Photon base shield and GROVE temp & humidity sensor .. ¿Analog or digital interface?

Products & Technology Grove
#1

Hi everyone, I’m creating my first IoT project and I chose the Photon as my platform to develop the prototype.



I’m working with GROVE sensors and with a Particle Photon Base Shield.



One of my sensors is the Grove - Temperature&Humidity Sensor Pro（AM2302).



I readed the wiki section:



<LINK_TEXT text=“http://wiki.seeedstudio.com/Grove-Tempe … Sensor_Pro”>http://wiki.seeedstudio.com/Grove-Temperature_and_Humidity_Sensor_Pro</LINK_TEXT>



And it says: Signal pin mode: digital. Also, below (In the Arduino section) you can read too:



“Step 1. Connect Grove - Temperature&Humidity Sensor Pro to port D2 of Grove-Base Shield.”



So I thought it was a digital sensor; but in the bag of the sensor there is a sheet of characteristics and it says that it’s an analog sensor.



so … ¿Where should I connect the sensor? A digital interface or an analogic one?



Thanks a lot.

#2

Hi:

AM2302 is a digital sensor. It should be connected to the digital interface.

It includes a capacitive moisture sensing element and a high precision temperature measuring element, and is connected with a high performance 8-bit microcontroller. It communicates with the outside via ONE-WIRE.

AM2302 pin assignment:

1. VCC

2.SDA

3.NC

4.GND

#3

Hi there,



It is digital sensor. We will check the package with product manager and update if it is wrong. thanks for pointing it out. thanks,



Bill

#4

Thanks a lot for your support.