[Microbit-Python] Microbit DHt11 temp and humidity sensor

[Jim Mussared]

I just realized you had the sensor details in the subject line - DHT11.

It looks a lot like a 1-wire device -- datasheet at
https://cdn-shop.adafruit.com/datasheets/DHT11-chinese.pdf (and
similar to https://cdn-shop.adafruit.com/datasheets/DHT22.pdf). I
think you're going to have a hard time doing this from MicroPython on
the micro:bit because you don't have microsecond-level timing.

I recommend trying to find an I2C sensor instead - that'll be much
easier to use. Or if you want to make it really easy, some sort of
analog interface sensor (i.e. where you read a voltage from it).


On 8 July 2017 at 17:10, Jim Mussared <jim at groklearning.com> wrote:
> Hi,
>
> The micro:bit doesn't have a humidity sensor built-in, so you'll need
> to use some sort of external device. I've seen a few I2C sensors, but
> it's also pretty common to see Dallas 1-wire used in these sorts of
> sensors. You'll find I2C a lot easier on the micro:bit.
>
> So if you could let us know which sensor you're using then we can give
> you some advice.
>
> Jim
>
>
> On 8 July 2017 at 12:55, sasithaweerasekera via Microbit
> <microbit at python.org> wrote:
>> Hi I want to measure and display the humidity by the microbit using microbit
>> and the leds of the microbit, do you know the coding, because I can't find
>> any except for bit banging which is a concept I am not familiar with, if
>> there is a library it would help a lot
>> Thanking you in advance for ur time;
>> Sasitha
>>
>>
>>
>> Sent from my Samsung Galaxy smartphone.
>>
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