AVR-ADClib

Just something I quickly wrote to make the use of ADCs as simply and quickly as possible without compromising any features.
There are no delays or anything used - only busy flags.
This library has been tested on the ATmega 328p and ATtiny 85.
To use this library on the ATtiny platform use flag __ADC_TINY.

Usage:

1. SLOW
   Initialize the ADC with ADC_Init(ClockPrescaler, VoltageRefference).
   Use the analogRead(pin) function to quickly get the analog value.

2. FAST
   Initialize the ADC with ADC_Init(ClockPrescaler, VoltageRefference).
   Start the conversion with ADC_ConversionStart(pin).
   Check the state of the conversion with ADC_ConversionFinished().
   Get the final value with ADC_Result().

I have also included many useful Macros:

For Input selection

AtMega:
A0 0  inputs just like when using arduino
A1 1
A2 2
A3 3
A4 4
A5 5
A6 6
A7 7
__ADC_SRC_TEMP 8  buil-in temperature sensor
__ADC_SRC_1V1 14  built-in band-gap refference generator
__ADC_SRC_GND 15  just ground connection

AtTiny:
A0 0  inputs just like when using arduino
A1 1
A2 2
A3 3
__ADC_SRC_DIF_2_2_1x 4
__ADC_SRC_DIF_2_2_20x 5
__ADC_SRC_DIF_2_3_1x 6
__ADC_SRC_DIF_2_3_20x 7
__ADC_SRC_DIF_0_0_1x 8
__ADC_SRC_DIF_0_0_20x 9
__ADC_SRC_DIF_0_1_1x 10
__ADC_SRC_DIF_0_1_20x 11
__ADC_SRC_TEMP 15
__ADC_SRC_1V1 12
__ADC_SRC_GND 13

For Clock Prescalers

__ADC_PRES_2 0
__ADC_PRES_4 2
__ADC_PRES_8 3
__ADC_PRES_16 4
__ADC_PRES_32 5
__ADC_PRES_64 6
__ADC_PRES_128 7

For Voltage Refference selection

AtMega:
__ADC_REF_EXT 0
__ADC_REF_VCC 1
__ADC_REF_1V1 3

AtTiny:
__ADC_REF_EXT 1
__ADC_REF_VCC 0
__ADC_REF_1V1 2
__ADC_REF_2V56 6
__ADC_REF_2V56_CAP 7