Came across this on the OW website.
Seems to be a popular smart plug on here.
2 pack is the best value but also available in single and 4 pack.
TP-Link Tapo P100 Mini Smart Plug (2-Pack) $18 + Delivery ($0 in-Store/ C&C/ OnePass/ $65 Metro Order) @ Officeworks
1060
SuiCid3 on 26/09/2025 - 08:49 officeworks.com.au (4013 clicks)
Last edited 26/09/2025 - 12:16 by 2 other users
Last edited 26/09/2025 - 12:16 by 2 other users
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Shame it is not P110 Energy Monitoring
What do people use energy monitoring for, long term? I just have a monitor I connect up to test load, to figure out say my TV is 100w, then I know how much it costs to run. Is there some other fancy things I'm not doing?
It's helpful for artistic people.
You spelt autistic wrong
Use it to detect if my son has turned on his fitted electric blanket and if yes, automatically turn on and off the power every 30 mins, and completely off the next day morning. This simply cut the energy consumption half and more importantly, keep the right temperature for him so he’s not getting too hot or cold.
But the on-off task can be done even without power monitoring right?
@JaxSantiago: if you don’t monitor the power you could be turning on and off the switch for nothing if the blanket has not been turned on, so it’s more wear and tear.
@OzComment: Silly me. I thought Power Monitoring is just to see how much power the device consumes. But after reading impoze's post below where he said "do automations based on power consumption", that's when I got the idea. Even sillier is the fact that I do have 2 P110Ms but have never checked out how to do automations based on power consumption.
for me it's less about monitoring power usage and determining if a device has finished running a cycle e.g. washing machine & dryer.
Ooo that's smart!
Someone further down in the comments said it can be used to send alerts and things based on power changes or state, such as when the dryer finishes or if the TV is left on.
That's me using a heat pump drier 15-20 Times per week. i just love the stats, probs my ASD tbh. In fairness it helps me tracks cost for my power bill. Which is $300 per months for electricity.
I'm the same with stats, in fact this was brought up in my assessment.
Once I got my hands on Home Assistant my compulsion for collecting data and driving efficiency around the house was finally satisfied. Our previous Electrolux dryer would often "dry" a blanket in 5 minutes, which is impossible, purely because its humidity check was too short. I added an ESP32 and sensor to the back of the dryer to monitor temp / humidity and was able to run an automation that would sense the dryer finish from the smart plug and then monitor the humidity over the next 20 minutes. If it exceeded 60% then it would flash the lights and make a verbal announcement. Aside from preventing having to re-wash the load if you don't check it for a few hours, the data it collected was fascinating. You can see how the dryer would pulse the compressor on / off over the whole cycle and then what effect that had on the humidity over the course of a few hours.
Interestingly, there was very little variance in compressor activity between each of the cycles (even energy efficient mode), it seems the 'magic' is in the sensors which I haven't yet been able to tap into.https://photos.app.goo.gl/xozwb2iwjg4jfJebA
Not being satisfied with having so many smart plugs and their inherent flaw of failing capacitors over time, I build my own energy monitor using an ESP32 and some clamp sensors - Of course rather than just monitor one item, I made it so I could monitor the whole house and split it by circuit breaker - it's super interesting seeing where the most energy goes. Which turns out to be the MIL's caravan and the kid's computers - here I was thinking it was climate control.
@MrKnowItAll: Would love to hear more details of the ESP32 based DIY energy monitor… :) Like, which clamp sensors were used or see the schematics…
@Ozico: Likewise! I've got smart plugs monitoring the larger power consumers in my house, and an ESP32 monitoring the smart meter box for overall consumption, but this is much nicer. Even just pointing us at the hardware you used for it would be helpful.
@MrKnowItAll: I've been trying to pull together a schematic but it's not super easy with the program I'm using (Fusion 360 Personal [Free] License). It's basically a bunch of STC-013 sensors connected to the ESP32 via a bias network. You need a bias network (which is essentially just two resistors tied to 3V3 and GND) to give the signal a ~1.65 V midpoint. That way the AC waveform swings above and below the bias instead of 0v, which would see it dipping into negative, which the ESP32 ADCs won't tolerate.
