On an Uno data sheet I see you can access the input voltage supplied to the power jack from the Vin pin.
I want to run a heater and pump from Vin pin, up to 1.5 Amps.
Will the PCB traces handle that much current?
"VIN. The input voltage to the Arduino board when it’s using an external power source (as
opposed to 5 volts from the USB connection or other regulated power source). You can supply
voltage through this pin, or, if supplying voltage via the power jack, access it through this pin."
Looking at the schematic there is an M7-diode between the external connector and VIN output. According to the datasheet ( e.g. https://octopart.com/datasheet/m7-diotec-30502012) the max average forward current is 1A.
Thanks for the info Paul. I will need to supply power from a different point.
Mavam
The voltage regulator on the Uno will overheat and shut down at a much smaller load, depending on the actual voltage on Vin.
With 12V on Vin, the 5V output cannot be expected supply more than about 100 mA.