I was so excited to see a new video. I found your channel a few months ago and binge watched everything over a number of night shifts and have been waiting for more ever since. Your videos have given my plans for home automation more realistic.

great to see your back

It is always real pleasure to watch your videos! Thanks!

Great video again !! I love this series, and have learnt a lot from you. Will be waiting for your series on software side including MQTT, really looking forward to it ! Cheers.

Really nice work! I'm starting to really gear up my house with all your help, so thank you!

I really like that kind of videos. Full of good explanations. You can watch it and build it yourself. Thanks

Awesome! Didn't notice you had a new video up... Very informative, I'm interested in anything you can do with an arduino. Good on you Jono, looking forward to more videos in the future.

Great video showing internals of PIR detection sensors, thank you!

I really hope you start making videos again!

Brilliant video as always Jonathan!

Dude, you are brilliant! Thank you for this information, you explain it so well!

Thanks for sharing. You did a great job explaining every step.

Nice to see you again!

Excellent video and explanations as always, thanks.

Marvelous explanation

Yeah long time no c. Guess you've been busy with life and work Nice to see your back John

This is very very clever, and super cheap to do. Thanks for this!

Great video and nice to see you are back. I have my hardware for this project all complete now however my Arduino skills are not the best and I have been pulling my hair out for a few days now. A follow up video showing how you would modify the sketch to accommodate MQTT would be great. Everything is working fine including connection to my MQTT broker, I am just struggling to modify the sketch to send messages based on state changes. Keep up the good work and look forward to seeing more videos. Cheers

nicely explained. at the end of your video, there was a bit of a delay before the room light turned on. any idea what in your system causes that, or does it not bother you enough to look into it?

Great vide! Can you explain how to connect your shield do to the regular VCC-OUT-GND PIR sensors?

great videos!! Do you get the 12v for the sensor thrue the vin pin and gnd on the arduino?

Very educational. Thanks for posting!

Excellent video! Thanks for sharing!!

As previous subscriber says, "I love these videos!".. I do as well.. Great videos, I would love to see a lot more in this series and more often as well. I do realize that it's a lot of work, but its very interesting, informative and very fun to watch. Keep up the great work! Also, a short question that just struck my mind.. Why dont you use raw AVRs? Is it because it's "easier" to program Arduinos or that they are already made and available with all components needed to make a working piece out of the box? I personally like raw AVRs more as it feels like I have more control of the space available for the software. I might be wrong, but it feels that way :) Nothing wrong with Arduinos though, otherwise it wouldn't be so widely used ;) hehe Keep up the great work! :)

I love these videos! Thanks for taking the time to explain your techniques. I'm a systems engineer and software developer, but I also like to dabble in hardware like Arduino. Having just bought a house, I'm looking to do DIY home automation. I'm interested in the shields you've designed. Are the Eagle files available?

Excellent explanation and video series. I've one ramark. You can reach the same goal by only two resistor, the third is not necessary (the one in parallel with tamper switch). This way (only 2 resistor) you can detect: all switches closed, Alarm switch open, Tamper switch open, open circuit (wires cut), and wires shorted.

So i wired the tamper pin to gnd.. and it does work.. :) thank you. Marc.

a learned a lot from video, practical and technical too, if you could features remote control/monitor using GSM shield and bridge to ethernet(local) for sensors reading

great video! I like your explanation!

Very clear presentation. Many thanks. Question: I am looking for a water pressure sensor to connect to Arduino. Looking to the usual supplier and can't find any such sensor (say up to 10 bars, ⅜"connection) to monitor pressure in a water heating circuit (normal range is 1 to 3 bars). Any suggestion welcomed Tks

Amazing Video as usual. Thank you very much. I didn't understand the idea of the resistor and the diode to filter the antenna effect and to protect the analog input from damage. Can you please explain it again or refer me to a link if you don't have time :) Thank you in advance.

Precious informations my friend! How can I install more than one sensor wired in series with all those sensing properties? Thank you!

Great video, just what I was after. I've just got my board and working great however I'm wondering how I can add WiFi to the UNO and link it to my home assistant to do some automations. Any chance of a follow up going through this process? Thanks again.

This is great video! Go on!

Nice your see you back, very nice video !

