Loadtesting & Improving your website performance

When creating a webapplication or API it’s important to test how well your site will work under heavy load, it’s easier to prevent any problems beforehand, compared to doing it when you find out your server is getting swamped with requests.
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Openhab hue motion sensor

I got the question how to use your hue motionsensor with openhab, so here are the steps you need to do:

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Parse pdf data to convert to ubl

convert-pdf-banner

Parsing pdf files reliably can be a challenge, I tried two hosted solutions and wanted to share my findings.

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Timelapse in de bergen met Olympus OM-D EM10 Mark ii & yi 4k actioncam

Sitecom WLC-1000 Review & API endpoints

As mentioned in my post about using openhab & WLC-1000 I have a few sitecom WLC-1000 cameras, and would like to tell you the things I like, and don’t like, plus give you some usefull urls I found during my research on how to use them with openhab.

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Openhab 2 Rules & Sitecom WLC-1000 Camera Script

I have openhab running as my home automation system, which allows me to control my lights and in-house ventilation system. And I have setup some nice rules to automate as much as possible, now I want to update my WLC-1000 cameras settings through openhab.

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Philips Hue motion sensor Teardown

I’m using my hue sensor in openhab and really like them, I was looking for some nice teardown pictures of the hue motion sensor, but could only find the Hue dimmer switcch dissection & Hue tap Dissection

Since I’m pretty curious what’s inside, and how they get this good batterylife I will dissassemble one of my hue motion sensors in the name of science to see what’s in there, I hope I can help someone else out with these.

I’ll try to compile a list of the items I find on the board, if you have any additions please let me know 🙂
– Atmega M2564RFR2-ZU
– 4mb serial flash 25fu406c
– Some type of Pir motionsensor

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ESP8266 & DHT22 Lowpower MQTT Sensor

For my project where I control my remote via pnps I want to create a low power sensor which will be able to send humidity & temperature data to my openhab server which is running mosquitto

Since I have some esp8266 chips laying around, this would be great to setup as a wifi mqtt sensor with the dht22, which will periodically (every 10 minutes) send new sensor data to my mqtt broker.

A quick video how to get a basic breadboard setup:

I will need it to be pretty energy efficient, so whenever the esp is done sending data, it will go into deepsleep for 10 minutes, and then wakeup and send again…

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Controlling remote with pnp for openhab

I have a ventilation system in the house, which came with a RF remote:


I wanted to be able to control my ventilation system from anywhere in the house, and had some pnp transistors which I thought would be nice to use as a switch and replace the buttons.

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Shopify Carrier Service reorder shipping options

If you use the Shopify API Carrier Service to populate your shipping by realtime to add pickup-points and other custom shipping options, you might want to re-order your shipping options in a certain way.
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