(birds chirping)
- Hello fellow geeks and welcome to Another Geek Moment.
In this installment, we'll be discussing three featured
products from TE Connectivity.
These are the MS5637 Pressure Sensor,
the TSYS01 Temperature Sensor,
and the HTU21D Humidity Sensor.
The MS5637 feature low voltage operation,
low current consumption,
a wide operating temperature
from negative 40 to 85 degrees C,
a simple I squared C interface,
and a built in temperature sensor.
The TSYS01 features high accuracy
from negative five to 50 degrees C,
low power consumption,
a wide operating temperature
from negative 40 to 125 degrees C,
and a selectable SPI or I squared C interface.
The HTU21D features a wide operating temperature
from negative 40 to 125 degrees C,
low voltage operation,
low current consumption,
a friendly I squared C interface,
and a built in temperature sensor.
All three of these sensors are factory calibrated
and featured small package sizes
so they can be mounted on tightly packed PCB boards.
The pressure sensor is a three millimeter
by three millimeter QFN package.
The temperature sensor comes in a four millimeter
by four millimeter, sixteen pad QFN.
And the humidity sensor comes in a three millimeter
by three millimeter DFN.
To demo these sensors, I've mounted each sensor
to its own PCB board, and interfaced it to this
Bluetooth module via an I squared C bus.
This Buetooth module features a Coretex-M0,
that way it will connect to my Android device,
and from a small app, we can monitor
the readings of the sensors.
What I'll do is I'll get connected
to our weather station
and start taking readings.
I'll hand it off to my assistant, Corey,
who'll take it down by the river
so we can see the readings change.
As you can see, we've got a temperature reading,
a humidity reading,
a pressure reading,
and a calculated dew point.
Up here is the name of the weather station
and the RSSI of our Bluetooth feed.
Pretty impressive distance for Bluetooth low energy.
Still getting updates.
Our RSSI keeps dropping.
We might lose it soon.
Wow, still getting updates.
Well, there we lost it.
Keep going.
So as you can see, these sensors are ideal
for low voltage, low power applications.
Our Bluetooth low energy application
had an impressive distance,
running off of only a CR2032 battery.
For more information on these sensors,
search digikey.com with the part numbers
on your screen.
Thanks for watching.
- We'll come back for my assistant
sometime after dark.