UndocumentedFeatures

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Stacking From bottom to top order: 1*Step-Down Power Supply + 1*Master + 8*Brick + 2*Extension: Max. 36 Bricklets can be used at once. (http://www.tinkerunity.org/forum/index.php/topic,631.msg3793.html#msg3793 http://www.tinkerunity.org/forum/index.php/topic,1272.msg7827.html#msg7827) A 2nd or more master bricks can be stacked but works like an ordinary brick. Only the 1st one is used in communication.

In a stack 20 electrical lines are used for external powering: 10x Gnd + 10x Vcc, each specified upto 500mA (http://www.tinkerunity.org/forum/index.php/topic,1268.msg7803.html#msg7803)

Powering Beside the step-down-power supply a stack can be powered at USB-connector by an external accu/battery-pack from 4.8-5.7V (http://www.tinkerunity.org/forum/index.php/topic,1220.msg7460.html#msg7460)

Use the API-call GetUSBVoltage (http://www.tinkerforge.com/doc/Software/Bricks/Master_Brick_CSharp.html#BrickMaster::GetUSBVoltage) from Master to get external usb voltage: Tolerance 2-5% (http://www.tinkerunity.org/forum/index.php/topic,881.msg5961.html#msg5961)

Step-Down Power supply: Maximum Output Current @ 5V output: 3A

Brick and bricklets: each bricklet port has 4 universal IO pinne (http://www.tinkerunity.org/forum/index.php/topic,593.msg4020.html#msg4020 http://www.tinkerunity.org/forum/index.php/topic,929.msg6425.html#msg6425)

Plugins (http://www.tinkerunity.org/forum/index.php/topic,707.msg4511.html#msg4511 http://www.tinkerunity.org/forum/index.php/topic,938.msg6541.html#msg6541)

Response time: http://www.tinkerunity.org/forum/index.php/topic,37.msg157.html#msg157

Influence of bricklet results by the cable length: In case of analogue values the length of the bricklet cable can decrease the internal voltage. (http://www.tinkerunity.org/forum/index.php/topic,963.msg6804.html#msg6804)

ESD: http://www.tinkerunity.org/forum/index.php/topic,902.msg6156.html#msg6156

Expected or estimated max.range of WIFI-Ext.: >500m outdoors (http://www.tinkerunity.org/forum/index.php/topic,1198.msg7304.html#msg7304)

Switch rate of DualRelay: 360 ops/hour (http://www.tinkerunity.org/forum/index.php/topic,1195.msg7241.html#msg7241)