I just bought new ESP8266 wifi module 5 days ago and looks like below:
Black colour
No Ai Thinker text
No Ai Cloud text
Cost : 7~10 $
I have tried many ways/websites/advices to make it works but I got nothing.
None AT command works
Flash new firmware keeps fail
Blue light blinking tutorial works
Official websites that I have go through it's step but doesn't work:
Instructables
Github
Stackoverflow
Espressive
Youtube
Thingspeak
Ubidots
I have start my dev on this esp since 4 days ago
Please help me đŁ
The ESP8266-01 boards are not breadboard-direct friendly. You'll find it easiest to attach some female-male jumper cables on the appropriate pins.
To flash the chip, this is the pinout you'll need.
ESP01 (left) and FTDI (right)
CH_PD + VCC = 3.3V (aka VCC)
GND + GPIO0 = GND
RXD = TXD
TXD = RXD
Related
I am looking to use a beagle bone black with codesys to read signals through the CANBUS.
I am following the instructions from codesys on how to install their software on the beaglebone. The first thing is to flash the BBB with the latest debian image. For this I am using Balena etcher, which says it has completed successfully. It has taken about 4GB on the SD card and I cannot view the files as they are in a partition, is this correct?
Following the usual intrustions like :https://beagleboard.org/getting-started#:~:text=The%20access%20point%20password%20defaults,8. doesn't make the 4 LED's light up in the pattern like I've seen on videos. And therefore the image hasn't flashed?
I started to follow the instructions : Unable to Flash eMMC from SD Card BeagleBone Black however when I use the line "sudo nano boot/uEnv.txt" I get the error "Directory 'boot' does not exist".
Does this mean there is an issue with the image? However, I have used more than one SD card and re flashed them etc.
Any help would be great!
I have an analog camera with AV output and I was looking to interface it with raspberry pi 3.
I am looking forward for some guidance on the same.
Thanks.
its very simply provided you follow the steps meticulous. First of all you should have the 3.5mm 4 pole cable connect the pole with yellow white red RCA cables respectively as shown in the image.
It should be as specified in the picture to work.
Second, once we have connected the RCA cable to TV set,
see to that we follow the exact instructions given here in this link.
click here
See to that hdmi_force_hotplug=1 is commented out. It is needed because you are bypassing the video output to RCA instead of HDMI. See to that the sdtv_mode=2, i.e. normal PAL, has been uncommented. Reboot and it is good to go...
Using the supplied Android demo from
https://developer.sony.com/downloads/all/sony-camera-remote-api-beta-sdk/
Connected up to the WIFI connection on a Sony QX1. The sample application finds the camera device and is able to connect to it.
The liveview is not displaying correctly. At most, one frame is shown and the code hits an exception in SimpleLiveViewSlicer.java
if (commonHeader[0] != (byte) 0xFF) {
throw new IOException("Unexpected data format. (Start byte)");
}
Shooting a photo does not seem to work. Zooming does work - lens is moving. Camera is working fine when using the PlayMemories app directly, so no hardware issue.
Hoping from advice from Sony on this one - standard hardware and demo application should work.
Can you provide some details of your setup?
What version of Android SDK are you compiling with?
What IDE and OS are you using?
Have you installed the latest firmware? (http://www.sony.co.uk/support/en/product/ILCE-QX1#SoftwareAndDownloads)
Edit:
We tested the sample code using a QX1 lens and the same setup as you and were able to run the sample code just fine.
One thing to check is whether the liveview is ready to transfer images. To confirm whether the camera is ready to transfer liveview images, the client can check âliveviewStatusâ status of âgetEventâ API (see API specification for details). Perhaps there is some timing issue due to connection speed that is causing the crash.
when i am playing with my Pixelsense apps in surface mode OR in Surface Cell (Test mode) , my pixelsense device is active until I play my apps , as I stop playing with apps after 5 min the device goes to sleep mode .
I wants to active my device always, even though user is not interacting with apps . Is it feature of Pixelsense device which make device in sleep mode OR it is part of my application.
Please help me.
Thanks & regards
Anupam Mishra
I got the solution , I would like to share the link
http://technet.microsoft.com/en-us/library/gg697101.aspx
From the above link you can change that on your device to whatever you need with a registry change.
Thanks
I'd like to be able to decide if the display on the computer where my app is running is currently active or shutdown. I need this for a media center software so I know if I need to activate the display before starting the playback of movies.
So far I tried to use this code:
CGError err0 = CGDisplayNoErr;
CGError err1 = CGDisplayNoErr;
CGDisplayCount dspCount = 0;
err0 = CGGetActiveDisplayList(0, NULL, &dspCount);
CGDisplayCount onlineCount = 0;
err1 = CGGetOnlineDisplayList(0, NULL, &onlineCount);
// Error handling omitted for clarity ;)
NSLog(#"Found %d active and %d online displays", dspCount, onlineCount);
But this code out puts always the same. When I try it on my mac mini, with the display turned off I get the following output:
Found 1 active and 1 online displays
The display is not in a standby mode as I disconnect the power to it when it is not in use. I also tried this on my mac book, which has an internal and an external display. And there it returns:
Found 2 active and 2 online displays
Here it is the same, I deactivate the display and disconnect the power to it but is still returns as beeing active.
The display on the mac mini is a tv-set connected with a dvi to hdmi cable. The display on the mac book is connected with a dvi to vga connector.
I hope somebody has an idea how to solve this. Thanks in advance.
It sounds like you want to know whether any connected display is asleep or not?
Have you looked at the CGDisplayIsAsleep function?
http://developer.apple.com/library/mac/documentation/GraphicsImaging/Reference/Quartz_Services_Ref/Reference/reference.html#//apple_ref/c/func/CGDisplayIsAsleep
To close this open question. My final findings were that as soon as an external monitor is connected to the computer the given methods will return that it is there. And this also works when the monitor is powered of and not connected to the power source.
So as far as I can tell there is no way to find out what I would like to know :(
As I control the event which activates the monitor from my application (in my case its a TV which I control with a usb to ir box) I can get the state of the monitor in this way, but this only has the downside that when the application is crashing, I will lose the state. But thats the best solution I could find.