Materials

This section list all the components that you need to build the 4onse-mod weather station.

• Sensors
• Control devices
• Items for solar shield
• Tools

Sensors

Sensor name	Observed property	Voltage	Datasheet	Photo	Price (USD)
DS18B20	Temperature	from 3 to 5V	link1		~ 3
BME280	Pressure/humidity	5-3.3V	link2		~ 11
DHT11	Temperature/humidity	5V	link3		~ 5
Wind speed	Wind speed	5V	link4		~ 25
Wind direction	Wind direction	5V	link4		~ 26
Davis aerocone 6465	Pluviometer	5V	link5		~ 100
YL-69	Soil moisture	5V	link6		~ 1.5
BH1750	Light	5V	link7		~ 5
Total price	~ 176.5 USD

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Control devices

Sensor name	Description	Voltage	Datasheet	Photo	Price (USD)
LM393	Soil moisture adapter	5V	link8		see YL-69
DS3231	RTC	5V	link9		~ 5
OpenLog	Data logger	5V	link10		~ 15
SIM800	GPRS	5V	link11		~ 25
Step-down	Step-down	from 12 to 5V	link11		~ 7
Step-down	Step-down	from 12 to 7V	link11		~ 7
Arduino Mega 2560	Microcontroller	7V	link12		~ 40
Total price	~ 99 USD

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Miscellaneous

Item	Type	Pieces	Price ~ (USD)
Screw	M3 x 6 mm	24 pcs	1
Spacer	M3 x 10 mm - Female/Female	12 pcs	0.9
Screw	M2 x 6 mm	14 pcs	1
Spacer	M2 x 10 mm - Female/Female	7 pcs	0.7
Screw	M2 x 16 mm	14 pcs	2
Bolt	M2	14 pcs	1.2
Screw	Size as needed to fix plexi to the box	2 pcs	1
Terminal	Terminal block, barrier 12POS	5 pcs	7
Corrugated tube	M20 x 20 m	1 pcs
Plexiglass	4x210x250 mm	1 pcs	6
Plastic box	300x220x120 mm	1 pcs	20
Cable	5 meters black and red	1 pcs	4
Jumpers	Black male/female (20 cm)	5 pcs	0.5
Jumpers	Red male/female (20 cm)	8 pcs	0.9
Jumpers	Blue male/female (20 cm)	4 pcs	0.4
Jumpers	Green male/male (20 cm)	2 pcs	0.2
Jumpers	White male/male (20 cm)	2 pcs	0.2
Jumpers	Green male/female (10/11 cm)	1 pcs	0.05
Jumpers	White male/female (10/11 cm)	1 pcs	0.05
Jumpers	Violet male/female (20 cm)	2 pcs	0.2
Jumpers	Orange male/female (20 cm)	2 pcs	0.2
Jumpers	Yellow male/female (20 cm)	2 pcs	0.2
Jumpers	Black male/female (10/11 cm)	1 pcs	0.2
Jumpers	Red male/female (10/11 cm)	1 pcs	0.2
Resistor	4.7 kΩ	1 pcs
Resistor	10 kΩ	2 pcs

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Items for solar shield

Item	Type	Pieces	Price ~ (USD)
Threaded rod	M3 x 20cm	3 pcs	6.2
Bolt	M3	3 pcs	0.2
Blind bolt	M3	3 pcs	0.2
Screw	M3 x 5 mm	2 pcs	0.2
Spacer	M3 x 10 mm - Female/Female	1 pcs	0.1
White plant saucer	diameter 20 cm	7 pcs	11
Junction box	D80 mm x H50 mm	1 pcs	5.5
Cable gland joint	M20	3 pcs	1
Plastic tube	6M x 1 m	1 pcs

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Tools

Item	Type	Pieces
Screwdriver	precision set	1 pcs
Multimeter	to check voltge/current	1 pcs
Cable stripper/cutter		1 pcs
Drill	bits M2, M2.5, M3, M4	1 pcs
Welder		1 pcs
Pond for welding		1 pcs

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