arduino – Tom IT

Philips Hue motion sensor Teardown

ByThomaslInDevelopmentOnJune 20, 2017

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
–

Controlling remote with pnp for openhab

ByThomaslInDevelopmentOnMay 11, 2017

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.

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

ByThomaslInDevelopmentOnNovember 30, 2016

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.

Talk2 Whisper node CR2302 Battery Test

ByThomaslInDevelopmentOnOctober 4, 2016

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

Talk2 Whisper node & ESP8266 base station code

ByThomaslInDevelopmentOnSeptember 18, 2016

I have my basic whisper code ready and working, I used part of the talk2 library code from their bitbucket repository and changed it to my needs.

Talk2 Whisper node first client server setup

ByThomaslInDevelopmentOnSeptember 16, 2016

The Talk2 whisper nodes are low powered boards based on the Atmel AVR ATMega328p microcontroller. This board can be powered with as little as 0.9V. You can even run it o a CR2032 battery for a long time with correct coding.

Talk2 Whisper node, low power sensors

ByThomaslInDevelopmentOnAugust 23, 2016

Today I received my Whisper nodes from https://talk2.wisen.com.au/, these devices are a lot more low powered compared to the esp8266, I will be testing these to see if I can get a similar working setup with less battery drain, to get longer batterylife from smaller batteries 🙂

ESP8266 Software

ByThomaslInDevelopmentOnJune 26, 2016

For my sensor project I want the ESP8266 and The HC-SR04 Ultrasonic sensor to periodically collect and send data to my server. For easy configuration of the esp I took the ESPwebconfig software and stripped it to the essential parts that I needed.

ESP8266 HC-SR04 PCB Version

ByThomaslInDevelopmentOnJune 25, 2016

By now I already have had a professional make the pcb design called vortexe9000 on fiverr, we discussed the design, I asked him to add a switch (pin 15 to gnd for easy flashing of the ESP) and he gave me some great advice to make it more compact (not needing the I2C and stepdown module).

Test Setup ESP2866 ESP-12 HC-SR04 on Batteries

ByThomaslInDevelopmentOnMay 15, 2016

I’m currently building a sensor based project, where a sensor needs to gather data every hour, and send it to a server, I first thought it would make sense to use an arduino board, connect a wifi shield and set the thing up.