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, which will periodically (every 10 minutes) send new sensor data to my mqtt broker.

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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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Gaining Root Access on Philips B120N Babycam

 

I wanted to try rooting my B120N cam, and tried to follow Paul Prices Owning Philips In.Sight IP Cameras But unfortunately Philips decided to close all interesting ports in the firmware version my cam was running.

I did find a way to gain root access, and I wanted to add a recording of the process, but I dropped my cam while resetting it, rendering it useless 🙁 So I can only give you the steps I took, to root it (I have ran the rooted cam for 14 days without problems) so you can try it yourself.

For this setup I used mitmproxy to capture the traffic from the B120N when it was freshly connected to my wifi network.

When opening the mobile application I immediately got a message to update my cams firmware, when I hit update I saw multiple requests passing through:
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whisper-node

HC-SR50 Motion sensor at 3.3v & whisper node low power

I recently found this tutorial to convert the HC-SR501 PIR Motion sensor, to allow it to run on 3.3V, so I thought I would give it a try, to use it with my whisper node, and make it count the amount of people passing the sensor, trying to make it run on a coincell battery.

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papertrail

Using papertrail logging in Slim Framework v3 with MonoLog

I was looking for a good way to group logs from different webapplications into one managable place, without too much configuration work on the different webservers, since some run on shared hosting, and some have different setups.

I came across Paper Trail App A hosted log management tool, which gives you the ability to aggegrate logs from different places into one location, and here you can filter and group different webservers together, and search the log history.

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onesignal

Use Onesignal Push notifications in Telerik Platform Project

Since Telerik only provides filters for pushmessaging starting at the $149 monthly subscription, I was looking for a good plugin to use in my cordova application.

I found the OneSignal plugin, it looks great, and has an API, so I can send pushmessages from my webserver. Read More

telerik-platform

Telerik platform mobile development

I have been using Telerik Platform for some time now, I was quite happy when using the trial, but since I have taken a $39 monthly developer subscription to create my mobile applications, I have had some great features gone missing 🙁
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Simple database backup shellscript

I made a simple shellscript it will:

  • dump a few databases
  • create a tar.gz from them
  • scp a copy of the tar.gz to my backups folder on a remote server, this way I will always have a backup of my most important databases on a remote location.

Just save it in a file, and add it to your cronjob (crontab -l) I run it every 4 hours, by adding this to my crontab:

 

Talk2 Whisper node CR2302 Battery Test

I’m currently testing batterylife with the whisper node and a CR2302 battery.

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