Category: Hardware

If you don’t hear about it FPV Japan is a small device that records standard definition video from analog sources. This is an indispensable device for FPV RC pilots and the ones who want to digitize old analog video tapes. I fall into both categories, but unfortunately the video cable…

Build the sketch Find /tmp/build*.tmp folder. There should be one, if you see multiple then rm -rf /tmp/build*.tmp and rebuild the sketch. Only one build folder should be in the /tmp (for simplicity run avr-size /tmp/build*.tmp/[sketch_name].elf sum of data and bss values if the number you’re looking for

I’m working on a new RTFMs episode that involves packing an RGB LED and a microcontroller into a very tight space. The microcontroller I decided to use is PICAXE-08. I chose it for three reasons: – I had one in the box – I had no other plans for it…

I am working on one of my projects from RTFMs video blog (check out http://rtfms.com) that requires temperature sensing in a very small packaging. Naturally my choice is ATtiny85 – an awesome little chip from AVR that besides other goods (like 6ch PWM, serial interface etc) has internal temperature sensor….

Here is some information for those looking for a high-end HT. My requirements are: At least dual-band (tri,quad-band is a plus), including 144 and 440 bands at minimum Good wideband receiver All-mode receiver Convenient control Weather proof Ruggedly built Having a lot of features, leaving a lot of space for…

On some linux machines when you run wireshark you may notice that a lot of packets are marked as invalid (highlighted as black). The contents looks perfectly correct, but for some reason checksum is brkoen and wireshark suggestes that the reason for such unpleasant event is “TCP checksum offload”. Let’s…

I was recently compiling some Arduino code with NewSoftSerial and got hit by infamous “Error: register r24, r26, r28 or r30 required” error. NewSoftSerial is a great library and those using older avr-gcc compiler enjoy it alot. Problem is the newer gcc doesn’t like one nasty error in the code…

I started posting instruction on how TMHRITWE was built. The first three parts are overclocking, serial interfaces and “POE”. I especially recommend reading the “POE” part as all “POE” hacks I saw before contain one mistake potentially fatal for your router.

iPhone with all its user interface bells and whistles, great functionality and stylish design is a great device, I have very little doubt about that. Unfortunately for a few days I was experiencing a problem with it that made me think being the best organizer ever it is one of…