What will it do?
My final project will be a weather indicator with some creative outputs. I want each input or output to be interchangeable so it will can remain in development and function as an educational playground for myself that I can keep on adding features to. I will enclose this in a lighthouse sculpture. For a start a want to have a servo motor open the windows based on humidity measurements, and then a speaker that playes diffrent tones based on Barrometric sensor readings, My original idea was to have a windpipe instrument that plays the tones but that could be developed later if there is time but it has multible features to be solved, Aircompression, Windbarn, solenoides or stepper driven tone control, design of pipes and so on.
Who's done what beforehand
There are multiple weatherstations around, but beying creative with the outputs is the only difference, although I guess Sensor driven window openers are already in many greenhouses for instance. If I will manage with a windpipe I have found a solenoid driven harmonica:
and there is a 3d printed whistle and flutes
Materials
I will need to decide outer structre material, mdf or plexiglass. plywood for test version Basic version needs?
- Humidity sensor https://www.sparkfun.com/products/11824
- Servo motor controlboard
- Servo Motor for windows
- Window opening mechanism (3d printed?)
- miniature hinges for windows? (3d printed?)
- Barrometric sensor module https://www.sparkfun.com/products/11824
- speaker board and speaker
- Lighthouse shaped enclosure, laser cut.
Where will they come from
Almost everything can be fabbed, The barrometric module will be bought from a Sparkfun vendor and motors bought in electronics shop. Other boards will be milled and window opening mechanism 3d printed.
Cost
Cost of the final project as submitted in the end of fabacademy:
-
INPUT:
Temrature board.
- Atmega328 4.25$
- R 10k 0.1$
- U 1uf 0.1$
- 6 pin header X2 8.50$
- 2 Pin header connector 2$
- 4pin header 4.50$
- DHT11 sensor 1.94$
-
HUB:
- 4 pin header X2 9$
- 6 pin header X2 8.50$
-
OUtPUT: Motorised window opener.
- Attiny 44 3.25$
- XTAL 20mhz 0.3$
- R1 10k 0.1$
- C1 22uf 0.1$
- 4 pin header 4.50$
- 6 pin header X2 8.5$
- IC2 5v 0.6$
- Servo Motor 6$
- half PCB plate for these is 2$.
- wires and connectors 3$
-
Housing:
- 3mm Plexy plate(without internal structure) X2 24.7$
Total cost for the project was around 91$
what parts and systems will be made?
- Servo motor controlboard
- Window opening mechanism (3d printed?)
- miniature hinges for windows? (3d printed?)
- speaker board
- Lighthouse shaped enclosure, laser cut.
what processes will be used?
Cad, Laser cutting, 3d prinding, electronic design, input devices, output devices, embedded programming.
what tasks need to be completed?
- buy Barrometric module
- buy speaker
- Design and make speaker board
- Design and make Servo motor board
- Get humidity sensor working
- Design and make window opening system
- Program boards and network them
- Design and make a lighthouse enclosure
what questions need to be answered?
- how big is thing going to be?
- how many windows, how big, do they all open at the same time?
- how do I program this thing?
What is the scedual
keep calm and make things
How will it be evaluated?
Input connects with output on at least one of the modules and it will look like an lighthouse.