Overheat protection using NTC and cooling fan in CADIO (ESP8266 - ESP32) | CADIO Home Automation
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- เผยแพร่เมื่อ 18 เม.ย. 2023
- CADIO Website:
egycad.com/cadio/
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CADIO Developers Docs:
egycad.com/cadio/docs/discove...
CADIO Firmware For ESP8266:
egycad.com/cadio/docs/firmwar...
CADIO Firmware For ESP32:
egycad.com/cadio/docs/firmwar...
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CADIO provides a good way to protect units from overheating. If our unit has mosfets, or triacs, or transistors, or any components that produce heat, this feature can help protect our unit.
The way this feature works is very simple, we will need a 10 killo ohm NTC sensor to measure the unit temperature, and set the maximum allowed temperature, and if the unit temperature exceeded the maximum allowed temperature, the unit will automatically turn off all loads, and send us a notification tells us that the unit is overheated!
We can also wire a cooling fan, and it works automatically if the unit temperature starts rising, to keep our unit temperature in the safe range.
The NTC has two pins, one of them is connected to the 3.3 volts, and the other pin to the ESP analog input pin.
a 10 kilo ohm resistor between the analog pin and GND.
The cooling fan is connected to GPIO5. We can use a relay or transistor to drive it, in my case, because it's a 5 volts fan, I'm using a transistor.
To activate the overheat protection feature, from the CADIO info file protection table, we set the maximum allowed temperature in celsius, I will set it to 90 degrees.
In the wiring we have connected a pulldown resistor between the analog pin and the GND, so we will leave the wiring as pulldown.
And simply select the cooling fan GPIO, using the cooling fan is optional by the way, so if you don't need it, just don't set a GPIO for it.
I will add 4 relays also to test the protection, if the temperature exceeds 90 degrees, then all those devices should be automatically turned off!
With the NTC connected, if we open the unit info page, we can find that the unit NTC temperature is displayed here.
Now, I have a unit with the NTC and the cooling fan connected, and the 4 relays are turned on.
When I use the hot air to raise the NTC temperature, the cooling fan starts working.
When I keep raising the temperature, once it exceeds 90 degrees, all relays are automatically turned off, and a notification pushed to my phone saying that our test unit was overheated, and all power loads were turned off, and the overheat icon appeared on all the unit devices.
when the unit temperature becomes lower than 90 degrees, the overheat icon will disappear, and we can control our devices normally again.
And when the unit temperature is back to normal, the cooling fan will automatically stop, and everything will be back as it was again. - วิทยาศาสตร์และเทคโนโลยี
Can you control 2 Esp8266 modules like Amica/Lolin?
Following your channel from a week. I love the way you guys are expanding it and making it more functional 👍.
I have a suggestion
Could you please incorporate the IR receiver as an extra manual control alongwith manual latch switch.
I'm planning to switch on your platform from Blynk IOT, the only hurdle is IR receiver as extra manual control of my relays
Glad you liked it sir, Thank you for your suggestion, it will be token into consideration during the discussion of future developments.
By the way, you can use rf remote controller and rf receiver module, it's totally supported in the current version, I suggest you to give it a try if available, "specially from another room, from behind the walls 😉".
Yeah, that's good. No need to pointing towards device and can be controlled from other room.
But It is more convenient to control appliances of Drawing room using TV remote. With one single remote, sitting on couch, controlling lights, fan ...
I'll try RF for other room but I already have a functional pcb with IR receiver installed in the switch board.
IR remote controllers feature in now supported!
th-cam.com/video/TCRG25qMikc/w-d-xo.html
Assalamu'alikum sir,
Can the temperature value be customized?
Thanks
Thanks 😊
Hello, you can control 9 relays with a single esp8266 board.
Please share the 8 Ch relay board connection circuit diagram for esp32
please can you add serial, so that we can control it with bluetooth serial. thank you.
