Unable to connect to dev board after the first boot - google-coral

I went through the setup procedures from the Doc and was able to get the device up and running but when I try to connect to the device the next day no devices show up.
Below are the steps I try:
I connected the usb type c power port and the OTG data port.
I ran mdt devices and fastboot devices, both commands show no device
Then I try to went through the whole procedure again and I got the same result as discuss in this post.
Any help would be appreciated. Thank you

For those who have experienced the same problem:
make sure that the TPU is connected to the board. If it is not connected when you power up the board the LED will not light up.
I accidentally disconnect it when I try to put the board in a 3D printed case.
I was able to fix this issue by making sure that the board is connected to the TPU.

Related

DJI iOS SDK (Swift) - App cannot connect to aircraft when iPhone is connected to the Mavic remote controller via USB

I have made the simplest app possible to connect to a Mavic Pro (basically the Swift version of this code (which comes from the Aircraft Binding and Activation demo on DJI's website.
My setup is as follows: iPhone running the App is connected via lightning cable to the main USB port on the RC (between the two joysticks on the bottom). The switch on the Mavic is set to "RC" (not Wifi).
When I run the app, the aircraft binding state is unknown and the DJISDKManager.product() returns nil, even though registration of the app completed successfully.
Here are some strange but helpful pieces of information:
With the same setup as above, running the DJI Go App from the same device works perfectly.
Using either the wireless bridge app or the wifi connections works perfectly and I'm able to connect with the aircraft no problem.
Is there some setting I'm missing? I looked at all of DJI's documentation very carefully, and have found no solutions.
The hardware accessory (the remote controller) may be associated with DJI Go now. With your app open, un-plug the lightening cable, and plug it back in. Now it will be associated with your app. With iOS 11 apps sharing hardware devices got a bit challenging.
(but thanks for mentioning DJI Go did work, then we don't have to worry the microUSB in the upper left corner of the RC was activated. Leaving the pigtail connector in will block the USB port you are using.)
I almost had the same problem. Here is the fix that worked for me.
Make sure in your info.plist file you have the following.
DJI-SDK
Also I am assuming that you calling DJISDKManager.startConnectionToProduct() after appRegisteredWithError(_ error: Error?) is called.

NXP Pico i.MX7D Device not detected in MacOS

Following this setup guide: https://developer.android.com/things/hardware/imx7d.html
I am using USB Type-C cable to connect the board and the computer. The computer is using MacOS.
I am unable to flash a default image into the device and throwing the below error:
Looking for devices... This can take up to 3 minutes.
No device has been detected. Is your device correctly plugged in?
If it is already connected, try disconnecting it, then reconnecting it again.
Error: could not prepare device: no device was found: timed out
Stopping adb server...
Stopped adb server..
Can someone help in providing details for the reason it is failing to detect?
I went through the same problem . I disconnected the touch screen , rainbow hat etc and then tried it worked for me. Also it is sometimes like the cable is not connected properly which may cause the issue . Once the cable is connected you will get a green light on the board . Also in case of windows 7 you may have some missing drivers .
Disconnect all your add on devices including LCD Screen/Touch Screen, camera, rainbow hat everything.
and then redo the process
It will Work !!
FYI I just had this problem, it was the USB hub! :)

wifi issue in Compaq 15-s004TX Notebook

My laptop has windows 10 but suddenly I encountered Wifi range issue that means my wifi is detecting wifi about one meter but not above that.I also reinstalled windows 10 but still problem exist.
what should I do?
Well the first thing to try would be to open up your laptop. From there you can take a look at the wifi card. It is possible that there is something obstructing it or its not fully in or anything.
The second option which is likely the one you will have to take is to purchase a cheap usb wifi adapter. They can be had for around $10 on Amazon usually. You can get them pretty much anywhere you can buy computers and tech products though.

Beaglebone defaults to WiFi AP mode?

I've been struggling to get wifi working on my BBB for the better part of a week now. I sort of succeeded at one point, but I couldn't tell how I did it. Anyway, long story short, I noticed this morning that when I start a fresh debian image with my Edimax usb wifi installed, it defaults to AP mode and is broadcasting a SSID called "Beaglebone-710C". This makes sense with my problems because I could see the wifi dongle and see it was recognized, but I couldn't scan or connect. Does anyone know why it would default to AP mode? I think it might have something to do with me accessing the beaglebone via command line over USB? Thoughts? thanks!
Try the following after logging in your BBB via SSH on the USB connection:
http://www.erdahl.io/2016/07/beaglebone-green-wifi-bluetooth-connect_18.html

how to connect an ios device to a Hotspot driven by hostapd

I met a problem to connect an ios device to the hotspot driven by hostapd which runs on my arm board.
IOS device will take a long time to connect, at last, the wifi signal is shown on status bar, and also got the ip address, but the circle, by the ssid side, won't disappear, it always turns round. This will make user think that the wifi doesn't connected yet, but it really connected.
I have tried some devices to connect the hotsopt, such as android cell phones, windows laptop, they all work correctly.
PS. My English is not good, I hope you could understand what I mean.
if the "circle by the ssid side" keeps showing ,i think your device is still trying to get ip address.
could you please provide us with more detail messages? such as your hostapd configure file and your dhcpd configure file.

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