Atorch DT20 DC Energy Meter with WiFi Tuya

A DC energy meter with remote monitoring.

[nbd]

thanks for your video. this will be super use in all sorts of off grid, campervans and boat applications.

[fotochrepek]

WOW! new update 1.0.7 brings separate voltages for capacity and MINUS and PLUS with current and power, nice :)

[jlucasound]

I love digital meter displays like this one. I even like the little panel mount ones that you
can get all day long for a buck that measure DC volts and amps.
Great for small projects like robotics and machines that do stuff.
Like toroidal coil winders! Those are wild!
Thanks for a great many years of your videos, Julian!
I see you coming up on 200K!! Yaah!! 👍🍻🥂🎆🎉

[jpqtuts]

I like tuya because you can use it in an ‘offline’ local network, without relying on a server elsewhere

[squalazzo]

have you tried connecting it to home assistant to see what arrives there? It's not the 1st time HA gets full values, while tuya app only some

[tonyweavers]

I don't think those "100 Amp" copper terminals will last long at full rating. Meter looks good though.

[followthetrawler]

Did the chart function in the app not show you the direction of current? Positive and Negative? EDIT: Should've waited, you proved it did on the device itself - but in the app?

[Levi-kp]

22:28 maual trigger for their relay module operation.

[taskelam]

Why does it matter that the bolt blocks the access to the voltage sense terminal screw? Just connect the sense wires before the current wires.

[muwlgr]

Thanks for a useful review. Can you please tell if there is a Windows/Linux software to properly shotdown the operating system upon receiving certain information from this battery monitor ? It seems that the vendor-bundled software is for smartphone only.

[VolodymyrKrupa]

Can you add this device to HomeAssistantOS?

[unwired]

I am thinking of using this to turn on my hybrid inverter if the power is low and if no good harvest from PV.

[frankowalker]

It looks nice. It just needs some software tweeks.

[DeanDubovac]

Hi Julian, nice video. Do you know if they fixed capacity counter in new firmware? I would like to use this device to measure real SOC of 100Ah lifepo4 battery. Is there a option to fully charge a battery and then set capacity to 100x12v and observe capacity counter decreasing when load in on and increase when charger is on? Thanks.

[truongngoc]

i just received the product after 5 days of ordering, i wonder if it is possible to use an external relay or is it mandatory to buy from that seller, and another thing that is quite disappointing is that the app does not show the status of discharging or charging, hope they will update soon

[tonyh]

Good review but it's a shame you didn't check its accuracy given that Atorch don't specify it all. It's all very showing the current to 1mA resolution, ie. 5-1/2 digits, (the App shows an additional digit than the LCD) if it's only accurate to 10% - but I expect it will be nearer 1%. The shunt itself is specified as 0.5%.

A more detailed, if brief, teardown would have been appreciated to show which components they use although they likely have eraesed the markings.

That shunt is going to get quite hot at 100A dissipating 7.5W so a bit of care to allow a free flow of cooling air would be advised when installing.

[VolodymyrKrupa]

How to add this device to Energy Panel of Home Assistant OS? Thank you.

[waltermccann]

Any idea how the relay works? Was hoping to be able to use it to disable the output and switch over to a charger if the voltage goes below a certain threshold - all I can find online is that it turns off if the overvoltage is reached but when I attach it on the bench all it does is beeps over the voltage and relay does nothing. If I manually switch it on from the app it does switch off but never switches on again (even if I go below the low voltage) so not sure what the point of it is - has anyone else had more success?

[waltermccann]

Also, seems that only the volts, current and power are made public (linking it to homeseer) - which is useful as I can run an external relay to charge it if it goes below a certain voltage but I have to have a seperate relay, i can't use the one built in one as it is not controllable! (using a 25.6v LifePo4 battery to backup my aquarium) - so not solar!

[MiniLuv-]

I would think that there is a good reason for manufacturers of these modules to provide a developer interface that allows for the user to generate improvements and new functionality over the manufacturer provided capabilities. Clearly software is not their strong point.