1. Download and install python Download link: https://www.python.org/downloads/windows/Now Download the latest version Windows installer (I used 3.9.9 64-bit. Click the Add Python xx to PATH.. this will save you time when you need to execute a python command.then press install now. (wait until the installer is finished) Then click: 2. Install ESPhome Open the start… Continue reading How to Install ESPhome and use Open Duco (mini/Pro)
I get this question asked allot..
Step 1 : Remove all the Cables Very important :Unplug the power cable! Failing to do this may cause serious harm or death!! If you don’t know what you are doing or don’t understand the steps below. Please ask someone for assistance. Or call in a professional. Verify that you disconnected the power cable! (check,… Continue reading How to install the Open Duco Mini
It’s finally there! The Open Duco Mini 😀 The goal was to creat a miniature drop-in replacement for the DucoBox Silent. The following features are supported in V1.1: Reading of two sensors (Humidity & Co2) or any other ESPHome supported sensor (for more information see pinout of sensor 1 & 2 Reading the RPM of… Continue reading New Product: Open Duco Mini
Tools: You need the following: STM32CubeProgrammer : Click Programmer: ST-link v2 or V3 ,Super cheap option: Click Hex/ELF files: Click (Pro for for air purifier PRO, V1.0 For the 3H/2S) Xiaomi Modchip Step 1 Open STM32CubeProgrammer: Press open file (Next to device memory) And navigate/load to the correct HEX/ELF file. Step 2: Connect Connect/Solder/Use pogo-pins… Continue reading How to: Update/Upload firmware in the Xiaomi Modchip.
I was planning to release this way earlier than October, but work and private life got in the way 🙁 Small introduction into the problem: Two distinct signs: Slow to respond to particle changes. Display only shows 001 Cause: The sensor used in the Xiaomi Air Purifiers is the: PMS9003M by Plantpower Datasheet:PMS9003M This sensor… Continue reading Xiaomi 001 PPM FIX, Update!
The following is released: Schematic B.O.M (Bill Of Materials) Gerber Files 3D files of the Housing Schematic: Download Schematic: B.O.M: Gerber Files: Change file name to: 00000-4216-Co2-Sensor.Gerber.V2.1.zip (add Z to zip) Step File of PCBA Housing Files: When 3D printing add support to the TOP side underneath the clips. More info on Github:
NEW UPDATED ARTICLE: CLICK Below is an old method, THIS WILL VOID YOUR WARRANTY.In the updated article is a method that won’t void any warranties I received an email from Pekka (Thanks!) who found out about this problem in a video/comment. Two distinct signs: Slow to respond to particle changes. Display only shows 001 Cause:… Continue reading Xiaomi Air Purifier 001 PPM FIX!
The following is released: Schematic B.O.M (Bill Of Materials) Gerber Files 3D files of the Housing Schematic: Download Schematic: B.O.M: Gerber Files: Change file name to: 0000-4218-vochtsensor-humidity-sensor-SHT-20.GERBEer_V2 .zip (add Z to zip) Step File of the PCBA: Housing: When 3D printing add support to the TOP side underneath the clips.
After opensourcing the mod chip I wanted to give some insights on how the mod-chip itself works. open source info: click As can be seen in the image above, the system consist out of several sub systems.The two most important sub-systems are: NFC Filter Stm32F412RET6 There are two ways to bypass the NFC filters, Make… Continue reading Xiaomi Air purifier 3H/C/PRO NFC MOD, How does it work?