Texas-Mark
Solar Wizard
- Joined
- Aug 4, 2021
- Messages
- 1,877
I use a cheap (i.e $39) prepaid phone for Bluetooth devices, pull the SIM card, then remote into it via wifi.
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Any WIFI battery voltage monitors? -- NOT BLUETOOTH
- Thread starter TJM
- Start date
433 mHz is right in the middle of one of the Amateur Radio frequency allocations, see below :
70 Centimeters (420-450 MHz)
420.00-426.00 ATV repeater or simplex with 421.25 MHz video carrier control links and experimental
426.00-432.00 ATV simplex with 427.250-MHz video carrier frequency
432.00-432.07 EME (Earth-Moon-Earth)
432.07-432.10 Weak-signal CW
432.10 70-cm calling frequency
432.10-432.30 Mixed-mode and weak-signal work
432.30-432.40 Propagation beacons
432.40-433.00 Mixed-mode and weak-signal work
433.00-435.00 Auxiliary/repeater links
435.00-438.00 Satellite only (internationally)
438.00-444.00 ATV repeater input with 439.250-MHz video carrier frequency and repeater links
442.00-445.00 Repeater inputs and outputs (local option)
445.00-447.00 Shared by auxiliary and control links, repeaters and simplex (local option)
446.00 National simplex frequency
447.00-450.00 Repeater inputs and outputs (local option)
If your neighbor is a ham running an antenna array like this around 433 mHz you may receive some interference instead of generating it ? :
SrFox
New Member
I am using a Shelly Uni to monitor my battery voltages on WiFi right now. A cheap and easy solution.
Now I am trying to figure out how to receive an alarm when the voltages change to a low state.
Now I am trying to figure out how to receive an alarm when the voltages change to a low state.
You could also use a Bluetooth monitor with a PC app, and login remotely. Google desktop makes it really easy if you have Windows and an Android. I'm sure Apple has something similar.
That's how I run my security cameras, I can just check them through Google desktop, rather than setting up a fancy remote camera app, and streaming my house to the internet somewhere.
That's how I run my security cameras, I can just check them through Google desktop, rather than setting up a fancy remote camera app, and streaming my house to the internet somewhere.
I have to say, the absence of this kind of device at a reasonable price baffles me, and I predict that a year from now, we'll be awash in them.
This $12 monitor with a ESP32-S2Mini type microprocessor (which costs me $2.50 retail including shipping) would be all that would be needed.
Sonoff is dropping the ball.
This $12 monitor with a ESP32-S2Mini type microprocessor (which costs me $2.50 retail including shipping) would be all that would be needed.
Sonoff is dropping the ball.
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thekusi
New Member
I've been searching for awhile too and finally found one on aliexpress.com
Just found this amazing item on AliExpress. Check it out! $5.33 25%OFF | DC 0-420V Tuya WiFi Smart Lithium Battery Capacity Detection Tester DC digital Display Current Voltage Coulomb Power Meter DT20W
Just found this amazing item on AliExpress. Check it out! $5.33 25%OFF | DC 0-420V Tuya WiFi Smart Lithium Battery Capacity Detection Tester DC digital Display Current Voltage Coulomb Power Meter DT20W
I ordered one just now. The 5.33 is for the relay. Felt very scammy but I used paypal.
The meter is actually $25.
featherlite
Solar Enthusiast
My WF-2030, mounted inside my aluminum trailer, has a maximum range of about 15 feet so long as there are no obstructions. I cannot read the WF 2030 while I am sitting in the cab of my pickup truck with the trailer connected to the hitch.
thekusi
New Member
Lots of sellers do that on ali, it's a bit deceiving when you're shopping and sorting results by lowest price first
ScrotpusGobbleBottom
Cannibalism starts with a kiss.
Teamviewer are a bunch of assholes that will call you a commercial user ( paid subcription) if you use it too much. I simply logged into an old phone to then connect to bluetooth and view a jk bms. Well, They eventually called me a commercial user and limited me to 5 minutes, That was fine. That was all the time I needed. Now, They give me 30 seconds. f in bastar s. With how slow teamviewer is. 30 seconds isnt much.
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Gubman
Not so New Member
- Joined
- Jul 25, 2022
- Messages
- 101
This may help you with the alarm issue (Jump to 10:44)
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RustDesk is a better replacement for TeamViewer.
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Mike C.
I've had a bluetooth version of this for nearly a year but have a wifi version on the way here now. Has a 400A shunt.
Junctek KM140F-100V-400A
Junctek KM140F-100V-400A
Sonne
Solar Addict
I’m also using the Junctek KM series and find it fantastic for viewing my Offgrid system status via internet when I’m away from home.
That's good to hear, thank you. I work from home so it hasn't been that big a drama ... but will be nice to doublecheck SOC and other parameters from the house without having to wander down to the shed to get within range of the bluetooth ... especially once we get closer to winter.
If I end up fitting a remote start to my generator, I should be able to check levels and fire up the generator without even getting out of bed.
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