https://github.com/sparkfun/qwiic_cap1203_py
https://github.com/sparkfun/qwiic_cap1203_py
circuitpython micropython python sparkfun sparkfun-python
Last synced: 3 months ago
JSON representation
- Host: GitHub
- URL: https://github.com/sparkfun/qwiic_cap1203_py
- Owner: sparkfun
- License: mit
- Created: 2023-12-13T21:08:42.000Z (about 2 years ago)
- Default Branch: master
- Last Pushed: 2025-02-26T21:59:30.000Z (11 months ago)
- Last Synced: 2025-02-26T22:31:38.851Z (11 months ago)
- Topics: circuitpython, micropython, python, sparkfun, sparkfun-python
- Language: Python
- Homepage: http://docs.sparkfun.com/qwiic_cap1203_py/
- Size: 6.12 MB
- Stars: 1
- Watchers: 7
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# SparkFun Qwiic CAP1203 - Python Package
[](https://docs.sparkfun.com/qwiic_cap1203_py/classqwiic__cap1203_1_1_qwiic_c_a_p1203.html)
The SparkFun Qwiic CAP1203 Capacitive Touch Slier provides a simple and cost effective solution for adding three-input or slider touch input to your project. Implementing a SparkFun Qwiic I2C interface, these sensors can be rapidly added to any project with boards that are part of the SparkFun Qwiic ecosystem.
This repository implements a Python package for the SparkFun Qwiic CAP1203. This package works with Python, MicroPython and CircuitPython.
### Contents
* [About](#about-the-package)
* [Installation](#installation)
* [Supported Platforms](#supported-platforms)
* [Documentation](https://docs.sparkfun.com/qwiic_cap1203_py/classqwiic__cap1203_1_1_qwiic_c_a_p1203.html)
* [Examples](#example-use)
## About the Package
This python package enables the user to access the features of the CAP1203 via a single Qwiic cable. This includes reading the three touch inputs, detecting swipes, setting sensitivity and more. The capabilities of the CAP1203 are each demonstrated in the included examples.
New to qwiic? Take a look at the entire [SparkFun qwiic ecosystem](https://www.sparkfun.com/qwiic).
### Supported SparkFun Products
This Python package supports the following SparkFun qwiic products on Python, MicroPython and Circuit python.
* [SparkFun Capacitive Touch Slider - CAP1203](https://www.sparkfun.com/sparkfun-capacitive-touch-slider-cap1203-qwiic.html)
### Supported Platforms
| Python | Platform | Boards |
|--|--|--|
| Python | Linux | [Raspberry Pi](https://www.sparkfun.com/raspberry-pi-5-8gb.html) , [NVIDIA Jetson Orin Nano](https://www.sparkfun.com/nvidia-jetson-orin-nano-developer-kit.html) via the [SparkFun Qwiic SHIM](https://www.sparkfun.com/sparkfun-qwiic-shim-for-raspberry-pi.html) |
| MicroPython | Raspberry Pi - RP2, ESP32 | [SparkFun Pro Micro RP2350](https://www.sparkfun.com/sparkfun-pro-micro-rp2350.html), [SparkFun IoT RedBoard ESP32](https://www.sparkfun.com/sparkfun-iot-redboard-esp32-development-board.html), [SparkFun IoT RedBoard RP2350](https://www.sparkfun.com/sparkfun-iot-redboard-rp2350.html)
|CircuitPython | Raspberry Pi - RP2, ESP32 | [SparkFun Pro Micro RP2350](https://www.sparkfun.com/sparkfun-pro-micro-rp2350.html), [SparkFun IoT RedBoard ESP32](https://www.sparkfun.com/sparkfun-iot-redboard-esp32-development-board.html), [SparkFun IoT RedBoard RP2350](https://www.sparkfun.com/sparkfun-iot-redboard-rp2350.html)
> [!NOTE]
> The listed supported platforms and boards are the primary platform targets tested. It is fully expected that this package will work across a wide variety of Python enabled systems.
