pimcp3008 1.0.0

To use MCP3008 with pigpio.

# Installing

Stable library from PyPi:

• Just run pip install pimcp3008

# PiMcp3008’s Methods

## Constructor(config={})

‘config’ is dictionary type.

### ‘channel’

Configure SPI chip selects of Raspberry Pi.

• Channel.CE0.value

  • CE0 is used for MCP3008

  • Default

• Channel.CE1.value

  • CE1 is used for MCP3008

• Channel.CE2.value

  • CE2 is used for MCP3008

  • Only Auxiliary Mode

### ‘clock’

Configure SPI clock of Raspberry Pi.

• Integer value

  • Default: 1000000

### ‘device’

Configure MCP3008 compatible devices.

• Device.MCP3008.value

  • Use MCP3008

  • Default

• Device.MCP3004.value

  • Use MCP3004

## read(channels)

Read A/D convert value. Argument channels that enumerate integer value is valiable length. Return value has include selected channel’s value.

• MCP3008: 0 to 7

• MCP3004: 0 to 3

If argument channels is not exist, return value has include all channel’s value.

Return value is dictionary type. Key is channels value that type is int. Value is integer value.

# Sample

Run sudo pigpiod before running the sample.

## Simple

# -*- coding: utf-8 -*-
import pimpc3008 as MPC3008
import time

obj = MPC3008.PiMpc3008()

try:
    while True:
        values = obj.read()
        print(values)
        time.sleep(10)
except KeyboardInterrupt:
    pass

## Modify config

‘clock’ is 100kHz.

# -*- coding: utf-8 -*-
import pimpc3008 as MPC3008
import time

config = {
    'clock' : 100000
}

# pigpioを初期化する
obj = MPC3008.PiMpc3008(config)

try:
    while True:
        values = obj.read()
        print(values)
        time.sleep(10)
except KeyboardInterrupt:
    # Ctrl + C で終了する
    pass

## Select Channel

Get 0ch, 2ch and 4ch values.

# -*- coding: utf-8 -*-
import pimpc3008 as MPC3008
import time

obj = MPC3008.PiMpc3008()

try:
    while True:
        values = obj.read(0, 2, 4)
        print(values)
        time.sleep(10)
except KeyboardInterrupt:
    pass