05-01 LEDBrightness
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This program uses an analog input to control the brightness of an LED through a DAC output. | This program uses an analog input to control the brightness of an LED through a DAC output. | ||
| + | The signals used for this example are listed below: | ||
| + | {| border="1" cellpadding="5" cellspacing="2" align="center" style="text-align: center;" | ||
| + | |+ align="bottom"|'''Signals Used and Connector Locations for Example 05-01''' | ||
| + | |'''Signal''' | ||
| + | |'''LPC4330 PIN NAME''' | ||
| + | |'''BAM210E''' | ||
| + | |'''BAM210''' | ||
| + | |'''BAM200E''' | ||
| + | |'''BAM200''' | ||
| + | |'''Used for''' | ||
| + | |- | ||
| + | |A0 | ||
| + | |P7_4 | ||
| + | |J8-1 | ||
| + | |J8-1 | ||
| + | |S4-3 | ||
| + | |S4-3 | ||
| + | |Potentiometer | ||
| + | |- | ||
| + | |DAC0 | ||
| + | |P4_4 | ||
| + | |J8-6 | ||
| + | |J8-6 | ||
| + | |S3-5 | ||
| + | |S3-5 | ||
| + | |LED | ||
| + | |- | ||
| + | |} | ||
| + | |||
| + | The following schematic can be used to build the circuit with a BAM210E or BAM210. | ||
| + | [[Image:BAM210_05_01_SCH.png|center|alt=BAM210|frame|<div align="center">'''Schematic for example 05-01''']] | ||
| + | |||
| + | <div style="text-align: left;"> | ||
/*Program Example 5.1: Uses analog input to control LED brightness, through DAC output | /*Program Example 5.1: Uses analog input to control LED brightness, through DAC output | ||
*/ | */ | ||
| Line 13: | Line 46: | ||
} | } | ||
| + | The following image shows the built circuit on a BAM210E. | ||
[[Image:BAM210_LEDBrightness.jpeg|center|]] | [[Image:BAM210_LEDBrightness.jpeg|center|]] | ||
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Current revision as of 19:24, 17 September 2014
This program uses an analog input to control the brightness of an LED through a DAC output.
The signals used for this example are listed below:
| Signal | LPC4330 PIN NAME | BAM210E | BAM210 | BAM200E | BAM200 | Used for |
| A0 | P7_4 | J8-1 | J8-1 | S4-3 | S4-3 | Potentiometer |
| DAC0 | P4_4 | J8-6 | J8-6 | S3-5 | S3-5 | LED |
The following schematic can be used to build the circuit with a BAM210E or BAM210.
Schematic for example 05-01
/*Program Example 5.1: Uses analog input to control LED brightness, through DAC output
*/
#include "mbed.h"
AnalogOut Aout(DAC0); //defines analog output on Pin DAC0
AnalogIn Ain(A0); //defines analog input on Pin A0
int main() {
while(1) {
Aout=Ain; //transfer analog in value to analog out, both are type float
}
}
The following image shows the built circuit on a BAM210E.
