I recently bought a 7-port USB3 hub from eBay. That’s a somewhat interesting experience. It turns out that’s it’s not a 7-port USB3 hub. It’s a four port USB3 hub, and a three port USB2-hub, which happens to be mounted on the same board. Inside, it contains two major IC’s: One of them, the VL815, […]
So, I’m talking to the Trådfri GW. It turns out that my initial research was correct. It is talking coaps. I used californium.tools/ to talk to it, requesting coaps://10.0.3.25/.well-known/core. It actually seems to implement the standard rather well 🙂 I had to use -psk and enter the security key, printed on a label under the […]
Tagged hardware, Linux, nettverk, trådfriSo, Ikea has released Trådfri seemingly worldwide. This is a series of Zigbee enabled lights, which looks quite neat. I bought the starter kit, with a gateway, two bulbs, and a remote control. First a couple of sentences about the remote control. It has on/off, dim up and down, and change color temperature. Nothing too […]
Tagged coap, hardware, ikea, led, nettverk, sikkerhet, utilities, zigbeeThe Netgear readynas is essentially a x86 computer, with a handy Serial TTL interface at the back. However, it’s not entirely straight forward. Unetbootin-created usb-media did not boot, but the debian netboot iso appears to boot. However, it doesn’t support serial console out of the box. After remastering the netboot image with settings for console, […]
As you may’ve guessed from some previous blog posts, I have been expirementing with Raspberry Pi as media player. The setup was not entirely straight forward, as it was to be located at my girlfriends place, with access to the media I have at home. I was looking at OpenVPN as solution, tying the networks […]
Tagged hardware, Linux, network, software, utilitiesI’ve recently tested Xbian and Raspbmc. Xbian seems to be based of raspbmc, with a few changes, for example a quite sleek setup plugin. Raspbmc, in turn, are based on Debian, the well known Linux-distro, with apt and all the snacks. Both are painless to setup, and works quite fine for playing media files. However, […]
Tagged hardware, Linux, raspberrypi, software, usability, utilitiesThe Logitech M570 trackball is good. If I use a normal mouse, I’ll get a stiff shoulder after a couple of days. What I can use is an clitoris or trackball. My x220 has a clitoris, which I don’t like in games. The trackball, however, works fine in openTTD. I’ve used various trackballs before, but […]
Once again, I’ve gotten myself a Canon compact camera that can run CHDK. Apart from some minor details, it works great. One of the stupid things is that the lens does not come out automagically when turning on camera with CHDK activated. I need to do a half press of the shutter first… OK, I […]
Tagged chdk, foto, hardware, software, utilitiesCHDK is software for some Canon compact cameras, which allows somewhat more than the original firmware. Or rather – it’s a addon for the original firmware. Quite risk free. On Ixus 100/SD780IS (can someone explain why canon insists on seperate names for EU and USA?), it is as of writing only a beta port – […]
One of the things I’m wondering about is what the two golden contacts at the opposite end of the USB is for. It seems strange to place ’em there, but who knows? In total, the active parts of this USB memory device 561mm3, and can contain 16GB of data. If we scale this up, we […]