Parts
ESP32-S3 (PSRAM is overkill, but it has more GPIOs than other variants)
20a STC-013 sensors (Aliexpress has them for cheap, just make sure they have a burden resistor included)
2x 10k resistors
10 µF electrolytic - stabilises the bias midpoint (keeps it from drifting).
0.1 µF ceramic - filters out high-frequency noise.Wiring
This is pretty straightforward, power the ESP32 with 5v (VIN / GND) and then for the current measuring, we start with a basic voltage divider which creates our bias voltage that the AC waveform will ride on:3V3
|
10K resistor
|
———-Bias network
|
10K resistor
|
GNDThen tie the bias network to GND with the 2x caps. This is now the bias node.
Then for each sensor, one wire goes to the node, and the other to the GPIO of the ESP32Code
In Home assistant / ESPHome, there is a function for current sensors which is awesome. It calculates the bias voltage and is able to remove that, leaving only the current draw.First you assign the GPIO
sensor:
- platform: adc
pin: GPIO9
name: "CT Raw Voltage Split"
id: adc_sensor_1 # all splits
attenuation: 12dband then define the current clamp, here we multiply by 30 as my sensor is a 1v 30a sensor (amps / voltage = multiplier., so 30a / 1v = 30.).
A 1v 20a sensor would be a multiplication of 20. You can calibrate them by running a known load (like a kettle or heater) and fine-tuning the multiplication factor, but in my case, I found the default value good enough.- platform: ct_clamp
sensor: adc_sensor_1
id: all_splits
name: "Current Usage Splits"
unit_of_measurement: "A"
update_interval: 1s
sample_duration: 800ms
filters:
- multiply: 30
- lambda: |-
if (x < 0.01) return 0;
return x;
Duplicate the adc + ct_clamp block per sensor, tweak the GPIO + ID, and you’re done.
- platform: ct_clamp
I use it so I know when my washing machine turns on and off. I have a notification to let me know when washing is complete, when I walk in if it's finished while I was out then Google Home speaker will tell me. Also a door sensor on the door so it knows if I've actually emptied it so it can remind me again.
I have a big problem of leaving wet washing in the machine after it finishes 😅
A Zigbee vibration sensor off Ali express for $2 can also do that
I have a big problem of leaving wet washing in the machine after it finishes
Too complex of setup…
If you are so forgetful
Just start a timer on your phone or smart home device whenever you do the washingOR even simpler, just leave a note on your desk
@pinkybrain: I will forget to start the timer or ignore it when it goes off. Same with the note, I am not making a note each time, I either forget or I'm too lazy. I need it to be automatic. Automations means I can change light colours etc. too so I am more likely to notice. Not really that complication, I have way more complicated shit going on than that.
A sudden increase in your electricity bill can help you identify the underlying problem.
They were $5 a couple of days ago…
Same price at Harvey Norman and bunnings.
no energy monitoring, no thank you.
For those wanting monitoring, the stackable discounts at Amazon doesn't work out too bad - 2 x P110M $41.65, 3x P110M $51.44 plus delivery if not prime.
I've only ever had P110M's, using 5 at present and finding them awesome. Steered clear of the P100's due to reports of early failure and no monitoring.
hey mate! How did you get these stacking discounts working? I wouldn't mind some at that price! Cheers :)
You add 2 or 3 to cart and check out. Buy 2 10% off, buy 3 is meant to be 15% off but it actually stacks with the 10% so you get 25% off. Make sure you select the 110M not the 110 as it doesn't qualify and is currently more expensive too.
Awesome cheers got them for $51, bought 3, I for EV charging as my charger is very basic with no timer function, and 2 for my pool filter and robot.
@Regie69: Hmm those are all pretty hefty loads, it's meant to be able to deal with 10A (so 2400W) but I'm not sure for what lengths of time. Hope it works out, good news is Amazon are generally very good for returns etc.
Thanks! Somehow I got stacks below on 3 x P110M, only paid $25.12 with prime free delivery.
Buy 2 10% off
Buy 3 15% off
$10 off $70 DIY item
$15 off $70 DIY item
$5 credit using PayTo paymentnice , I didn't get those options other than the first 2
Wow! Champion
I got 3 for ~$51 as well, thanks. No idea why they allow stacking the discounts this time, Amazon usually doesn't do that, good find.
NOTE: You need to get to checkout to see the discount.
