I want to make a bms home system with 8051.But i don't know wich microcontrollers to use.To be specific i need a: 1 microcontroller that can communicate with wifi because i want to control the entire system via my pc b:unknown number of microcontrollers which they were connect with the wifi microcontroller.Also in these microcontrollers will connect the d/a and a/d converters for the sensors.
*For this project will i need any other chips except controllers,converters and the "typical" max232, etc...? *To make the network between all the controllers which protocol do you recommend?will i need specific controllers to make the netwrok?
plz help.... Thanx
Don't jump at ZigBee just because it was suggested. It is one of many alternatives, and we do not know what alternative that would be best for you.
Look at the simple RS232 send/receive modules that you can find too.
One thing you haven't mentioned is how you will power your units? If running on batteries, then you should definitely consider ZigBee. If you have other power, then you have more alternatives.
You should also consider your budget. ZigBee is intended to be used with one radio module in every controlled device, so you do not have any cables. If you design own solutions, you may decide that it is enough to have just a few radio control points, and then switch to cable to formward information to other devices. That depends on the cost for you to aquire the radio modules compared to the cost and work to buy and draw wiring.
What distances do you need to cover? Will everything be in one room? A one-floor apartment? A house with cellar?
Look,first of all I think i forgot to mentioned something.This project is for university.So the money is not a big problem.I can afford a 300-500 €.But i don't know if this budget is enough.I will use some mc,about 8-10 sensors,and then i will need some chips for the networks.Is it possible to be done with 300€? Then i don't think serial is a good idea because a similar project with rs232 has be done.So i would like something different and i thing zigbee is a good idea.But if you can i need some more practical informations about zigbee such as i will have to place a radio module in every sensor,in every mc or i will need 1 for the whole circuit.Then if i will make it with zigbee i will need and another protocol for the mc netwrok?
In that case, a key part of the project is for you to do your own research!
Your assessors will be looking at how you researched the available technologies, and how you applied the results of your research...