DEV-12887 datasheet(8/40 Pages) SPARKFUN

8 / 40 page

We recommend you read the About the imp section to learn what is in the

imp, what the Planner is, and a brief overview of the Squirrel language. Like

the imp card, the imp002 module contains an embedded ARM Cortex-M3

microprocessor, an onboard WiFi module, and antenna.

The Hardware: 12 Glorious I/Os

We have broken out 12 I/O pins from the imp002 module to standard 0.1"

headers. Much like the imp card, these pins can be used for a variety of

functions.

imp002 pin table from Imp's Pin Mux's Page

UART

UART UART UART UART I C I C SPI SPI DACADCPWM

AYes

BRX

Yes

ERX

CTS

SCL

SCLK Yes Yes Yes

2RTS

SDAMISO

Yes Yes

SCLK

Yes Yes Yes

6TX

7RX

MOSI

Yes Yes

SCL

MOSI

Yes Yes

SDA

MISO

Yes Yes

Powering the imp002 Breakout

The imp002 Breakout Board contains a 3.3V TPS62172 step-down

regulator (and the inductor/capacitors supporting it). This regulator allows

for input voltages anywhere between 3.3V and 17V (voltages in the upper

end of that range may produce some heat). It can support up to 500mA of

continuous current.

There are three power inputs on the board, all of which, are fed into the on-

board 3.3V regulator:

• “VIN” header - This standard 0.1" header feeds directly into the 3.3V

regulator.

• Battery input - These are the pins labeled “+” and “-” as well as the

JST connector, which mates with our LiPo batteries (or AA batteries).

• USB mini-B connector - This power input should feed a clean, 5V

source into the breakout board’s regulator. The USB voltage supply

can come from either a mini-B cable connected to your computer or a

USB wall adapter.

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