I'm trying to use the bittle but upon boot up it's making the first melody in the "Decoding the Melodies" video whenever I try to calibrate it it won't connect and whenever I try to factory reset it it's caught in a loop asking if i want to reset calibrations, any advice? it also no longer connects via bluetooth the sensor is red and makes the same beeping noise no matter what's connected
Hello,
If this has been answered already I apologize, I could not find a similar issue in other posts.
I've assembled and tested my kit, and it was working properly, but now it seems one servo output is not working- in calibration mode it never moves. To confirm my suspicion that the board servo output port is bad, I did the following:
Checked connector mate is good pins: on Nyboard (v 1.2) look good.
I tested the servo that wasn't working by plugging it in another port, it moved as expected.
Tried another known good servo in the bad port.
Hi,
You have tried good methods to debug. Here's a complete routine to locate the problem: https://docs.petoi.com/technical-support/faq-frequently-asked-questions#the-robot-servos-dont-seem-to-be-working.-how-to-debug-the-servos
There's a spare servo in the package for timely fix. Meanwhile, please write to support@petoi.com to request a replacement.
Hello, I am stuck with a problem with ros serial communication from a raspberry Pi zero running Raspbian Buster server image and ROS Melodic following instructions from https://www.hackster.io/dmitrywat/bittle-teleoperation-with-ros-and-raspberry-pi-22c454 By Dmitry Maslov
As far as I can tell the master Ubuntu 20.04 and slave on the raspberry Pi zero are working correctly, I have used the appropriate permissions
sudo usermod -a -G dialout,tty pi
sudo usermod -aG tty pi, and enabled serial trough raspi-config.running master and slave gives me velocity messages in terminal when I steer using rqt_robot_steering and I get a video feed from the USB cam. When a command is sent from the rqt_robot_steering GUI, I get a beep but the robot doesn’t move.
This is not a hardware problem. I used the steps from the Petoi ros page https://docs.petoi.com/apis/rosboth nodes ran perfectlyrosrun opencat_server opencat_service_nodesending command below was executed perfectly.rosrun opencat_examples opencat_examples_client_cpp
I've had quite the battle with frame rate. Playing with compression and image size, I've been able to get mid 20 frames per second on the Pi zero, and low 30s with the Pi 4. I do about 50-60% compression with the 4, with 640x480, and 75% compression with 320x240 on the Pi zero. Typically it will start off with low latency, but increase and the average frame rate won't change drastically, but the maximum time for image transmission increases substantially, sometimes up to 30s. For the Pi zero the latency increases within a minute or so, while the pi 4 will stream well for about 5 minutes straight.
Exception in Tkinter callback
Traceback (most recent call last):
File "tkinter\__init__.py", line 1705, in call
File "Calibrator.py", line 31, in <lambda>
File "Calibrator.py", line 127, in calibFun
IndexError: list index out of range
Thx. WHen I tried through Ard-IDE, I realised that I put the (RPI-Ardu switch in a wrong position. At least, it was resolved after this change (or after something else)....
Please try to use the latest version (V1.1.9) of Petoi Desktop App to Factory reset. If you still have problems, you can contact us by email (support@petoi.com); please attach a short video or screenshots with the uploading log. Thanks a lot.