Bought like 12 of those the first video dropped. Working fine. Updated them like in September without a hassle. And yes: thank you again for your great work
even more great work...I followed the earlier video and thought I had a different view afterwards, but the battery percentage is great as well..and all 4 of my sensors are working well
Hi Aaron, This is a fantastic bit of work. Thanks kindly for all your effort. Could I ask a quick question? Id like to know if it is possible to use these sensors to achieve something similar to ESPresence or would the battery drain be to great?
Hi Aaron! I had that problem and I wrote a comment on your previous video. I'll be able to test the new firmware in some that I think are 1.9s I'll let you know how that works.
Hello! I would like to ask for your help. I also bought such a small sensor. My goal with it is to measure and display the temperature in a tank in the xiaomi system. I would like to connect an external NTC thermistor. 1. Does anyone know what kind of sensor it has if I only want to use the temperature? for example NTC 10K B:3950 2. Does it have an input point (p1,p2,p3 ...etc) where it can be connected? The solder point on the original sensor is quite small.
Hello and thank you for sharing this! I have two of these i want to use in ioBroker. I have flashed one of them with your "Release 78". After this, the Xiaomi is not shown any more nor in the flashing tool, not in the ioBroker BLE (after reinstalling the adaptor) or in the Xiaomi Home-app (Android). The original one is visible. In ioBroker BLE Active plugins is set to "Xiaomi, Mi Like". The BLE in ioBroker works with a FlowerCare-stick, and the original Xiaomi temp/hum is shown, but shows only "fe95" and a long string. Not sure witch revision the Xiaomi is, but there is a PCB-trace from Reset, through the "s" in Reset and down/right through the upper right part of the batterycircle. Two traces above the Reset-dot.The flashed device works normaly on the display with normal values. What can i try to get these Xiaomi's to work with ioBroker? Thanks again
Hi , i bought 4 pieces , version 2 from this . But i think the hygro data little higher than the normal . I have the the hygrovent in the bathroom , and the vent show about 15 % lower than the other 4 piceses Mi sensor...🤔
These could be excellent displays to be used to arduino projects given they are wireless and have long battery life. Is there any way to achieve this? Thanks.
Hello Is ther this days 2024 some web side with all the compatible Bluetooth Hygrometer's that exist, I'm very interested if any other branded Hygrometer's are working with this firmware or with the Xiaomi app to readout (or the custom firmware work on them too 🤔) the data on the phone, like the Mijia App ect.? 🤔 🤗
Hey danke für das Update Video.... Ich kann leider den Unterschied zwischen deinen Versionen optisch nicht erkennen, weil das Video so stark am wackeln ist und nie beide im direkten Vergleich scharf gestellt sid. Kannst du mir bitte ein Bild schicken von dem Unterschied woran ich die Versionen unterscheiden kann?
Unfortunately, after the latest Xiaomi update version:2.1.10159 it is no longer possible Authenticate and then flash. Could you resolve this if possible?
Hallo Aaron, Vielen Dank für die viele und gute Arbeit ! Ich habe Probleme im online Flashtool die Bluetooth Geräte angezeigt zu bekommen Habe da 3 Geräte von 2020 11 Ein Samsung Tablet als auch mein Iphone zeigt mir keine Geräte im Tool an, so das ich gar nicht weiter komme Mache ich da was falsch oder muss ich da was spezielles beachten Danke !!
I just received the new sensors and they showed as B2.0. Sadly the firmware after upload prevented the device to connect again via flasher, so that's new.
Hi Thank you for your work I just flashed 2 units and everything was smooth. But.... If I remove the smiley it disappears, but if I reboot the device the Smyle appears again. What I'm i doing wrong? Can you help?
I just tried your method with a device recently arrived, but it is freezing at the 'Do Activation' step. This device is B1.7. Is this version compatible to this method? Thanks.
