I am trying to read the voltage,watts,amps and ohms from a external regulators output with a arduino pro mini 5v 328 and display it on a standard LCD. The regulators output im trying to read is not the regulator for the arduino,its a seperate external regulator controlling something else(various ohm coils) .Im pretty new to arduino and dont know much yet so i appricate the help. The regulator i will be monitoring is a murata okr-t6 step down chip. Its variable voltage from 3.3v-6v with a max of 6A output and ran off 2 3.7v li-ion cells. I drew up a little schematic of how i think it may go but im not sure how to connect it to the arduino to do what i need.Im not sure if that voltage divider is correct either.I think maybe a 1.2k and 1k will work but please let me know . I got those resistances by 6v/5v ref- 1.2 step divider. Also is it a problem that the regulator can output up to 6A ? Will i have to use bigger watt resistors. Any help is appriciated with the hardware setup and code. Thanks
(dont pay attention to the lcd pins not connected .I know how to connect that.
Electronucks:
I am trying to read the voltage,watts,amps and ohms from a external regulators output
That's a splendid looking circuit, and I have no idea what it does. Which of volts, amps, watts and ohms does it give you, and how does it give it to you?
heres a better schematic . Can someone tell me if the voltage divider values are correct and if everything looks to be connected correctly . I want to read the voltage/amperage coming off the output of the adjustable 3-6v 5A regulator. Do i need to voltage divider i put in there to read the regulators output voltage or can i read the voltage as well through the acs712 amp sensor?
For help in calculating the divider. How do i determine what R1 is in the dividers?
-Input to the circuit is 8.4v --------- for divider going into analog2 pin
-Murata regulator output 3.3-6v Up to 6A max (normally ran in the 2-5A range) -----For the divider going to Analog1 pin
-Arduino anolog is 5v of course
Im assuming i dont need a divider for the amp sensor?
