Conrad C-Control Pro Mega Series, Руководство пользователя

Страница: 175 / 240

166 Libraries
© 2008 Conrad Electronic
6.12.14 sqrt
Mathematical Functions
Syntax
float sqrt(float val);
Sub sqrt(val As Single) As Single
Description
The square root of a positive floating point number is calculated.
Parameter
val input value
Return Parameter
result
6.12.15 tan
Mathematical Functions
Syntax
float tan(float val);
Sub tan(val As Single) As Single
Description
The mathematical tangent is calculated.
Parameter
val input angle
expressed in radians
Return Parameter
tangent of the input value
6.13 OneWire
1-Wire or One-Wire is a serial interface that needs only one wire for signaling and power. The data is
transferred asynchronously (without clock signal) in groups of 64 bit. Data can either be sent or
received, but not at the same time (half-duplex).
The special about 1-Wire devices is the parasitically power supply, that is made over the signal wire: