Burkhard Kainka (212)

| A microcontroller board that serves as the foundation for a programming course must be easy to use while still having all the ingredients of...

| USB ports can be used in many applications in the field of electronics. However, unlike the RS232 interface, devices have not become availab...

| PC radios are certainly nothing unusual. However, unless you are prepared to spend a lot of cash you can’t buy a wideband PC radio that rece...

| Actually, the age of valves is already past — but valves just refuse to go away! There’s many a valve radio still in use, and there are many...

| It normally takes two transistors to build a blinker circuit (in order to make positive feedback possible). However, you can also use a phot...

| Piezo ceramics are everywhere. Manufacturers have produced special ceramics optimised for different applications: one example is the thin di...

| What do capacitors, electret microphones and passive infrared sensors have to do with one another? It is often interesting to go back to fir...

| In previous articles in this series we have described an A/D converter based on a counter. A ‘real’ A/D converter, however, converts a volta...

| In the previous instalment we measured capacitances and resistances. You may have wondered if this was all worth the effort, when accurate a...

| So far in this series we have used the PC only with digital signals: switching, monitoring and counting. Now we turn to the analogue domain:...