Archive for the 'diy' category
Here’s a quick howto on installing FFP on Zyxel NSA325, which is a nice NAS. Create a text file called web_prefix and put this to the first line: ftp://ftp.zyxel-tech.de/2.new_mirror/ Move the text file to the NAS, to directory /admin/zy-pkgs (zy-pkgs subdirectory in the admin share) Refresh the package list on the administrator web interface. FFP […]
The BeagleBone is a low-power open source hardware single-board computer designed with open source software development in mind, and as a way of demonstrating the Texas Instrument’s OMAP3530 system-on-a-chip.
Finally I’ve finished my old PSU’s renewal. I added overvoltage protection and a slim fan which is switched on by bimetal thermostats on the heatsinks when the temperature reaches 45°C. I bought both the slim fan and the thermostats on eBay. The overvoltage protection is a very simple circuit: when the voltage is above a […]
I have a simple DIY lo-fi microphone on the pine tree in front of our house: I record 20 sec long samples with it, every 4th hour. Then these wav files get mixed together to produce a 2 minute long output which I can use as a background sound under my automatic webcam timelapse videos. […]
Your Samsung Galaxy S phone’s compass is not working? Auto rotation is faulty? Check your hardware by dialing *#0*# – this is a factory test app for the phone. If the compass is broken there too, here’s how you can fix it: delete /data/system/ms3c_yamaha.cfg, and if there’s a backup file, delete it too, then reboot. […]
If your Samsung Galaxy S displays no network/no signal, or emergency calls only, try the following things: 1. flash the device again with the modem image (download the firmware of your device from samfirmwares.com, delete everything from the .tar file except modem.bin, and then flash this file to the phone with Odin (you can get […]
In the past few weeks I worked converting our home and work telephone system to VoIP. Here you can see the schematics: I’ve used the following VoIP adapters: Linksys SPA-3000, Linksys PAP2T, Linksys SPA-1001 (all from eBay of course). I have separate Skype users for home and the shop (skype-otthon, skype-uzlet) with a country-wide landline […]
If I call #88 on my VoIP system, I’ll hear a synthesized voice saying the current outside temperature. The quality and readibility is quite bad, but the whole thing is not hard to set up, and this way my Mom & Grandma can also listen to the temperature, so it’s worth it :) Here’s how […]
I made a widget for Android for my DIY temperature measurement system, available here. Source code is here.
See my other post about measuring temperature with USB Temper devices using a router with OpenWRT here! I’ve bought two TEMPer USB sticks from eBay and installed one of them in my room and the other one on the pine tree in front of our house. The outside sensor is around 3m from the ground, […]