Hardware Reference
In-Depth Information
This line reads a byte from the device. The default is to read from address
0
of the
selected device. Address
0
for the TMP102 is the current temperature. As soon as
the register is read, the
onReadByte()
function is called.
The value,
x
, passed to
onReadByte()
is an object. The
.event
field of the ob-
ject informs us if we have a callback.
If this is a callback, use
console.log
to display the contents of object
x
.
Finally, print the result field,
x.res
, after converting it to degrees F.
Run the code by using the following command:
bone#
./i2cTemp.js
onReadByte: {"err":null,"res":24,"event":"callback"}
75.2F
