Author Archives: Mikko
I²C troubleshooting
Sometimes you might run into a situation when one or more of your I2C devices don’t work. I deal with barometric pressure sensors in my work and these work on the I2C bus. I’ve been banging my head against the … Continue reading
What happens when a V-groove hits your copper pour
When you design PCBs for work, cost-effectiveness is a big factor. To help you out in the that department, you usually design your board to be a big panel. This panel is then CNC routed to contain a V-groove. This … Continue reading
I²C Address Probe for PICs (CCS compiler)
As a part of my work, I wrote this simple I2C address probe. It’s for PIC microcontrollers, using CCS compiler. (It’s here mostly as a note for myself, but you might find it useful as well.)
Comments disabled for now
I’m disabling comments for now. I get two to three spam comments a day, which isn’t much by itself, but I get a notification on my phone every single time. That’s annoying. For spammers: don’t waste those poor Indian people’s … Continue reading
Mils to millimeters cheatsheet
When I design PCBs I use millimeters for drill sizes, component pad distances and sizes and for board outlines. Somehow I ended up using mils for trace widths and clearances. This doesn’t really make sense, and now I decided I … Continue reading
Project AmbiHDMI is progressing
I’ve made progress with AmbiHDMI. The PCB shipment is on its way from China, and it should arrive early next week (I hope!). UPS dropped off a package from Farnell today. See, I was contacted by Farnell a few weeks … Continue reading
The Transformation of Samsung SCX-4200
(This is the English translation of my reader article on Ruuvipenkki) I bought a Samsung SCX-4200 around five years ago. I was just starting my engineering studies and figured I’d need a printer. Searching around for a suitable candidate, the … Continue reading
About some projects that I’m working on
I thought I’d write something here for a change. I have a pretty short attention span when it comes to my free time projects, but all the projects progress at some pace nevertheless. A lot of ideas marinate in my … Continue reading
Designing a USB sound card
(This is an English translation of my article at Ruuvipenkki forum.) 1. Introduction In this article I will discuss my own experiences about designing a USB sound card, which is the USBDAC. DAC is an acronym for Digital-to-Analog Converter because in … Continue reading
Installing Android 4.0.3 Ice Cream Sandwich on HTC Desire
I’ve had the HTC Desire since October 2010 IIRC. Back then, Android 2.2 was all the rage. I was very happy with it. Soon later, Android 2.3 was released and all Desire users eagerly anticipated the arrival. HTC eventually delivered… … Continue reading