The chipKIT Lenny is designed to be as close to the Arduino Leonardo as physically possible. The choice of microcontroller, the PIC32MX270F256D with advanced Peripheral Pin Select, means GPIO pin functions can be mapped to match those of common Arduino boards. By default that mapping is configured to be equivalent to the Arduino Leonardo.
Designed with the chipKIT Lenny in mind, yet still able to work on any Uno footprint board, the QuickIO shield is the perfect way to quickly test something out. Providing 4 buttons, two potentiometers and 8 LEDs you can quickly make a simple user interface for experimenting. No need to mess around with wires and breadboards just to add a knob, or a couple of buttons, or an LED or two. Just plug in this shield and away you go.
When you want to make really precise readings of incredibly small voltages, or you are looking at tiny differences between voltages, you need something a little more sensitive and precise than the normal run-of-the-mill Analog to Digital Converter (ADC) that you find in most microcontrollers.
This shield gives you just what you need. Based around the MCP3428 it is able to sense voltages as tiny as 7.8125μV. The true differential inputs can sense these minuscule voltage differences at any point in your circuit. Ideal for working with wheatstone bridges for collecting the signals from extremely sensetive devices such as strain gauges or precision temperature sensors.
The DualBEC, or Dual UBEC, is a high efficiency dual power supply board for battery based projects.
Providing up to 1A each of +5V and +3.3V using very high efficiency switching voltage regulators (up to 92% efficient) this power supply board will get the most life possible out of your two-cell Lithium Ion and Lithium Polymer batteries.
The TC105 voltage regulators from Microchip switch to a special low-power mode (PFM) when small currents are being drawn (such as when your MCU is sleeping) to increase the efficiency and prolong battery life.
The maximum input voltage of 10V allows you to use a variety of power sources, such as LiPo batteyr packs (e.g., 7.4V), 9V PP3 batteries, packs of 6 AA Ni-MH cells, etc.
Running out of GPIO ports on your Arduino? Need something a little more flexible than shift registers? Then this board is for you.
Based around the popular and well-supported MCP23S17 16-port SPI IO Expander, this board sports a respectable 32 GPIO ports each with full support for everything you'd expect from a built-in GPIO.
Each individual port can be an input or an output, with built-in pullups on inputs. Each pin can as well trigger an external interrupt with either one interrupt per 8-bit port or both 8-bit ports shared on the same interrupt.