems like it requires 5 A while the batter pack only outputs 2 A (?). What would be the solution to this? Do I need to buy a whole new Pi board? --- ## [PiCar-V servo-install returns FileNotFoundError](https://forum.sunfounder.com/t/picar-v-servo-install-returns-filenotfounderror/4691)
**Author:** [@orca](https://forum.sunfounder.com/u/orca)\ **Replies:** 5\ **Last updated:** [August 19, 2026, 9:28am UTC](https://forum.sunfounder.com/t/picar-v-servo-install-returns-filenotfounderror/4691 "2026-08-19T09:28:52Z")
I’m setting up the PiCar-V and have gotten to the Servo Configuration section: Configure the Servo to 90 degrees. After rebooting, I followed the instructions to run “picar servo-install” but it’s returning with a FileNo… --- ## [Pixar-X v2.0, so brilliant, it will outsmart your coding AI](https://forum.sunfounder.com/t/pixar-x-v2-0-so-brilliant-it-will-outsmart-your-coding-ai/4925)
**Author:** [@klh2632](https://forum.sunfounder.com/u/klh2632)\ **Replies:** 3\ **Last updated:** [August 19, 2026, 9:27am UTC](https://forum.sunfounder.com/t/pixar-x-v2-0-so-brilliant-it-will-outsmart-your-coding-ai/4925 "2026-08-19T09:27:05Z")
One robot, 3 .nenv(s) in VSC MS Python 3.13 Extension. What a hot mess! Flash built with one Python version, Picarx with another, vilib with another, oops, forgot audio, that too. Gonna try downloading and rebuilding … --- ## [OpenAi.com credit needed for running test\_tts\_openai.py](https://forum.sunfounder.com/t/openai-com-credit-needed-for-running-test-tts-openai-py/4932)
**Author:** [@Will](https://forum.sunfounder.com/u/Will)\ **Replies:** 1\ **Last updated:** [August 18, 2026, 9:25am UTC](https://forum.sunfounder.com/t/openai-com-credit-needed-for-running-test-tts-openai-py/4932 "2026-08-18T09:25:04Z")
When running test\_tts\_openai.py (from 15. AI Storytelling Robot with Piper and OpenAI for the PiCar-X), I get the error: \[ERROR\] OpenAI TTS API request error: 429 Client Error: Too Many Requests for url: https://api.ope… --- ## [PiDog V2 Dual Touch sensor- need replacement](https://forum.sunfounder.com/t/pidog-v2-dual-touch-sensor-need-replacement/4919)
**Author:** [@sharkicicles](https://forum.sunfounder.com/u/sharkicicles)\ **Replies:** 1\ **Last updated:** [August 13, 2026, 9:25am UTC](https://forum.sunfounder.com/t/pidog-v2-dual-touch-sensor-need-replacement/4919 "2026-08-13T09:25:52Z")
Hi, When I was assembling my PiDog V2, I went to attach the wire to the dual touch sensor and the connector on the board came off. How can I purchase a replacement sensor? --- ## [My journey with my Pidog](https://forum.sunfounder.com/t/my-journey-with-my-pidog/4877)
**Author:** [@Pigmin](https://forum.sunfounder.com/u/Pigmin)\ **Replies:** 13\ **Last updated:** [August 7, 2026, 11:35am UTC](https://forum.sunfounder.com/t/my-journey-with-my-pidog/4877 "2026-08-07T11:35:37Z")
Hello everyone, I wanted to share some of the hardware and software modifications I have made to my PiDog. Hardware modifications Replaced the original legs/feet with TPU parts found on Bambu Lab MakerWorld. Replaced … --- ## [My Pidog V2 will not work](https://forum.sunfounder.com/t/my-pidog-v2-will-not-work/4907)
**Author:** [@Lycanroc1225](https://forum.sunfounder.com/u/Lycanroc1225)\ **Replies:** 1\ **Last updated:** [August 7, 2026, 7:26am UTC](https://forum.sunfounder.com/t/my-pidog-v2-will-not-work/4907 "2026-08-07T07:26:04Z")
So, I recently got a pidogv2, and I just cannot get it to work properly. The most that works is the speaker and the demos for the sounds it can make, but quite literally nothing else. I’m sure that I followed the instruc… --- ## [Servo motor for picrawler](https://forum.sunfounder.com/t/servo-motor-for-picrawler/4904)
