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Title: DIY ammeter voltmeter combo for ESC , prop selection Post by: docnayeem on April 03, 2014, 09:44:48 AM Hello !
After a lot of trial and errors .. Posting and reading posts , overheated / burnt ESC and a never ending hunt for a wattmeter decided to do some DIY stuff Here it is A DC ammeter a shunt resistor and a volt meter is what you require Rest every thing is quite straight forward You need to connect the ammeter in between the ESC and Battery and the voltmeter ( a digital one available at LHS for 300 bucks ) at the charging end. Run the motor with the prop at full throttle .. Chect the current and voltage .... Record it Then some maths ... P= I*V where P is power and I is current and V is voltage ( one tachometer if available can really get you all that you need right now this is the setup ... Tachometer will be added soon ) Title: Re: DIY ammeter voltmeter combo for ESC , prop selection Post by: saikat on April 03, 2014, 10:47:42 AM Actually if you a use a shunt - you can use a multimeter as a wattmeter
better to buy a multimeter from your local market Title: Re: Post by: docnayeem on April 03, 2014, 10:57:21 AM Tess but calculating the shunt value would be a issue and it won't give you a direct reading ...
Title: Re: Post by: docnayeem on April 03, 2014, 10:57:45 AM Typo Tess = yes
Title: Re: Re: DIY ammeter voltmeter combo for ESC , prop selection Post by: docnayeem on April 03, 2014, 11:09:33 AM A DC ammeter comes with a precisely calibrated shunt and will give you a direct reading .. And for a layman like me its better
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