+SuperHouseTV Thank you for the great video! I really appreciate the information about the resistors to detect different states and if the device has been tampered with or the line has been cut. I have been looking for a pir sensor like the one you show in your video and am having a hard time finding one. Where would you recommend purchasing them from? Thanks again.

I just stumbled on this video while trying to add some security sensors to my home. A question, why is the resistor required across the Tamper switch ? Surely whether the wire is cut or the case is opened, this will present the control circuit with an open loop which would trigger the "fault" mode. (Assuming a "fault" when alarm is not set results in a call to the maintenance team, and a "fault" when the alarm is set results in a call to the security patrol)

Could I make a suggestion for more tamper resistance and real-world wiring tollerance? This requires two ADC inputs to accomplish. Use a trim-pot at 500-Ohms (the 25 turn type, 1/2W or better). Feed 5VDC for the sensor loop into the wiper, one of the end terminals of the pot goes to a 120-Ohm resistor and to ground. One ADC pin measures at the pot-to-resistor connection to sense the trim-pot position/setting. This way you can check if the value has been tampered with. For the rest of the circuit, the other leg of the trim port goes to a 750-Ohm resistor and then to the sensor supply output of the controller and to the other ADC input. For the resistor values in the sensor itself, Tamper is 680-Ohm, Alarm is 2.7k-Ohm, and the end-of-line resistor is 330-Ohm. This spread of resistances means that each sensor state (Open 5V, Alarm 3.75V, Tamper 2.5V, Normal 1.25V, Short 0V) are very nearly 1.25V apart and fairly evenly spaced. The only weird state of Tamper+Alarm ends up just shy of 4V - but shows the alarm controller the "priority" signal of "Alarm". It also bumps up the loop current so that longer loops can be easily handled, and negates the resistance changes of wire over time. Short circuit loop current is still limited to 5mA/25mW so it's very safe as low voltage wiring goes. Each channel loop would only draw a maximum of 1/4W if the POT was all the way out of adjustment and the loop was shorted. With a correctly adjusted POT the channel power would be about 50mW and in the three other non-open states the power is about 25mW. To calibrate a channel, you would connect the sensor and trip the tamper alarm which would set the circuit voltage at 2.5V when the POT is correctly calibrated. For devices without a tamper switch, a 680-Ohm resistor across a jumper header in series with the alarm switch would provide a calibration facility. In software you would have a state you can set for maintenance of a sensor, after which you would trip the tamper switch (or remove the jumper to enter calibration mode). You would adjust the trim-pot until the sensor reads 2.5V (this can be done with a local bar-graph display that is enabled to the only channel in service mode). Once the sensor is calibrated, you close the lid (or re-install the jumper) and take the sensor out of maintenance mode. This logs the trim-pot setting, and a window alarm is set around the value. This gives you a bit of ease in handling wire corrosion over time as well, since the total resistance will go up as oxygen works its way around the jacket.

hey, i just watched all your videos and i have a small suggestion, could you either up the volume of the parts where you talk or turn down the vollume of the superhouse intro/outro? its not really synched well and i have to turn down my volume for the intro every time i watch it. i love the vids, very educational and intresting!

Can you talk about wireless sensors? I have a couple of wireless sensors from old systems

Hi. I hope you're still monitoring this vid. I am have a hell of a time find that pir sensor. Any chance you can link me? TIA David

Thank you!

Im trying Alexa to measure the temp, could i get a Humidity Temperature Sensors and plug it into the auxiliary port on Alexa? i want to wire it in, verses getting more wifi enabled devices, any recommendations?

You need to do some more videos

great video thanks

It would save a step or two if you'd put a link to the sketch in the video description...!

Would it be possible for you to provide instructions on how to make the security sensor shield that you designed, or are you offering the units for sale? I am interested in installing a security system using your design ideas.

