Products > SoilWatch 10
sleep mode for soil watch 10
aylashiv:
here the scenario is: the device will be monitored from remote places.here the source of current is battery. lets say: if i want to read for every 10 mins then only a second is enough to read from analog pin rest 599 seconds current consumption is wasted. how can i over come it
Thanks,
shiva kumar
pinolec:
Hi Shiva,
The easiest solution is to use a transistor as a switch to turn on and off the sensor. I assume you use a microcontroller to measure the values. Use 1 pin to control transistor to turn on the sensor.
Let me know if you need some more assistance with this.
:)
Piotr
aylashiv:
Hi,
can you send me the schematic of how to drive the sensor using a transistor? for whenever we want to make it on and off.
pinolec:
Hi Shiva,
In general, you would like to use a transistor to switch load (sensor).
See attached picture.
You can use nearly any logic level n-channel MOSFET.
Regards,
Piotr
aylashiv:
Hi,
Thanks for the schematic diagram, im currentky using an NPN transistor to switch on and off the load, but I prefer MOSFET in future, just clarify me, MOSFET has good retention than a BJT?
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