## Installation
The first step to using this package is installing it on your system. The install method depends on the python platform. The following sections outline installation on Python, MicroPython and CircuitPython.
### Python
The package is primarily installed using the `pip` command, downloading the package from the Python Index - "PyPi". Note - the below instructions outline installation an Linux-based (Raspberry Pi) system.
#### PyPi Installation
First, setup a virtual environment from a specific directory using venv:
```sh
python3 -m venv path/to/venv
```
You can pass any path as path/to/venv, just make sure you use the same one for all future steps. For more information on venv [click here](https://docs.python.org/3/library/venv.html).
Next, install the qwiic package with:
```sh
path/to/venv/bin/pip3 install sparkfun-qwiic-cap1203
```
Now you should be able to run any example or custom python scripts that have `import qwiic_cap1203` by running e.g.:
```sh
path/to/venv/bin/python3 example_script.py
```
### MicroPython Installation
If not already installed, follow the [instructions here](https://docs.micropython.org/en/latest/reference/mpremote.html) to install mpremote on your computer.
Connect a device with MicroPython installed to your computer and then install the package directly to your device with mpremote mip.
```sh
mpremote mip install github:sparkfun/qwiic_cap1203_py
```
If you would also like to install the examples for this repository, issue the following mip command as well:
```sh
mpremote mip install --target "" github:sparkfun/qwiic_cap1203_py@examples
```
### CircuitPython Installation
If not already installed, follow the [instructions here](https://docs.circuitpython.org/projects/circup/en/latest/#installation) to install CircUp on your computer.
Ensure that you have the latest version of the SparkFun Qwiic CircuitPython bundle.
```sh
circup bundle-add sparkfun/Qwiic_Py
```
Finally, connect a device with CircuitPython installed to your computer and then install the package directly to your device with circup.
```sh
circup install --py qwiic_cap1203
```
If you would like to install any of the examples from this repository, issue the corresponding circup command from below. (NOTE: The below syntax assumes you are using CircUP on Windows. Linux and Mac will have different path seperators (i.e. "/" vs. "\"). See the [CircUp "example" command documentation](https://learn.adafruit.com/keep-your-circuitpython-libraries-on-devices-up-to-date-with-circup/example-command) for more information)
```sh
circup example qwiic_cap1203\qwiic_cap1203_ex1_basic_readings
circup example qwiic_cap1203\qwiic_cap1203_ex2_detect_any_touch
circup example qwiic_cap1203\qwiic_cap1203_ex3_detect_swipe
circup example qwiic_cap1203\qwiic_cap1203_ex4_power_button
circup example qwiic_cap1203\qwiic_cap1203_ex5_detect_current_touch
circup example qwiic_cap1203\qwiic_cap1203_ex6_disable_interrupt
circup example qwiic_cap1203\qwiic_cap1203_ex7_set_sensitivity.py
```
Example Use
---------------
Below is a quickstart program to print humidity, pressure, altitude, and temperature read from the CAP1203.
See the examples directory for more detailed use examples and [examples/README.md](https://github.com/sparkfun/qwiic_cap1203_py/blob/master/examples/README.md) for a summary of the available examples.
```python
import qwiic_cap1203
import sys
def runExample():
print("\nQwiic CAP1203 Example 1 - Basic Readings\n")
# Create instance of device
myDevice = qwiic_cap1203.QwiicCAP1203()
# Check if it's connected
if myDevice.is_connected() == False:
print("The device isn't connected to the system. Please check your connection", \
file=sys.stderr)
return
# Initialize the device
myDevice.begin()
while True:
if myDevice.is_left_touched():
print("Left")
if myDevice.is_middle_touched():
print("Middle")
if myDevice.is_right_touched():
print("Right")
if __name__ == '__main__':
try:
runExample()
except (KeyboardInterrupt, SystemExit) as exErr:
print("\nEnding Example")
sys.exit(0)
```
