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Wi-fi direct peer to peer communication specification
Hi,
Is there anyone working on wi-fi direct? I want to ask few technical questions regarding it. (I am asking this question because I haven't seen any related post.)
I am in need of the Wi-fi direct specification for peer-to-peer...
Hi,
I am an embedded system engineer, but almost newbie in wireless communication. I will have to design a custom protocol for sets of speedy mobile devices which will communicate reliably without connection (I don't know if this term is right,please correct me), unlike to wifi which need to...
Hi,
The cable is twisted pair cable (2 wire). The data is Manchester coded. Data speed is 2.5 MB/s. We know the protocol of the data. So, I think we can extract the data from the RAW data. But collecting data is the problem so far.
In this network only "master" saves the data and controls the...
Hi,
I will have to collect data from a digital trasmitting cable whose protocol is known and data is not encrypted. How to listen to data without hurting the regular data flow (electrically without voltage or current drop) ?
Any idea?
FYI, this is not any illigal hacking project. This is...
The best one is the "AT command manual" you got from the manufacturer. Specially for the manufacturer specific functions you must to have that.
You can use the following tutorial for general understanding of how things work-
https://www.developershome.com/sms/
Hope that helps.
vs6724 buy
Hi,
GetDeviceInfo >> Well, using a camera and controller will make the system huge and power consumption will increase. So, I will rather prefer camera modules.
GSM Man >> Thanks, I have seen that module before. But I have no idea on it's protocol and how it's picture quality. Did...
apc replace car battery
I understand, thanks for you suggestion.
Well, charging part can be primarily ignored. But what about the heat sink or circuitry? Are you sure this will be a problem?
Say a UPS is supposed to backup for 15-20 minutes where as I expect it to backup at least for an...
Hi,
I am working on security camera which will take snaps and send through GPRS to server.
I need a cheap but better (price-quality trade off) camera module with jpeg compression which can be connected with ARM7 microcontroller via serial, SPI or IIC. Camera resolution should be >1Megapixel...
apc ups car battery
Hi,
I have a UPS whose battery is 12v, 7.2 AH sealed lead acid battery. The battery is damaged.
Now I want to replace that battery with lead acid car battery. So that I can add lights, fan, laptop charger etc instead of desktop computer. And I also expect it to support for...
Thanks a lot Audioguru and trekkytekky for your replies.
I now understand that inverter is required anyway.
In many circuits I see people designing circuits with transistors or MOSFETs. Isn't there any ready made inverter?
Hi,
I want to use 26v energy saving bulb with battery at my home.
Is it possible to power Energy saving bulb using 12v 7.2aH battery? How to do it without using any inverter ?
Is the energy saving bulb runs in DC? What about fluorescent lights (40/45 watt)?
Please share some schematics...
Yes, your friends are right. GPS doesn't work under heavy concrete on inside buildings.
You can buy an GPS antenna with long wire and put that in open air. DONE!
I hope this helps you :)
Hi,
One of my devices do the following-
1. It connects to server using TCP/IP (TCP)
2. Server sends 10 byte long ASCII key to the device.
3. Device responds with 120 byte long ASCII string and then close connection.
Now I am to calculate exactly how many bytes were sent by the device and server...
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