Archive for November 2010

Brother MFC-7340 Setup Under Linux

I just bought a Brother MFC-7340 multifunction laser printer to replace my old Lexmark Optra E310 which I have had for about ten years. Lexmark Optra E310 has excellent Linux support and I have been using CUPS to make it a networked printer. So naturally, I wanted to setup the new printer the same way. Continue reading ‘Brother MFC-7340 Setup Under Linux’ »

Temperature/Humidity Data Logger — Trial Run

I built a rather generic I2C data logger a few weeks back. As I mentioned in my earlier posts, it can be used to log data from almost any I2C slave devices with relatively little code modification. Continue reading ‘Temperature/Humidity Data Logger — Trial Run’ »

Hex/Bin/Dec Converter And Calculator

When working with micro-controller projects, it is often necessary to perform calculations in binary and hexadecimal forms. While almost all calculator tools (such as calc under Windows and gcalctool in Linux) can handle such tasks, they are designed for general purpose calculations and not geared specifically towards working with digital circuits. Continue reading ‘Hex/Bin/Dec Converter And Calculator’ »

Wide-band RF Field Strength Meter

Field strength meter is extremely useful when working with RF devices. It can be used to quickly diagnose whether a transmitter circuit is working, and can be used to detect RF signals in the environment. Continue reading ‘Wide-band RF Field Strength Meter’ »