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 …
Month: June 2015
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 a OLED …
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 …
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 logging the data …
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 …
ESP8266: NodeMCU Dev Kit V1.0 Review
This post is due for a while now but I had so much fun actually using the NodeMCU that I totally forgot (or postponed) to write a review about it. So, let’s get started: The new NodeMCU V1.0 Dev Kit module Image Source: https://github.com/nodemcu/nodemcu-devkit-v1.0 The first …
ESP8266: Weather Station V2 Code published
This is a total make over of the earlier weather station. Instead of building my code on the NodeMCU lua firmware I decided to switch to the Arduino IDE based development setup. The reason for this was the constant problems with heap memory running out …
#ESP8266: Open-Source Designer Advice wanted for the weather station!
So, all the major technical challenges have been resolved. But now the fine tuning begins. Anyone with a graphical eye in the audience to give advice? How to arrange the different elements most efficiently so that it is pleasant to eye and brain and uses …
#ESP8266: Improving the WeatherStation Display
These tiny OLED displays are cool, but they are also… well… tiny. To get the most of the screen real estate I started working on a little framework that allows you to display different cards on a carousel, which then are transitioned from one to …
#EPS8266: long term data logger update: 31 days!
My long term logger test is already running more than 31 days or at the time of writing 750 hours! My pessimistic guess was that the device running from 3 AA batteries would stop running after 30 days. What is your guess? These charts are …
ESP8266: 3D printed case for the weather station project
You just got to love open source! Some guys wrote a firmware for an exciting little chip (ESP8266), based on an open sourced SDK: the NodeMCU lua firmware was born. Then another guy (me;-)) writes a little LUA program to fetch weather data from an …