I'm wondering if they could be made even smaller and thinner, with a 3d printed custom case, to fit in smaller project boxes or even Pill boxes to controll the humidity. 🤔
@@atc1441 Thank You Very Much. Do you know maybe for the sensor what the minimal and maximal voltages are, I'm wondering if I could use a Standard lipo 4.2v or if I have to put a voltage regulator on it, also do you know maybe a smaller version of this sensors that work with your firmware stuff ? 🤔🤗
I think 2V min and 3.6V is max, so better not connect a lipo :) LDO or Lifepo4 is fine A custom PCB could be made smaller of course^^ but I don't know of any smaller existing one
Hallo Aaron, sehr schöne Videos. Allerdings habe ich 3 Stück geflasht, davon belebt bei zweien danach das Display dunkel und bei einem werden alles 8ten usw. angezeigt. Leider ist mein Englisch nicht so gut, dass ich den Fehler finden kann. Kannst Du hier helfen? Danke, Andreas
Danke fürs Testen da muss ich noch mal schauen was mit der version B1.9 nicht stimmt. Leider habe ich diese Version selber nicht und kann so nicht viel testen, sollte aber in der zukunft noch welche bekommen. Entschuldige bitte dass ich jetzt nicht direkt helfen kann :)
Update: The B1.9 is now also fully working with the custom firmware
Bought like 12 of those the first video dropped. Working fine. Updated them like in September without a hassle. And yes: thank you again for your great work
Thank you for your work!! Keep on the great work.
Thanks for the update and your work 👍🏻
Thanks Aaron for the support !!!!!!!
even more great work...I followed the earlier video and thought I had a different view afterwards, but the battery percentage is great as well..and all 4 of my sensors are working well
Thanks you very much. Very appreciated!
geile arbeit
Hi Aaron, This is a fantastic bit of work. Thanks kindly for all your effort. Could I ask a quick question? Id like to know if it is possible to use these sensors to achieve something similar to ESPresence or would the battery drain be to great?
Hi Aaron! I had that problem and I wrote a comment on your previous video. I'll be able to test the new firmware in some that I think are 1.9s I'll let you know how that works.
Perfect, thanks already for testing
@@atc1441 yes! It worked for me too! 👍 👍
Perfect thanks for letting me know
Hello! I would like to ask for your help. I also bought such a small sensor. My goal with it is to measure and display the temperature in a tank in the xiaomi system. I would like to connect an external NTC thermistor.
1. Does anyone know what kind of sensor it has if I only want to use the temperature?
for example NTC 10K B:3950
2. Does it have an input point (p1,p2,p3 ...etc) where it can be connected? The solder point on the original sensor is quite small.
Does anyone know an iPhone app that is compatible with custom firmware?
Hello and thank you for sharing this! I have two of these i want to use in ioBroker. I have flashed one of them with your "Release 78". After this, the Xiaomi is not shown any more nor in the flashing tool, not in the ioBroker BLE (after reinstalling the adaptor) or in the Xiaomi Home-app (Android). The original one is visible. In ioBroker BLE Active plugins is set to "Xiaomi, Mi Like". The BLE in ioBroker works with a FlowerCare-stick, and the original Xiaomi temp/hum is shown, but shows only "fe95" and a long string. Not sure witch revision the Xiaomi is, but there is a PCB-trace from Reset, through the "s" in Reset and down/right through the upper right part of the batterycircle. Two traces above the Reset-dot.The flashed device works normaly on the display with normal values. What can i try to get these Xiaomi's to work with ioBroker? Thanks again
Hi , i bought 4 pieces , version 2 from this . But i think the hygro data little higher than the normal . I have the the hygrovent in the bathroom , and the vent show about 15 % lower than the other 4 piceses Mi sensor...🤔
is there a way to dowload the temp and humidity info to a .txt file or something like that? greetings
These could be excellent displays to be used to arduino projects given they are wireless and have long battery life. Is there any way to achieve this? Thanks.
Hey. That is no problem and possible, only negative thing is they are only segment displays and not matrix
@@atc1441 that should still make it easier as the display capabilities are just narrowed more 😛
Hello
Is ther this days 2024 some web side with all the compatible Bluetooth Hygrometer's that exist, I'm very interested if any other branded Hygrometer's are working with this firmware or with the Xiaomi app to readout (or the custom firmware work on them too 🤔) the data on the phone, like the Mijia App ect.? 🤔 🤗
Hey danke für das Update Video.... Ich kann leider den Unterschied zwischen deinen Versionen optisch nicht erkennen, weil das Video so stark am wackeln ist und nie beide im direkten Vergleich scharf gestellt sid. Kannst du mir bitte ein Bild schicken von dem Unterschied woran ich die Versionen unterscheiden kann?
Unfortunately, after the latest Xiaomi update version:2.1.10159 it is no longer possible Authenticate and then flash. Could you resolve this if possible?
Hey, you can still flash it via a USB to UART converter. Not as nice as OTA but still not too hard
Hallo Aaron,
Vielen Dank für die viele und gute Arbeit !