**Author:** [@dlorfel](https://forum.sunfounder.com/u/dlorfel)\ **Replies:** 2\ **Last updated:** [August 6, 2026, 6:16am UTC](https://forum.sunfounder.com/t/servo-motor-for-picrawler/4904 "2026-08-06T06:16:17Z")
I have a Sunfounder picrawler where I need to replace servo motor. I see there are many servo motors on Amazon. Can someone please tell me the least expensive servo motor on Amazon I can purchase. If you can send me a… --- ## [Errors running 14.voice\_promt\_car.py example program](https://forum.sunfounder.com/t/errors-running-14-voice-promt-car-py-example-program/4902)
**Author:** [@Will](https://forum.sunfounder.com/u/Will)\ **Replies:** 3\ **Last updated:** [August 4, 2026, 7:53am UTC](https://forum.sunfounder.com/t/errors-running-14-voice-promt-car-py-example-program/4902 "2026-08-04T07:53:27Z")
When I run 14.voice\_promt\_car.py, it seems to run alright as far as what the PiCAR-X is supposed to do (talks and moves like it should), but I get these error messages: 2026-08-01 11:20:45.663101555 \[W:onnxruntime:Defau… --- ## [Help needed with Pidog V2 servo calibration](https://forum.sunfounder.com/t/help-needed-with-pidog-v2-servo-calibration/4882)
**Author:** [@Toymaker](https://forum.sunfounder.com/u/Toymaker)\ **Replies:** 1\ **Last updated:** [July 27, 2026, 8:44am UTC](https://forum.sunfounder.com/t/help-needed-with-pidog-v2-servo-calibration/4882 "2026-07-27T08:44:27Z")
Hi Group, I am new here, I am having trouble calibrating the Pidog V2 servos - my problem is that the right hand box/window is too narrow to see the simple calibration graphic as can be seen in the middle box - can anyon… --- ## [Speaker not working on PiDog V2 with RobotHat+ 5](https://forum.sunfounder.com/t/speaker-not-working-on-pidog-v2-with-robothat-5/4880)
**Author:** [@ChaiLord](https://forum.sunfounder.com/u/ChaiLord)\ **Replies:** 3\ **Last updated:** [July 23, 2026, 9:46am UTC](https://forum.sunfounder.com/t/speaker-not-working-on-pidog-v2-with-robothat-5/4880 "2026-07-23T09:46:49Z")
I can’t seem to get the speaker to work on the pidog v2 with the robothat+ 5. I’ve followed the tutorial by running sudo bash i2samp.sh and running robot\_hat enable\_speaker, but I have not been able to get sound to work.… --- ## [Pidog raspberry P4](https://forum.sunfounder.com/t/pidog-raspberry-p4/4878)
**Author:** [@Seb](https://forum.sunfounder.com/u/Seb)\ **Replies:** 5\ **Last updated:** [July 20, 2026, 8:59am UTC](https://forum.sunfounder.com/t/pidog-raspberry-p4/4878 "2026-07-20T08:59:16Z")
Bonjour, J’ai acheté il y a quelques mois un Pidog avec une carte mère Raspberry P4 modèle B , j’ai flasher plusieurs carte SD pour le coup et le module est bien installé et quand je le mets sur le chien la led verte re… --- ## [Servo spare parts](https://forum.sunfounder.com/t/servo-spare-parts/4749)
**Author:** [@benedetto\_t](https://forum.sunfounder.com/u/benedetto_t)\ **Replies:** 3\ **Last updated:** [July 20, 2026, 8:25am UTC](https://forum.sunfounder.com/t/servo-spare-parts/4749 "2026-07-20T08:25:08Z")
Is it possible to purchase or find on Amazon spare servos for Pidog robot? After some month of use one got damaged and I moved it to the tail, now a second one stop working as well. I would like to replace them and buy … --- ## [Compatibility with Fusion Hat+ and Pidog hardware](https://forum.sunfounder.com/t/compatibility-with-fusion-hat-and-pidog-hardware/4875)
**Author:** [@Pigmin](https://forum.sunfounder.com/u/Pigmin)\ **Replies:** 1\ **Last updated:** [July 20, 2026, 8:00am UTC](https://forum.sunfounder.com/t/compatibility-with-fusion-hat-and-pidog-hardware/4875 "2026-07-20T08:00:11Z")
Would it be possible, with a few software adjustments, to use a Fusion HAT+ instead of a Robot HAT V5 on a PiDog? The boards look very similar, especially the 12 PWM servo ports and the digital/I²C connections. I’m just … [Next page](https://forum.sunfounder.com/c/robotic-kit-for-raspberry-pi/10.md?page=1)