I need good help for my project.
I made embedded board with ATMEGA128A to control air conditioner and also make a monitoring program with delphi to control and to monitor 18 sets of air conditioners with embedded boards.
The air conditioners are installed at the each top of elevators.
I have two kinds of problems.
1) When I read adc to get the temperature, the adc value is varied, not steady.
2) There are lots of noises in pits of elevators and I had to use two straight lines for communication, not twisted pair wires.
So, I use powerline communication chips to connect embedded boards with pc. But there are many communication errors now.
I will provide the schematic, pcb layout, firmware, monitoring program which are made by me.
I want someone to solve these problems.
Hello Sir. I can do what you need with quality and reliability. Please read more about me and about my proposal at on the Private Messages box. Thanks for your time!
22 freelancers are bidding on average $545 for this job
My company builds electrochemical measurement devices including temperature measurement (and T is really the easy part). Our instruments can communicate over 100m and more.