If you're interested in adding more analogue-to-digital ports to your Arduino board but don't want to pay extra for a Mega - or would like a true digital-to-analogue converter, check out John's latest tutorial about the NXP PCF8591. It's a convenient part that has four 8-bit ADCs, a single 8-bit DAC and can also operate as a differential ADC if so required. All the required Arduino sketches are provided and explained, having you up and running in no time.
For more information, visit the tutorial page. And for more, we're on twitter and Google+, so follow us for news and product updates as well.
Fitting the PCF8591 to a protoshield would make an interesting addition - and when adding external circuitry to your next Arduino project, you'll need a protoshield to mount the external circuitry. In doing so, consider our range of ProtoShields. From the tiny LeoStick to the Mega range, we offer a complete range for you to work with.