I've only ever had P110M's, using 5 at present and finding them awesome
Where do you put your smart plugs
and what functions you setup on it?
Was $7 each at Amazon earlier this week https://www.ozbargain.com.au/node/925594
Although if you missed that deal this one is not a bad alternative.
Just to add, those Amazon ones were P110, with energy monitoring. This deal is for P100, no energy monitoring. The P100 were $5 previously at HN https://www.ozbargain.com.au/node/924986 instead of $7.
Bought 3, $5.25 each
all $5-7 each deals are sold out now, need to wait for the next stock pile
worth getting the P110M with power monitoring so you can do automations based on power consumption.
e.g. I have my laundry & drier hooked up which notifies my on completion.
That's an idea! I might try that, thank you.
How are the automations done - through the Tapo app itself?
Home Assistant
How do you do this? I checked Home Assistant and couldn't find a way to set a condition based on power consumption.
I have P110M.
@JaxSantiago: Are you using the TP-Link Smart Home integration?
The P110M should show up with 20 entities.
Sensor - Current Consumption
@3dprintdeals: Ah. I probably misunderstood. I was referring to using Automation from Google Home app, where I have the tapo devices linked up.
Didnt they say dont use it for power heavy appliances? Ive had 4 of the plugs die just from phone charger use and how it dies is that it rapidly powers on and off. Not sure if itd wreck your laundry appliances.
What are the practical use cases for TP-Link Tapo smart plugs? For example, could they be used with an EV granny charger: set a target completion (e.g., 80% charge) via a timer on your phone, then use the Tapo app to disconnect power? What other ways do people use these smart plugs in everyday practice?
I have these on:
- Dehumidifer in bathroom to run on timer
- washing machine - notifications
- dryer - notifications
- 3D Printer - turn on/off
Dehumidifer in bathroom to run on timer
Just curious, don’t most people leave their dehumidifiers on 24/7, even when no one’s home? I thought they’re generally quite energy-efficient anyway.
I don't need it running 24/7.
It's a 25L unit, around 300watts and the fans are loud..
I have a dessicant one that consumes 700w on high
I use one on a schedule to ensure the coffee maker is awake and warmed up each morning when Mrs C & I get up, plus we can turn it on when we’re heading home and it’s ready when we walk in the door. (One of the downsides of having a proper semi-commercial espresso maker is a lengthy start-up.)
That's a good idea however my coffee maker requires you to press a button not just power it on
Very first world problem but you could add a moes fingerbot
I use one on my AC panel which doesn't have wifi
looks like its pickup only now
"This product cannot currently be purchased online, but here is something similar!"Does anyone know if this can be used to connect to the garage electrical roller door? So I could power off the garage door at night remotely?
Yes, that's what I have been doing for the last few months.
Amazing thanks for confirming
is this to prevent the garage roller door from opening when you accidentally press the remote?
@jimmykim: Yep. I’m also in Melb and it’s becoming common for thieves to replicate frequency and open the garage without the fob
these don't work with the Brilliant app or similar, right (are they Tuya-based?)
Can this use tasmota firmware?
I have bought 10+ of these. 9 have died…. google "clicking TP-Link" - horrible device. not recommended
I've got at least 30 and all are working fine. What did you have them plugged into?
Just counted and including the old Kasa ones I've got 50.
Ozbargainers like giving negs to bad reviews for some reason
Only two stores left in Victoria.
https://www.tomsguide.com/home/3-appliances-you-should-never…
Tldr: don't plug into anything with a heating element if you don't want them to die
Americans run 110V and need higher current to reach the same power for an equivalent Australian product; because we run 240V
It should be a lot safer in that regard to connect the devices mentioned in the article.device die or the smart plug die?
Personally, I would spend a bit more and get the Meross plugs - Matter and HomeKit compatible, and of equally small size.
Can I use this to make sure my coffee machine turns off 60min after I turn it on in case I forget?
$9 each don't need monitoring not bad
FYI: Seems out of stock but they’ve got at Harvey Norman for same price - I used this to do a price matched at JBHifi a little earlier
Bunnings have a 2 pack of mini for $18
https://www.bunnings.com.au/tp-link-tapo-mini-wi-fi-smart-pl…
seems like prices have gone up .
30/9 ended up being the final day
no monitor function?