- Tue Mar 11, 2014 12:39 am
#169253
Hi,
I want to power a device only when my car was moving, here is what I thought of :
(ignore the ADXL193, Fritzing didn't have Sparkfun's ADXL362 breakout board)
Could you tell me if there's any problem with this circuit ? I'm not very confident about the power/mosfet part.
When moving the (3.3V) Arduino will pull Pin 9 and 6 HIGH, then LOW if there's no movement for more than 10 minutes.
I use a LM7805 because I have it available and think the Arduino Mini Pro will be more than enough to power the LED, ADXL362 and MOSFET.
I know that due to the protection DIODE output voltage will be slightly less than 12V but that's not an Issue (it will be regulated to lower voltages).
I want to power a device only when my car was moving, here is what I thought of :
(ignore the ADXL193, Fritzing didn't have Sparkfun's ADXL362 breakout board)
Could you tell me if there's any problem with this circuit ? I'm not very confident about the power/mosfet part.
When moving the (3.3V) Arduino will pull Pin 9 and 6 HIGH, then LOW if there's no movement for more than 10 minutes.
I use a LM7805 because I have it available and think the Arduino Mini Pro will be more than enough to power the LED, ADXL362 and MOSFET.
I know that due to the protection DIODE output voltage will be slightly less than 12V but that's not an Issue (it will be regulated to lower voltages).