Hi Jonathan, Just discovered your site and your video #13 - simply brilliant!!! In #13 you mention you made a security sensor shield for this project - do you sell these and if so how much are they and where do I purchase them? I looked on your site for it but couldn't find it there - might be me rather than your site though! Please advise. regards, Ian

Is there a way to reduce wire capacitance? I got a DSC sensor on a 20m 4 wire telephone cable. I get tamper states between normal and alarm states. Thanks for the great video, I watched it 3-4 times :D

You are the best :-)))

Am I mistaken here or is the arduino board really capable of direct resistance-measurement? I think you would have to make a voltage-divider, adding one more resistor. Then a three-wire cable would also be enough. br Tom

Good to see a new video. Expanding on this method, you can detect more sensors than one of your shields can handle by paralleling multiple sensors using different and unique combinations of end of line resistances at each location to define which sensor is triggered. You can also do the same thing by connecting the sensors in series, but you lose the feature of knowing which sensors cable was cut. Any ideas on what the practical limit is for the number of sensors you can parallel on single input and still have accurate identification?

On the subject of sensors will the next one be outputs ?. I have an old smoke machine and I wondered if there could be an output to fill the house with smoke for confusion purposes so the intruder can't see where they are going just a thought ? As a bonus you could set it up so it could remind of birthdays lol. It's party time ...... Complete with appropriate music streamed of course thruout the hose and mood lighting maybe a disco ball thrown in to for good measure Keep up the good work and those arduino boards coming

Is the VCC(12+) red cable allso protected?

Which PIR motion sensor do you recommend?

Just to help others out on this one: In regards to using a normal Arduino UNO, or any other uC with a low analogue input count, with several alarm sensors (using the resistive divider method), I studied the Caddx NX-216 Alarm Expander board (See Image of the board here): www.argina.com/nl/cache/file/2CA6BDBD-2F5D-4430-B5FE1AECEB50FF6A.jpg Basically it takes 16 inputs, puts it each on its own potential divider (to generate the Voltage as mentioned in this video), then instead of going directly into the PIC Microcontrollers Analogue Input, they run 8 inputs into each of 2 x CD4051B Analogue Multiplexer Chips.The Multiplexer chip then connects to the Analogue in of the uC [which then serially passes the information on the bus to the alarm panel]. So what I got from Reverse Engineering their method from that is for 8 Alarm Sensors, your Microcontroller just needs to have 1 Analogue Input, and 3 DIgital Outputs (Connected to the 4051 Mux Chip, to tell it which channel you want to read). All you do is then set your digital pins to 000, then do an analogue read of the input, and save to an array, or process immediately. Then increment the Digital pins to 001, and do a read again, and by scanning all the inputs like that, you can get away with only 1 ADC pin for 8 Inputs. Because the potential divider for each input channel is before the Multiplexer chip, you do not even need to worry about the 4051's typical series (pass through) resistance of 125 Ohms. All that does is lower the current that can be drawn by the ADC pin, being a series resistance., but it will not affect your voltage reading. Add another 4051B, and 2 more digital pins (1 connected to the EN pin of each 4051), Connect the Outputs together to the same Analogue input, and you can then have 16 seperate sensors. Using this method, you can scan a lot of Inputs, (8, 16, 24, 32, 40, etc) (limited only by your uC digital pins) using only 1 ADC pin! I have just gone and ordered myself 20 of the 4051 DIP chips from Aliexpress. When they do get here (to South Africa) from China, Possibly in 2 or 3 months, if our Postal workers don't pinch it!, I can play around, with adding this to my Openhab/MQTT system to monitor my PIR's in each room.

Do you have email addy John or do you want to keep things just to youtube ??

Another question sorry for the barrage here john what are the options for people who rent as far as automation go eg wireless I guess

Can u please make more home automation videos

If you are looking for a topic for a future episode I know I am interested in how your move over to MQTT is going. I am personally looking into MQTT-SN because I am looking at quite a bit of communication over zigbee. I am interested to see what you are doing with yours and what you are using.

Who makes a security expansion board that you can connect even more sensors?

Please start making video's again! its been 11 months!

Great videos. How do you make a mqtt server?

Could I make this with a ADS1115 16bit ADC and a NodeMCU(arduino)? What would my values be? Thx for the great video :D

Does 12v not screw up the arduino I thought they only did 5v? Have you done something to it to make it run on 12v?

Is there meant to be no audio from 11:34 to 26:05?

nice , but how we connect this sensors by wifi with arduino

Why did you stop making videos?

What do we call this "green pad"? i mean i want one for me.

what do you call that green table top?

to understand you I should be professional. .. their's nothing like précisions ..for now I get only that exist arduino power shield ...nothing more

mate, good content but for the love of god sort out your mic, the static is unbearable