Arduino Motor Shield
I have been working with the Arduino Motor Shield. Here are some of the basic specs for the shield: Operating Voltage – 5v to 12v Motor Controller – L298P, Drives 2 DC Motors or 1 Stepper motor Max Current – 2A per channel or 4A max (with external power supply) Current Sensing – 1.65V/A Free Running ...
Intro to TSL2561
The TSL2561 is a full spectrum light sensor. I uses 3 light sensors to achieve this. I am using Lady Ada’s guide and library. In Lady Ada’s example, she uses a regular arduino, where the I2C Data and CLk are pins are pins 4 and 5. I was using a mega which its Data and ...
Working with Rotary Encoders
A rotary encoder is a digital rotary sensor. It has the capability of rotating 360 degrees and can tell you direction. This tutorial is based on Paul Stoffregen’s Encoder library and explanations. Inside of a rotary encoder are 2 contacts that are read by the arduino and the center contact grounds the encoder. The rotary ...
ChronoDot and Arduino 1.0
Recently I updated LadyAda’s RTC Library for Arduino 1.0 and older versions. In arduino 1.0 the wire library changed. It is now wire.read and wire.write. I also found that when you do use the write(0), Arduino would interpret the 0 as an integer. The new wire library does not. Because of this I had to ...
Sparkfun OpAmp Breakout LMV358
The LMV358/LMV324 are low voltage (2.7–5.5V) versions of the dual and quad op amps, LM358/LMV324, which currently operate at 5–30V. If you need to use a piezo as an analog sensor into the arduino, this is the chip and breakout board to use. Most OpAmp chips operate by looking at 2 voltages and amplifying the ...