<![CDATA[Need help]]>Hello,

I'm a french student and with my team we want to create a smart meter with a light sensor. So we bought 2 kit LoPy with 2 expansions board and 2 antenna. We want to connect this 2 cards far from them using LoRa but we don't have any knowledge on python. We only learned Arduino. So I want to know how to use a basic light sensor with the LoPy card.

]]>https://forum.pycom.io/topic/2933/need-helpRSS for NodeMon, 14 Sep 2026 05:06:20 GMTThu, 29 Mar 2018 08:58:36 GMT60<![CDATA[Reply to Need help on Thu, 29 Mar 2018 08:58:36 GMT]]>Hello,

I'm a french student and with my team we want to create a smart meter with a light sensor. So we bought 2 kit LoPy with 2 expansions board and 2 antenna. We want to connect this 2 cards far from them using LoRa but we don't have any knowledge on python. We only learned Arduino. So I want to know how to use a basic light sensor with the LoPy card.

]]>https://forum.pycom.io/post/17827https://forum.pycom.io/post/17827Thu, 29 Mar 2018 08:58:36 GMT<![CDATA[Reply to Need help on Thu, 29 Mar 2018 09:31:58 GMT]]>@mrbombastiks

Do you know what particular light sensor you will be using for your project? Some just provide an analog voltage, others have digital interfaces.

]]>https://forum.pycom.io/post/17829https://forum.pycom.io/post/17829Thu, 29 Mar 2018 09:31:58 GMT<![CDATA[Reply to Need help on Thu, 29 Mar 2018 11:43:13 GMT]]>@mrbombastiks You could have used a Pysense which has a light sensor built-in (if by light sensor you mean something that measures ambient light level).

]]>https://forum.pycom.io/post/17834https://forum.pycom.io/post/17834Thu, 29 Mar 2018 11:43:13 GMT<![CDATA[Reply to Need help on Wed, 04 Apr 2018 08:30:49 GMT]]>Hello, sorry for the overdue.

I'm using a basic lightsensor wich is used with arduino as you can see on this picture : text alternatif

]]>https://forum.pycom.io/post/18016https://forum.pycom.io/post/18016Wed, 04 Apr 2018 08:30:49 GMT<![CDATA[Reply to Need help on Wed, 04 Apr 2018 08:35:50 GMT]]>@mrbombastiks
If you need the value from your analog light sensor
then simply use ACD for this e.g:

from machine import ADC
adc = ADC(0)
light = adc.channel(pin='P13',attn=ADC.ATTN_11DB)
#read current light value
value = light()
]]>https://forum.pycom.io/post/18017https://forum.pycom.io/post/18017Wed, 04 Apr 2018 08:35:50 GMT<![CDATA[Reply to Need help on Wed, 04 Apr 2018 08:47:58 GMT]]>@livius
I'm actually using this code, because I'm looking to get the blink of the meter.

text alternatif

Know I need to find when the led is blinking, because he send everytime the value. I want to know how to check the difference between this value and the last one.

]]>https://forum.pycom.io/post/18021https://forum.pycom.io/post/18021Wed, 04 Apr 2018 08:47:58 GMT