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SegM8Pi

Raspberry Pi library for interaction with a chain of a particular SegM8 7-segment indicator modules.

Enable SPI Interface

If you haven’t enabled SPI support in your Raspbian Linux yet, open the terminal and run the following commands:

  1. Run sudo raspi-config.
  2. Use the down arrow to select 5 Interfacing Options.
  3. Arrow down to P4 SPI.
  4. Select <Yes> when it asks you to enable SPI.
  5. Press <Ok> when it tells you that SPI is enabled.
  6. Use the right arrow to select the <Finish> button.
  7. Reboot your Raspberry Pi to make the SPI interface appear.

After reboot, log in and enter the following command:

$ ls /dev/spi*

The Pi should respond with:

/dev/spidev0.0  /dev/spidev0.1

These represent SPI devices on chip enable pins 0 and 1, respectively. These pins are hardwired within the Pi.

Installation

Use pip to install the library:

pip3 install segm8

Quickstart example

import time
import segm8

# Create an object for working with the Segm8 module.
segm8_module = segm8.SegM8(0, 1)

# Display numbers from 0 to 9.
for number in range(10):
    segm8_module.display_int(number, 0, 1)
    time.sleep(1)

# Clear all segments of the module.
segm8_module.clear()
time.sleep(1)

message = "End"
# Display each letter in the message.
for letter in message:
    segm8_module.display_string(letter, 0, 1)
    time.sleep(1)

See full API reference in API.md

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Raspberry Pi library for interaction with a chain of a particular SegM8 7-segment indicator modules.

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