@karthikeyan Hello, so you can adjust the speed using the IR remote controller. Use the top left and right buttons to adjust the speed of the truck bot. The Leds on the top of the SmartInventor board will indicate what speed level it is set at. Let me know if this solves the issue you are facing.
Ask me anything about CoDrone.
Best posts made by robolink_arnold
RE: Truck Robot - Motor Issue
RE: Iinertial navigation
Hello @magnus so if you are talking about integrating the acceleration from the IMU to get velocity there is this great video https://youtu.be/C7JQ7Rpwn2k?t=23m47s around 23 minutes and 47 seconds It talks about the issues with attempting to do double integration. The biggest issue is that requesting the Imu data from the Drone takes around 50ms ~150ms so it may be to slow to do some filter on the Arduino/Python program. Let me know if you have any other questions.
RE: CoDrone Pro Pairing
Hello Once the remote has received a program, you must make the board go into "run mode" which is putting all DIP switches down. Once you have done that reset power to the remote (make sure everything is rest BLE module and Smart Inventor board). Once you reset it the remote, it should go into pairing mode (if you the program you made contains the functions CoDrone.begin(115200); and
CoDrone.AutoConnect(NearbyDrone); ). Pairing mode is indicated by the Blue LED's strobing inward. Check out this video
RE: Serial Monitor for CoDrone?
Hello, so what you are seeing is the communication between the CoDrone and the Bluetooth module. While the CoDrone is communicating with the Bluetooth module the serial monitor will not be available for your computer to use. You must use the function
You can check Arduino/files/examples/CoDrone/Control/SerialPrint_attitude for a proper example on how to do a proper serial print.
RE: CoDrone Pro No Remote Control Sync, No Communication with Mac
@johnnycurry Hello it appears that the remote may not have been in upload mode. Please check out this video it goes over how to upload a program to the remote. There are some key steps that need to be followed exactly in order for the remote to be in upload mode.
The timeout error usually indicates the remote is not in upload mode. (Blinking blue led on the right side & BLE module not flashing red)
The other possible error is selecting the computers internal Bluetooth port and not the /dev/cu..SLAB_USBtoUART
Please let me know if you have any other questions.
RE: Regarding Firmware update instruction bluetooth module
Hello @magnus which bluetooth update are you talking about? the BLE module update or the CoDrone update. Here is the link to the tutorial for both (page 3 and 5), there are some picture on how to do it there. Thank you for your feedback though!
RE: gyro sensor specification
hello @dracen The best way I can think of doing is with the python library. Grabbing the raw Imu data has the slowest update frequency since it is the biggest message sent over the bluetooth communication protocol. We are currently in the process of making tutorials on how to extract the sensor values from the CoDrone using python and I will post those here once we are done.
Latest posts made by robolink_arnold
RE: Teaching a zoom class with ZUMI
Hello @MrPowers What I can recommend is doing the following
- Succesfully connect the Zumi to a wifi network using a computer.
- Connect the computer back to the wifi that Zumi is connected to. (example: switch from zumi1234 -- > mywifi)
- On your chrome browser go to the following link (example for zumi1234)
http://zumi1234.local/ instead of zumidashboard.ai
- If everything worked fine the dashboard should load and you can use your internet network while using Zumi.
You can also use the IP address of the zumi for step 3. The IP address is visible in the setting gear icon on the "zumidashboard".
Here is video we made
Let me know if you would like to set up a video call to assist you.
RE: Zumi doesn't stop
You can also check out the FAQ https://learn.robolink.com/docs/zumi-faq/wont-stop-driving
RE: Programming: Ultrasonic Sensor
So it seems like some of the connections are incorrect
please check out the pins echo and trig are connected in the following image
they should be connected to 2 pins below the ones you have
Let me know if that resolves your issue.
RE: Ports Greyed Out
@dmars2001 I’ve looked at the images and I can see you have installed the silicon labs driver properly. Do you mind posting a picture of the CoDrone remote controller wiring and a screenshot of the Arduino IDE as you are trying upload?
Also, what kind of computer are you using? And what windows operating system are you running?
RE: Ports Greyed Out
Hello @dmars2001 I am trying to access the photos in order to assist you but it looks like I need permission.
If the color pattern is pulsing yellow you may need to follow the steps in this video https://www.youtube.com/watch?v=K4A2bkAxh3Y the color pattern you should get is the one at 1:11 in the video.
RE: Tips on speeding up reading the codrone camera in python?
Reduce the image captured size by scaling it down or simply just crop the area you need. If you have a 320X240 = 76,800 pixel image and you half the width and height you will have 160X120 = 19,200 pixels which significantly drops the number of math operations on each pixel. Let me know if that helps you out. Also it appears you are writing the image out.write(frame), comment that out and see if you notice a speed inscrease. I would recommend threading the program so you can thread the camera and the sensor updates.
RE: Forever Charging ..
@mneuhaus sorry I understand that is confusing. Unfortunately that message is only to indicate to the user that Zumi is in the charging state. When the switch is flipped to the off position all connections to the battery are disconnected.
Since the battery gets disconnected there is no way to sense what percentage the battery is at unless you flip the switch to on.
The Red LED is the only accurate way of indicating if Zumi is fully charged. If the switch is in the off position and a usb cable is connected the Red LED should turn on. Once the battery is fully charged the Red LED will turn off.
Let me know if you have any other questions.
RE: install help
Hello @ahudson ,
So one quick fix you can attempt is selecting an older version of the Rokit files. Next to install button is a version selection choose an older one.
Let me ask real quick about the CRC error I can get you an answer tomorrow.
RE: Is it possible to design a closed-loop control for codrone pro ?
@ahmadjordan hello you can check out this sample program from our documentation guide
https://support.robolink.com/codrone-library/getheight follow the code for Arduino and it will make CoDrone send you height data. Let me know if you have any other questions.
Have fun programming!
RE: Trouble getting real time feedback form sensors
@beraug Can you try running this code instead to verify everything works https://support.robolink.com/codrone-library/getgyroangles let me know what results you get.