[Ham-Computers] Reading A/D Converters

[Loren Moline WA7SKT]

Thanks Joe!

Loren Moline  WA7SKT

Member: Pacific Northwest VHF Society and ARRL
Member: Hearsat Satellite Monitoring Group.  www.uhf-satcom.com
Grid: CN86bx


> Date: Thu, 11 Jul 2013 18:21:21 -0500
> From: k9hde at comcast.net
> To: ham-computers at mailman.qth.net
> Subject: [Ham-Computers] Reading A/D Converters
> 
> <start>
> Loren wrote:
> 
> I would like a way to read 2 analog voltages and scale the readings to my own engineering units. Just simple read, scale, and display whether using a PIC or some other board.
> 
> I would like to be able to write programs or use programs to do this.
> 
> Any ideas?
> 
> Loren Moline  WA7SKT
> 
> <end>
> 
> The Arduino provides libraries which contain functions to write to LCD displays and to read voltages.
> 
> The Arduino "analog read" web page shows the Arduino A/D functionality.
> 
>   http://arduino.cc/en/Reference/analogRead  
> 
> Excerpt:
> 
> analogRead()
> 
> Description
> 
> Reads the value from the specified analog pin. The Arduino board contains a 6 channel (8 channels on the Mini and Nano, 16 on the Mega), 10-bit analog to digital converter. This means that it will map input voltages between 0 and 5 volts into integer values between 0 and 1023. This yields a resolution between readings of: 5 volts / 1024 units or, .0049 volts (4.9 mV) per unit. The input range and resolution can be changed using analogReference().
> 
> It takes about 100 microseconds (0.0001 s) to read an analog input, so the maximum reading rate is about 10,000 times a second.
> 
> zzzz
> 
> 
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