All the video's you make are so unique and educative. Your video's have improved quite a lot which is truly amazing. Keep the good work up man!

I always watch your entire video. Otherwise I don’t know how you plan to get rich this week. 🤣 I really like that you’re putting yourself on camera. I really enjoy seeing the face behind the channel.

This video format rocks! 🥇 You're improving a lot! 👍

Always watch your whole video! And often am rewatching. The most beneficial are the ones where you go through the whole set up as many of these projects are sensitive to the steps in the setup. Especially the ttgo t-display s3 I have found. If you dont do the right steps with the right libraries and versions there are major issues. Fighting some right now with the display not showing or not able to connect via usb. Bought you coffee and will buy you some more. Appreciate all the help and example. Playing with the t-display long right now and definitely having challenges.

I found bluetooth to be a lot of effort with little reward using it on an arduino and never really attempted it with the ESP. The ESP NOW does look promising though . Thanks for showing what is possible though, best to family.

I watched the whole video. You do Great job. Thanks for Sharing

Thank you Volos. It was a great video.

Thanks, I did watch it right through, there seems to be a bewildering number of ESP32s. I want to explore Bluetooth but it does seem to be a bit challenging, so thank you for this video tutorial it gives me an idea where to start with something that works.

First of all, thank you for your effort. The part I do not understand is how to obtain the service and characteristic codes.

A handy tip for telling multiple BLE devices apart is to look at the RSSI value (when dis. It will vary with the square of distance, so has larger change in value when near, and less resolution further away. Using RSSI value could be used to display the closest device(s) and not display data from further away devices, or indicate location such as which device/room is nearest.

Woow.. I started to follow you with the TTGO Board when we made a system to monitor and record the temperature of vaccines. And this video as the others is amazing. I would like to have one of this BLE Xiaomi thermometers, but I think we could use the monitor we did 3 years ago. Something that I miss from the TTGO in the ESP32-S3 is the DAC pin. By the way I watched you wholes videos and I love them.

Your Video has been improved a lot, it is really appreciated. I watched the whole video.

All 11:38 were quite good. Great topic, fantastic video. I’ve been wanting to build a couple good esp based wireless outdoor temperature sensors to put about 30m from house in shady locations. Power and range are both challenging. Perhaps I should look into esp-now.

Great project presented very well. I thoroughly enjoyed it.

Hi again. I have your code working on a T-Display S3. I only have one Xiaomi Sensor, but I’m getting readings on the display. I’m assuming you’re not getting any serial output with the S3. This maybe because of the ide settings in tools. It needs to be in CDC mode for the C3 and S3 boards. Set USB CDC On Boot “Enabled”, USB Mode: “Hardware CDC and JTAG”, Upload Mode: “UART0 / Hardware CDC”. That should do it. Let me know if it works for you. Take it easy 👍🏾🤓

Thank you for an other great video yet again !

This is so kewl! Now I want to get some BLE sensors to try it out. I'm wondering if I can do this with my CanAirIO devices as well. Thanks for sharing 😊

thank you! I'm always enjoying your videos! do you take lightning payments/tips?

Yeah 1st time I have parts at hand ... *(^_^)* ...so pls continue to use TTGO _Thanks for the 6 days & vid_

I watched and enjoyed every second of this video, very cool project

Wow, an amazing lesson very useful. Thanks a lot

Great video. I'm really happy to find your channel and I'm getting a lot of UI inspiration from your videos. (I watched the whole video...twice). But there is one thing I'm not really sure why you're not using in your projects which is the flash in the ESP32. I mean you could easily save these settings (e.g. the BLE ID - device name pairs in your current example) to files on esp device instead of hardcoding them to the code. I think there can be a lot of potential (in addition to the config files) in using flash memory. For example in my current project I'm using it to store temperature/humidity/pressure data from a BME280 sensor and it would be super to show them in a nice chart/graph on a small screen like TTGO (I'm using Heltec ESP32 LoRa for this, that is an amoled, but the base idea I think will be the same), but of course it could be challenging because there are much more data stored in flash than I could display, so maybe just display a smaller portion or maybe scale down and get an avarage or something. I did not figure it out yet, because I'm concentrating on finishing the project and then I can work on the display part. Anyway I couldn't find good tutorial in charts/graphs with ESP32 and I think it would be super interesting to see your solution/idea to deal with a lot of data which obviously can't fit in memory at once nor to the display.

Hi. Where did you find : ebe0ccb0-7a0a-4b0c-8a1a-6ff2997da3a6 ? Thanks. Marc.

As always, Excellent video & Code. I learnt how to use the Lilygo t-Display S3 and boosted Lilygo sales because of you. I've just spent weeks trying to get a T-Display S3 to use a BLE client (nimble and bluedroid libs) to display data from a JK BMS..works sometimes but highly unreliable and crashes. Did you conclude or have ideas why it doesnt work??. Im still working on it and just ordered and ESP32 Wroom to try on that. Im wondering if its problems with BLE on S3, or Display lib conflict? Ram usage? ..I fear im operating well beyond my intelligence level ! Cheers Steve

Whole video! loved it

Great project, thanks for sharing it! Normally these sensors connect to a Xiaomi Smart Home Hub via BLE, so they can be remotely monitored with the Mi Home phone app. Can that work side-by-side with your solution, or BLE allows them to connect to only one other device, either the Hub or the ESP board at a time?

