Hello Friends!
I bought an Anemometer and dont know how to make a circut with breadboard. I mean I dont know how should I connect the wires to right places.
Anemometer link (Very Similar product):
http://www.ebay.com/itm/181741789708?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT,
Manual for anemometer is attached
Please help me guys
Wind speed sensor Shitongda 3.pdf (524 KB)
There seem to be several different types of output from the sensor (interface). PNP, NPN, NPN with pullup and RS232. Which interface does your sensor have?
Please post links to the actual product (not a "very similar product") and the actual product manual.
Most people won't open an anonymous file.
groundFungus:
There seem to be several different types of output from the sensor (interface). PNP, NPN, NPN with pullup and RS232. Which interface does your sensor have?
How can I determine this? Everything is Chinese about my product.
jremington:
Please post links to the actual product (not a "very similar product") and the actual product manual.Most people won't open an anonymous file.
You are right I'm sorry. Manual is completely the same, mine Chinese so I want you to see the English Version. Products are looking same too, even the color of wires are same. Mine model is SY-FS2.
Please attach the English version of the manual to your post.
jremington:
Please attach the English version of the manual to your post.
I attached it now.
On pages 5 and 6 of the manual, the options are specified. Are the boxes checked in the manual that came with your unit?
Hi, Document shows many options:
---------------------( COPY )---------------------
□ PNP output
□ NPN output with internal pull (4.7KΩ)
RS485 communication type
Voltage output type: □ 0-5VDC
□ 0-10VDC
Current Output: 4-20mA
Power: □ DC 5 ~ 24V
□ DC 12 ~ 24
-----------------( END COPY )----------------------
What version do you have??
terryking228:
Hi, Document shows many options:
---------------------( COPY )---------------------
- pulse output type: □ NPN output
□ PNP output
□ NPN output with internal pull (4.7KΩ)
RS485 communication type
Voltage output type: □ 0-5VDC
□ 0-10VDC
Current Output: 4-20mA
Power: □ DC 5 ~ 24V
□ DC 12 ~ 24
-----------------( END COPY )----------------------What version do you have??
I will learn it but I guess it must be Voltage Output: 0-5VDC. If we assume it is like that,
do you have any idea how to create the circut?
Features of the anemometer.
Model: SY-FS2
Range: 0-30m/s
Output: 0-5V / 4-20mA
Required DC = 9-24VDC
Wiring: Red: + Black: - Yellow: Voltage Signal Blue: Current Signal
Any ideas?
mertdal77:
Features of the anemometer.Model: SY-FS2
Range: 0-30m/s
Output: 0-5V / 4-20mA
Required DC = 9-24VDC
Wiring: Red: + Black: - Yellow: Voltage Signal Blue: Current SignalAny ideas?
Before you hook anything to your arduino, Apply your 9-24 volts to power the device. + voltage to red. - voltage to black. Then connect your volt meter + to the yellow wire and the meter - to the black wire.
Spin the anemometer and see if you get any voltage readings on your meter. That will be your 0-5 volts that your Arduino will be reading. If you don;t see any volts, and you have connected the wires as stated, then stop, you have more research to do.
Paul
If you really have the 4-20mA output, connect a 220 Ohm resistor from the output to ground, and read the voltage across the resistor. It should range from about 0.9 V to 4.4V.
I have just tested my anemometer and found that it has (0-5)V output. Now, do you have any idea how should I connect my anemometer to Arduino Uno.
I am a mechanical engineer and it's my first project with this kind of principle. Please help me!
The analog inputs (pins A0 to A5) accept a 0 to 5V signal and convert that to an number between 0 and 1023 using the analogRead() function. From there you would determine the voltage and apply a scale factor to convert to wind speed. Does your manual define the scale factor, maybe in volts per mile per hour or volts per kilometer per hour?
groundFungus:
The analog inputs (pins A0 to A5) accept a 0 to 5V signal and convert that to an number between 0 and 1023 using the analogRead() function. From there you would determine the voltage and apply a scale factor to convert to wind speed. Does your manual define the scale factor, maybe in volts per mile per hour or volts per kilometer per hour?
Yes sir, in order find the wind speed (m/s), I have to multiply the volt value with 6.
Here is an example sketch to read the anemometer 0 to 5V output. You can adjust the reading interval to suit. Measure the actual analog reference voltage (5V Vcc) and enter where indicated for better accuracy.
// anemometer reading sketch for forum member. By C. Goulding
const byte analogInPin = A0;
// measure the actual 5V supply voltage
// and enter here
const float analogReferenceVoltage = 5.00;
unsigned long windReadingInterval = 1000; // read wind speed 1 per second
float windSpeed = 0;
void setup()
{
Serial.begin(115200);
}
void loop()
{
static unsigned long windReadingTimer = 0;
if (millis() - windReadingTimer >= windReadingInterval)
{
windReadingTimer = millis();
int adcReading = analogRead(analogInPin);
float voltage = analogReferenceVoltage / 1023.0 * adcReading;
windSpeed = voltage * 6.0;
Serial.print("Wind Speed = ");
Serial.print(windSpeed, 1); // print wind speed with 1 decimal
Serial.println(" kph");
}
}
Connect as shown. The 1K resistor adds some protection for the analog input and the capacitor will filter out higher frequency noise for a more stable reading.
groundFungus:
Here is an example sketch to read the anemometer 0 to 5V output. You can adjust the reading interval to suit. Measure the actual analog reference voltage (5V Vcc) and enter where indicated for better accuracy.// anemometer reading sketch for forum member. By C. Goulding
const byte analogInPin = A0;
// measure the actual 5V supply voltage
// and enter here
const float analogReferenceVoltage = 5.00;
unsigned long windReadingInterval = 1000; // read wind speed 1 per second
float windSpeed = 0;
void setup()
{
Serial.begin(115200);
}
void loop()
{
static unsigned long windReadingTimer = 0;
if (millis() - windReadingTimer >= windReadingInterval)
{
windReadingTimer = millis();
int adcReading = analogRead(analogInPin);
float voltage = analogReferenceVoltage / 1023.0 * adcReading;
windSpeed = voltage * 6.0;
Serial.print("Wind Speed = ");
Serial.print(windSpeed, 1); // print wind speed with 1 decimal
Serial.println(" kph");
}
}
Connect as shown. The 1K resistor adds some protection for the analog input and the capacitor will filter out higher frequency noise for a more stable reading. 
I am going to try tomorrow and inform you sir, Thank you!