Ich habe Probleme im online Flashtool die Bluetooth Geräte angezeigt zu bekommen
Habe da 3 Geräte von 2020 11
Ein Samsung Tablet als auch mein Iphone zeigt mir keine Geräte im Tool an, so das ich gar nicht weiter komme
Mache ich da was falsch oder muss ich da was spezielles beachten
Danke !!
🖖 👍
I just received the new sensors and they showed as B2.0. Sadly the firmware after upload prevented the device to connect again via flasher, so that's new.
I also have B2.0, can send some for debugging.
The king of reverse engineering!
Hi
Thank you for your work
I just flashed 2 units and everything was smooth. But.... If I remove the smiley it disappears, but if I reboot the device the Smyle appears again. What I'm i doing wrong?
Can you help?
Hey. You need to save the settings to flash by clicking the "save current settings into flash" button.
Greetings
I just tried your method with a device recently arrived, but it is freezing at the 'Do Activation' step. This device is B1.7. Is this version compatible to this method? Thanks.
Hey.
Please use Victors version of the firmware that is linked in the github repo.
That one is way more advanced and still maintained :)
After flashing, I cant connect with xiaomi home app. Is there a way of fixing this? Thanks.
Hey.
No, when reflashed the original app does not work anymore
Hi. If the device is flashed with your firmware, can you still use it with Xiaomi Gateway and Mi Home?
Hey, no thats is not possible anymore
I'm wondering if they could be made even smaller and thinner, with a 3d printed custom case, to fit in smaller project boxes or even Pill boxes to controll the humidity. 🤔
That should work, but keep in mind that the lcd is just pressed on the pcb with zebra stripes, the new design needs to do it as well
@@atc1441 Thank You Very Much.
Do you know maybe for the sensor what the minimal and maximal voltages are, I'm wondering if I could use a Standard lipo 4.2v or if I have to put a voltage regulator on it, also do you know maybe a smaller version of this sensors that work with your firmware stuff ? 🤔🤗
I think 2V min and 3.6V is max, so better not connect a lipo :)
LDO or Lifepo4 is fine
A custom PCB could be made smaller of course^^ but I don't know of any smaller existing one
@@atc1441 Thank You Very Much 🤗
Hello Aaron Christophel, i have new board version, will custom firmware work? Thanks
CHMLmini_TLW_V2.0
202107
HW: B2.0
Ough another version, this one is new to me so i can not say if it will work.
You could try if you are willing to loose it
Here is some image
drive .google .com/drive/folders/1Ai_f-tjX_j49m1U4yH1xAEeEzcjOQqWb?usp=sharing
@@atc1441 I will try it asap because temperature measurement is not accurate
@@atc1441 custom firmware works on this new version :))
I just received 5 New Sensor from Aliexpress, and they are "B1.7" version. Will they also work, with your latest firmware?
Hey.
Better use Victors Repo / Firmware version. They can work with this but his firmware is more advanced and proven to work
Hallo Aaron,
Ich habe Version 2.0
Ich kann mich mit dem Flasher nicht verbinden?!?
Hallo Wolfgang, ich kenne Version zwei noch gar nicht. Versuche es bitte mot verschiedenen endgeräten
@@atc1441 Hallo Aaron
Mit Edge hat es endlich geklappt.
Habe 3.5 geflasht.
Zeigt jetzt HW 1.7 an
Ich kann Version B2.0 zu Testzwecken zu dir schicken. Der ist erstmal „über“.
Hallo Aaron, sehr schöne Videos. Allerdings habe ich 3 Stück geflasht, davon belebt bei zweien danach das Display dunkel und bei einem werden alles 8ten usw. angezeigt. Leider ist mein Englisch nicht so gut, dass ich den Fehler finden kann. Kannst Du hier helfen? Danke, Andreas
Moin.
Bitte schau doch mal welche Version du hast.
github.com/pvvx/ATC_MiThermometer/issues/125
@@atc1441 Ich habe gleich die erste gezeigte Version 1.9. Auf der Platine steht auch das 202105 HWB1.9.
Komisch das es dann nicht funktioniert.
Teste doch bitte pvvx version auch einmal und schaue ob es da besser wird
@@atc1441 mit pvvx geht es wieder, nur in Homeassistant wird nichts angezeigt. Die Entität ist vorhanden, aber Daten werden nicht empfangen.
Danke fürs Testen da muss ich noch mal schauen was mit der version B1.9 nicht stimmt.
Leider habe ich diese Version selber nicht und kann so nicht viel testen, sollte aber in der zukunft noch welche bekommen.
Entschuldige bitte dass ich jetzt nicht direkt helfen kann :)