# Programming with MicroPython: GPIO

### Import FutureBoard Library

Import the Library to make use of its functions.

```
from future import *
```

### 05: GPIO

#### 1. Initiate Pin Mode

```
MeowPin(pin,mode)
```

Initiates the GPIO with a mode, use P1\~P16 for parameter pin.

Possible values for parameter mode:

1. Digital Input: ‘IN’
2. Digital Output: ‘OUT’
3. Analog Input: ‘ANALOG’
4. Analog Output: ‘PWM’

#### 2. Read a Digital Value

```
getDigital() 
```

#### Sample Program

```
from future import *
# Digital Read Pins=['P0','P1','P2','P3','P8','P9','P12','P13','P14','P15','P16']
p0 = MeowPin('P0','IN')
print(p0.getDigital())
```

#### 3. Write a Digital Value

```
setDigital(val)
```

#### Sample Program

```
from future import *
import time
# Digital Write Pins=['P0','P1','P2','P6','P7','P8','P10','P13','P3','P9','P14','P15','P16']
p0 = MeowPin('P0','OUT')
while 1:
    p0.setDigital(1)
    time.sleep(1)
    p0.setDigital(0)
    time.sleep(1)
```

#### 4. Read an Analog Value

```
getAnalog(width)
```

FutureBoard has a 12-bit ADC, use 10 for 10-bit values and 12 for 12-bit values, default is 12.

#### Sample Program

```
from future import *
# Analog Read Pins=['P0','P1','P4','P12', 'P3', 'P14', 'P15', 'P16']

p0 = MeowPin('P0','ANALOG')
print(p0.getAnalog())
print(p0.getAnalog(width=10))
```

#### 5. Write an Analog Value

```
setAnalog(val)
```

#### Sample Program

```
from future import *
import time
# Analog Write Pins=['P0','P1','P2','P3','P8','P13','P14','P15','P16']

p0 = MeowPin('P0','PWM')
while 1:
    for i in range(1023): 
        p0.setAnalog(i)
        time.sleep_ms(1)
    for i in range(1023,0,-1): 
        p0.setAnalog(i)
        time.sleep_ms(1)
```