G'day all! I have an Arduino Duemilanove hanging around spare at the moment and thought I might try a few audio interfacing projects. I'm just wondering what sort of sampling freq …

Hi How can I implement (or maybe there is an IC that already does that) a board whose input would be I2C and output would be analog voltage (0V - 5V) ? Eventually I would like to …

I'm designing an altimeter based on a pic microcontroller and a freescale pressure sensor. I'd like to output the altitude from the pic using an analog gauge. I found some useful …

Does anyone have a circuit that will trigger a strobe light to flash in response to a TTL logic signal? Specifically, if I have a strobe circuit capable of flashing 1000 times per …

Is it possible to have two antennas connected to the antenna port of an RF transceiver through some sort of mux? I want to be able to switch to a different antenna if the signal is …

I've had a number of issues getting good stable analog readings from an RTD temperature sensor. Typically the sensor/circuit/software works fine at my desk then when it is installe …

How do you make / connect an Analogue gauge with Arduino?

My college undergraduate electronics classes covered some analog design, and I'd like to further my knowledge and experience. What would be a good project that would require signif …

The answer to this question is probably staring me in the face, but I just can't see it. I'm attempting to interface with an LM335AZ temperature sensor (datasheet) at 3.3V. The d …

I've noticed that in analog signal acquisition hardware you see two paradigms: AC-coupled and DC-coupled. Typically AC-coupled hardware is less expensive, and basically has a 20 H …

Hello, I have an old CD-burner (HP 9100 plus) where I would like to control the BLDC motor from. My idea is to use the original IC of the burner as the driver and use an ATtiny13 …