Introduction

Documentation Status Discord Build Status

CircuitPython module for use with the Adafruit ATSAMD09 seesaw.

Dependencies

This driver depends on:

Please ensure all dependencies are available on the CircuitPython filesystem. This is easily achieved by downloading the Adafruit library and driver bundle.

Usage Example

See examples/seesaw_simpletest.py for usage example.

Contributing

Contributions are welcome! Please read our Code of Conduct before contributing to help this project stay welcoming.

Building locally

To build this library locally you’ll need to install the circuitpython-build-tools package.

python3 -m venv .env
source .env/bin/activate
pip install circuitpython-build-tools

Once installed, make sure you are in the virtual environment:

source .env/bin/activate

Then run the build:

circuitpython-build-bundles --filename_prefix adafruit-circuitpython-seesaw --library_location .

Sphinx documentation

Sphinx is used to build the documentation based on rST files and comments in the code. First, install dependencies (feel free to reuse the virtual environment from above):

python3 -m venv .env
source .env/bin/activate
pip install Sphinx sphinx-rtd-theme

Now, once you have the virtual environment activated:

cd docs
sphinx-build -E -W -b html . _build/html

This will output the documentation to docs/_build/html. Open the index.html in your browser to view them. It will also (due to -W) error out on any warning like Travis will. This is a good way to locally verify it will pass.

Table of Contents

Simple test

Ensure your device works with this simple test.

examples/seesaw_simpletest.py
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
# Simple seesaw test using an LED attached to Pin 15.
#
# See the seesaw Learn Guide for wiring details:
# https://learn.adafruit.com/adafruit-seesaw-atsamd09-breakout?view=all#circuitpython-wiring-and-test
import time

from board import SCL, SDA
import busio
from adafruit_seesaw.seesaw import Seesaw

i2c_bus = busio.I2C(SCL, SDA)

ss = Seesaw(i2c_bus)

ss.pin_mode(15, ss.OUTPUT)

while True:
    ss.digital_write(15, True)   # turn the LED on (True is the voltage level)
    time.sleep(1)                # wait for a second
    ss.digital_write(15, False)  # turn the LED off by making the voltage LOW
    time.sleep(1)

seesaw

An I2C to whatever helper chip.

  • Author(s): Dean Miller

Implementation Notes

Hardware:

Software and Dependencies:

class adafruit_seesaw.seesaw.Seesaw(i2c_bus, addr=73, drdy=None)[source]

Driver for Seesaw i2c generic conversion trip

Parameters:
  • i2c_bus (I2C) – Bus the SeeSaw is connected to
  • addr (int) – I2C address of the SeeSaw device
sw_reset()[source]

Trigger a software reset of the SeeSaw chip

Indices and tables