Hi , i just bought a permanent license for a unit , if this (esp32 in my case) destroyed how can i use the license for a new one ?
egycad.com/cadio/docs/pricing/
how to add devices i am using 8266 if go to config mode only wifi credentials can be changed
The info file can't be edited, to create a new info file you need to erase then re-install the firmware
Ntc is not working on esp32 i connected it to d26 but same ntc work with esp8266 followed same circuit in both case
Connect it to the input-only pin (34 for example)
@@cadioHomeAutomation ok
Make home automation project with 2 esp8266 module for 2 rooms with cadio please 🙏
Sir
After upgrading to paid version for Esp32, if the board gets damaged or not working.
Whether we can change the license to other board , or we have to pay once again.
Unfortunately, transferring the license to another mcu is not supported yet!
Ok sir
But at least in the future, please try to add it
As it is very important and useful because the license is very costly,
Cancelling the old licence and replacing it with new license is very usefull.
Does the licence applicable for single ESP or we have to buy more licence for adding more numbers of ESP🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔
For single esp
egycad.com/cadio/docs/pricing/
Is cadio compitable with homeassistant or mqtt ??
Not yet, now google home and alexa
Can you make a video of controlling RGB using ESP 32
Just the same as esp8266
th-cam.com/video/a3JyYNWFGWQ/w-d-xo.html
and I have another suggestion, we need fan speed control four steps like relay one for speed one, relay 2, for speed 2, relay 3 for speed 3 relay 4 for speed 4 and off, we can take care of the rest, we can design fan regulator or you can add only 2 input for increasing and decreasing fan speed.
th-cam.com/video/HcYCt668MMo/w-d-xo.html
@@cadioHomeAutomation please make it i will be happy about, and people are asking about the diffrent between payment and free software, thank you
The trial License is valid for 500 operating hours and can be renewed for an unlimited number of times by eraseing and re-installing the firmware.
The permanent license gives the unit a permanent permission to use CADIO system resources
@@cadioHomeAutomation please the price.
@@arewatec $7.99
Why this "gpio should not be duplicate" message occurs even after having using different gpio's ???
GPIOs 0, 2, 16 are set by default to the config button and indicator LEDs.
Make sure you are not duplicate them.
By the way, you can change them if you need from the info file.
@@cadioHomeAutomation thanks for your support sir,, your response time is amazing,,great work sir 👏
Can i use this CADIO home automation as my engineering project ?
@@LokeshKumar-nb3hw no problem at all
@@cadioHomeAutomation thank you so much sir ☺️
Does this firmware have EEPROM to save last state
Yes
@@cadioHomeAutomation noice 😍
Hi
I want to use your platform offline without internet. Is it possible?
Yes, it is activated by default, but some features will not work without internet like notifications and timers.
To achieve the best offline performance, you need to set a unique unit position on the network from configuration page instead of auto positioning.
@@cadioHomeAutomation thank you. I test If I had any questions. I ask again
you are very good.What programming can be done with what Smart phone
Thank you sir, kindly can you clarify your query further please
Is it possible to program the CARDIO system with a mobile phone?
Is cadio home assistant compatible if yes thn you are my new love guys... Plz say yes.
Google home & amazon alexa
Thanks for everything
But how i can mod the info file?
After installing the firmware, connect your phone to the esp wifi network, and open the configuration page
@CADIO Home Automation Yes i do it , but i need to reconfigure it with a modification in info file without reinstalling the firmware again
Info file can't be edited, to create a new info file you need to erase then re-install the firmware.
@@cadioHomeAutomation ok thank you so much
trial version duration?
The trial License is valid for 500 operating hours and can be renewed for an unlimited number of times by eraseing and re-installing the firmware
Esp8266 and Esp32 configuration
My home Bangladesh I love your video 🙏please make video ESP8266 2 piece & single CADIO apps please make video🙏🙏😥😭😭😭
Glad you liked it❤️
To add multiple units, just repeat what you did for the first unit for the second, third etc.. Everything will be automatically handled.
Nice, can i transfer the licence to othe phone
The license is for the unit (ESP) not the phone.
Once a unit has a license, you can control it from an unlimited number of smartphones
7 days vedio uploaded 😢
Sir your
Sir upgrade your app and 1 time buy licenses to connect more esp and use