Thank you for this tutorial, it is really helpful. I have two questions for you: - Did you change the original firmware in the Xiaomi devices? - How often temperature and humidity are updated? Thanks in advance 🖖

Cool project.

Great content. Thank you. How many Xiaomi thermometers can you add or is the max 4 per ESP32? What is the distance between floors/rooms that it can communicate? What about historical data? Ist it possible to monitor/log by day and time?

To the end... Thanks!

Nice project and design as always. However , I doubt that BT connection is the right choise for reliable connection inside house, having walls and even sometime different levels. I think that using ESPNOW will be much more efficient, or for example LoRa. I realize, that in this particular project it is not possible to implement other types of connection, but it will be very interesting if you concentrate your attention on completely custom project ( I mean , including the temperature sensors, not standar ones).

@VolosProjects I'm not a c programmer but ifndef means if it's not defined and you can define the number of ble devices in your arduino sketch (I think it has to be before the import of the library, but my knowledge of c is zero) - this will override the library value. No need to modify the library every time.

I works because these board w/ BL V4.2 (maybe) I use the same board for my project w/ battery because other just doesn’t work w/ 4.2

Thanks! Another beautiful video but I can't even get VS Code (Platform IO) to edit the TFT_eSPI - User_Setup_Select.h headers from your old video 😭 I think I may not be destined for any success as a coder. 😩 happy to buy you cofeeees

Always all the way to the end

Nice project! How long do this sensor work between battery-changes? And what is the range?

I still have problems configuring that weird TFT library. Isn't there a pre configurated or easy configurable version for T-Display availible? There' so much other products and versions and possibilities inside I always get confused and messed up with ! 🙄

Excellent video and monitoring temperature in different locations is very handy. Do you have any idea why it will not work on the ESP32-S3 boards yet? Possibly a different BLE type?

Nice project 👍👍👍

Very interesting video and very good explanation 👍 Is it possible to Use a lilygo esp32 s3 module with tuya app or smart home app ? I have a tuya water sensor that I want to be displayed on the small lilygo esp32 s3 module. If you can help this will be amazing. I want to use dedicated small t3 displays for different tuya sensors. Like temp and humidity on one lilygo s3 display module and tuya water level sensor on another lilygo s3 module.

Great job, I hope the corporation doesn't decide to sue you, like Haier #boycotthaier

Excelent project

I watched full ;-)

Great use, I want to do something similar and mainly standalone without depending on a hub/server or phone. Im curios about the range, can I have the ttgo in the living room and have the sensor is separate rooms and still get the readings? Thanks for sharing your projects

Nice little project! I'm going to have to pick up a couple of these thermometers. Any idea how long the batteries last in them?

Ofcourse i watch whole video 🙂

Hello from brazil

whole video! pozdrav

These are good but the app app doesn't let you save a history that's the only thing annoying really, if you leave it constantly running it will run the battery down won't it? I think the thermometer keeps a history of temperatures itself somehow

@Volos: How accurate are the sensors? And is there much difference after a few hours at the same location? I really like them but go nuts of sensors that are not accurate enough. PS: watch most of your videos to the end and love the short concept. Just enough info and not filling the 30 minute yt algorithm with blablablabla.

4 Xiomi thermometers and 4 different temperatures, from 21.4 to 22.8. Did they lay there for a while or did you just collect them from different rooms?

im curious, lets say i want to build a desk clock using m5 screen module, if it runs on an AA or AAA battery, how long will it last?

Could someone say me how contact to Volos for a Project Requirement.?

odgledano do kraja i nema potrebe da te hvalim uobrazices se posle zezam se malo pozdrav

Where you get those sensors? I don't see the link in the description.

lily go?

Can you use the esp32 with those thermometers to provide data to home assistant?

Hi Thank you for such an interesting implementation! Could you please kindly confirm the libraries you're using? I am using these and the nice display came up only for a brief moment once and now it doesn't anymore... Using library NimBLE-Arduino at version 1.4.1 in folder: C:\Users\AAAA\Documents\Arduino\libraries\NimBLE-Arduino Using library TFT_eSPI at version 2.5.34 in folder: C:\Users\AAAA\Documents\Arduino\libraries\TFT_eSPI Using library SPI at version 2.0.0 in folder: C:\Users\AAAA\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.14\libraries\SPI Using library FS at version 2.0.0 in folder: C:\Users\AAAA\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.14\libraries\FS Using library SPIFFS at version 2.0.0 in folder: C:\Users\AAAA\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.14\libraries\SPIFFS

I think I saw a gray hair.

💥❤