Education Shield

Precautions



Disconnect programming cable and batteries when not in use. Since most Arduino

modules do not have on/off switches, they keep running as long as power is connected. So, you

may notice some circuit activity, even when the shield’s power switch is set to 0. If your

application is battery powered, make sure to disconnect the batteries when not in use.

 Supplying your Arduino with power from USB will result in lower voltages at the Vin

and 5V sockets. When more recent Arduino revisions draw power from the USB connection,

they supply Vin with less than 5 V due to diodes that make the supply source decisions for the

board. Vin typically receives 4.2 to 4.3 V, and the board will supply the 5V sockets with a few

hundredths of a volt less.

 The BOE Shield requires supply voltage from the Arduino’s Vin socket. Newer model

Arduino boards automatically route the supply input voltage to Vin. Some older models may

need to be configured for an external supply. Some modules with the Arduino form factor may

or may not be compatible. If in doubt, check your module’s Vin socket’s voltage with a power

supply connected.

 A servo connected to port 13 may twitch during startup. The Arduino blinks its onboard

LED connected to digital pin 13 after reset. Digital pin 13 also controls a servo if it’s connected

to port 13, so it may twitch in response to this on/off signal when the program restarts.

 Sockets on a new breadboard are very snug. Small pliers are recommended for inserting

wires to avoid bending them. If a socket resists a soft wire, such as a resistor lead, try plugging

in a firmer jumper wire a few times first, to break in the socket.

Dimensions