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I had a couple of issues when using David Barkers module NMEA.bas on my Big GPS Clock project. In particular, variables were being corrupted making the program very unstable. I'm not familiar...

I'm working on a control system that will have several relays, a bunch of LEDs and a number of switches.  I was rapidly running out of port pins on a TAP-28 board to handle all the desired I/O.  Possible solutions included adding an I2C port...

Most micro-controller projects use port pins for outputs, often to turn on an LED or motor.  When using a port pin as an output, we usually think of two states.  A low state means the pin is connected to ground, while a high state means the...

I recently found an interesting circuit worth sharing that covers a few handy pointers for charging NiMH batteries. Float charging has the advantage of keeping the cells fully charged and ready to use without the potential damage of long-term trickle...

What's not to like about the idea? A GPS module is the perfect companion to the humble clock and ensures the time is always accurate and never needs adjusting (unless you live in an area that has daylight savings). Better still, the GPS module does...

A friend of mine is evaluating solar panel technology for a large-scale home project.  An irradiance meter is a handy tool to help evaluate various options.  This irradiance meter is a fusion of pieces that came together to make a...