Hardware Reference
In-Depth Information
Arduino Esplora
The Arduino Esplora is a strange device. Where most Arduinos are designed
to sit on a table or be placed under fabric, the Esplora is designed to be held
in your hand. Based on an ATmega32u4, it is not shield compatible and does
not have any solder points for inputs and outputs. Instead, it looks and feels
like a game pad; it has thumb inputs in the form of four digital switches, one
analog joystick, and a linear potentiometer. For more feedback, the Esplora has
a buzzer and an RGB LED. It also features more advanced devices; it has an
on-board microphone, a temperature sensor, a connector for an LCD screen,
and a three-axis accelerometer.
The Esplora has 32 KB of l ash; 4 KB are used by the bootloader. It has 2.5 KB
of SRAM, and 1 KB of EEPROM. It is a capable device, and it makes up for its
lack of connectors with four TinkerKit connectors: two inputs and two outputs,
as shown in Figure 1-13.
Figure 1-13: The Arduino Esplora
Arduino Yún
The Arduino Yún is based on an ATmega32u4, but it also has an Atheros AR9331
on the same board. The Atheros processor has a complete Linux distribution,
based on OpenWRT, famous for Linux-based wireless routers.
The Arduino Yún has built-in Ethernet and WiFi, and also has a micro-SD slot.
The Yún is different from other Arduinos and shields in that it has advanced
network functionality; the Arduino can send commands to OpenWRT and
 
Search WWH ::




Custom Search