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LDmicro Forum - adc

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adc (by robi)
are its posable to read 24 bit adc by software in ldmicro. please help
Thu Jul 6 2017, 09:32:56
(no subject) (by Ihor Nehrutsa)
at page

https://www.microchip.com/ParamChartSearch/Chart.aspx?branchID=1012

Max A/D Resolution is 16 bits


Maybe you meant an external ADC converter?
Fri Jul 7 2017, 09:51:40
(no subject) (by robi)
Yes i means external adc.
Fri Jul 7 2017, 11:44:15
(no subject) (by MGP)
No, you cannot because 24bit = 16777215 decimal and the max integer in LDmicro is 32767.
And further, 24bits adc can only be used by specialists in hardware with sensitive measuring device.
Sat Jul 8 2017, 03:51:58
(no subject) (by robi)
as max integer 32767 can we use 16 bit adc. ???. please post one example
Sat Jul 8 2017, 04:23:45
(no subject) (by MGP)
No, 32767 is 15bit, bit 16 is used as + or - sign.

Most of the adc chips are I2C or SPI and ldmicro does not support this interface.

What's wrong with the build-in 10 bit adc because I suspect you do not really know what you really want, given the questions you ask.
Do you have a schematic?
Sat Jul 8 2017, 05:52:05
(no subject) (by robi)
dear mpg
i want to try for load cell reading by ldmicro. i want to make scale for 100 kg .that resolation 1 kg.
Sun Jul 9 2017, 11:55:45
(no subject) (by robi)
sorry for 1000 kg
Sun Jul 9 2017, 11:56:53
(no subject) (by MGP)
With 10bits you have 1023 dec, so 1023 (0 to 5V) = 1000kg

The resolution is 1000/1023 = 0.97 or 1kg this is what you ask.

Look here for inspiration: http://cq.cx/interface.pl
Sun Jul 9 2017, 12:55:14
(no subject) (by robi)
thanks i will try this .
Sun Jul 9 2017, 20:43:16
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