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Dani Eichhorn
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Dani Eichhorn

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ESP8266/Arduino: Playing around with the upcoming filesystem feature
I recently stumbled on a feature that hopefully soon will be integrated into the stable release of the ESP8266/Arduino environment: a file system interface. Low-Level: EEPROM Up until now and currently your best bet for data persistence in the stable releas...
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WeatherStation Kit - Complete Setup Guide Ready
While the first WeatherStation Kits are just about to reach their eager recipients I was working hard to create a complete and hopefully beginner friendly setup guide for it. Stay tuned for more chapters and more experiments and projects you can do with thi...
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ESP8266: Long Term Data Logger R.I.P. after almost 3 months.
Yesterday evening the ESP8266 the data logger connected for the last time to Thingspeak and posted temperature and humidity. It has reported these values every 10 minutes for 2045 hours or in other words 85 days. This is nearly 3 months! ESP8266 posting tem...
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WeatherStation Kit ready for your order
Great news! My supplier in China has finally sourced all the components that come with the WeatherStation Kit and I'm ready to take your orders. For a limited time it will cost only USD $19.95 and free shipping is included for more than 70 countries. The ki...
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ESP8266: Meet Thirsdee, the Intelligent Plant Helper!
It's amazing what you can do with just a few components: a load cell, a high gain analog-to-digtal converter and a NodeMCU module. You can for instance measure the water consumption of your dear plants. If you combine the previous mentioned components with ...
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ESP8266: DIY Wifi Kitchen Scale
This week I finally received all the necessary pieces to build a internet connected kitchen scale. The ingredients are: a load cell ( Wikipedia ), a high resolution ADC (HX711) and of course a ESP8266 based NodeMCU V1.0 module. For the moment I'm not loggin...
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Have him in circles
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Dani Eichhorn

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ESP8266: DIY Wifi-body-scale for less than $30
You might have realised that I'm recently into scales and load cells . So I couldn't help but trying to build my very own Wifi body scale. Since the ones from Withings easily can cost $150  my goal was not only to build one myself but to build one on the ch...
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Choosing the right Electronics Shop
In the last couple of months I could collect some experience in where to buy the electronic components I use in my projects. Since in most cases I don't care so much about several weeks of delivery time I usually order from one of several Chinese online sho...
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ESP8266, ThirsDee: 3D printed casing arrived
This was my first take ever at designing something for a 3D printer. Since I didn't have a 3D printer available with a big enough printing area I ordered it online at Sculpteo.com . And only a few days after my order I received a nice little package from Fr...
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ESP8266: Wifi data logger already running for more than 2 months on batteries!
More than 1440 hours or in other words 60 days ago I put 3 AA batteries from IKEA in the battery box of the ESP8266 test board and started a program that would send temperature and humidity every 10 minutes to Thingspeak through its Wifi interface. I remove...
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ESP8266: Calibrating the Wifi Scale With Temperature Compensation
In my last post I talked about my self made scale. There are plenty of applications for a sensor that can sense the weight of things. But I guess the scale should not be tared (or set to zero) every time the ESP8266 wakes up from sleep. The load cell is bas...
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Register now: The WeatherStation Kit is coming!
I'm very happy to announce that I could find a supplier who will ship all the parts that you need to get started with the WeatherStation. No more worries to find the right components. The WeatherStation Kit will contain: the new improved NodeMCU V1.0 with 4...
I'm very happy to announce that I could find a supplier who will ship all the parts that you need to get started with the WeatherStation. No more worries to find the right components. The WeatherStation Kit will contain: the...
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