Difference between revisions of "STM32F107VC/Using ADC"
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==LDR - Light Dependent Resistor== | ==LDR - Light Dependent Resistor== | ||
| − | *[http://www.cypax.com/pdf/PGM5526x.pdf LDR Datasheet] (Loads PDF) | + | *[http://www.cypax.com/pdf/PGM5526x.pdf PGM5526 LDR Datasheet] (Loads PDF) |
The LDR is connected between [[STM32F107VC/GPIO|GPIO]] port C bit 0 and GND. A 10K pull-up resistor to 3.3V also connected to [[STM32F107VC/GPIO|GPIO]] port C bit 0 | The LDR is connected between [[STM32F107VC/GPIO|GPIO]] port C bit 0 and GND. A 10K pull-up resistor to 3.3V also connected to [[STM32F107VC/GPIO|GPIO]] port C bit 0 | ||
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==Sample output from COM port== | ==Sample output from COM port== | ||
Baudrate: 9600 | Baudrate: 9600 | ||
Revision as of 07:31, 18 November 2013
Contents
Literature
Software example
- ad2.zip (Example using RTX task triggering ADC conversion 100 times a second)
- ad2timer.zip (Same example as above. Just using timer 2 to trig ADC conversion 100 times a second)
LDR - Light Dependent Resistor
- PGM5526 LDR Datasheet (Loads PDF)
The LDR is connected between GPIO port C bit 0 and GND. A 10K pull-up resistor to 3.3V also connected to GPIO port C bit 0
Sample output from COM port
Baudrate: 9600
POT = 3.292V| LDR = 0.80V | DEG = 26.7C| Vrefint = 1.2075V
POT = 3.292V| LDR = 0.80V | DEG = 26.6C| Vrefint = 1.2076V
POT = 3.292V| LDR = 0.80V | DEG = 26.8C| Vrefint = 1.2071V
POT = 3.294V| LDR = 0.80V | DEG = 26.6C| Vrefint = 1.2075V
POT = 3.293V| LDR = 0.80V | DEG = 26.6C| Vrefint = 1.2074V