The SparkFun Qwiic Triad Spectral Sensing AS7265X Module provides a simple and cost effective solution for adding Triad Spectral Sensing capabilities 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 AS7265X. This package works with Python, MicroPython and CircuitPython.
This python package enables the user to access the features of the AS7265X via a single Qwiic cable. This includes extracting UV readings, extracting IR readings, toggling LEDs and more. The capabilities of the AS7265X are each demonstrated in the included examples.
New to qwiic? Take a look at the entire SparkFun qwiic ecosystem.
This Python package supports the following SparkFun qwiic products on Python, MicroPython and Circuit python.
| Python | Platform | Boards |
|---|---|---|
| Python | Linux | Raspberry Pi , NVIDIA Jetson Orin Nano via the SparkFun Qwiic SHIM |
| MicroPython | Raspberry Pi - RP2, ESP32 | SparkFun Pro Micro RP2350, SparkFun IoT RedBoard ESP32, SparkFun IoT RedBoard RP2350 |
| CircuitPython | Raspberry Pi - RP2, ESP32 | SparkFun Pro Micro RP2350, SparkFun IoT RedBoard ESP32, SparkFun IoT RedBoard RP2350 |
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.
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.
The package is primarily installed using the pip3 command, downloading the package from the Python Index - "PyPi".
Note - the below instructions outline installation on a Linux-based (Raspberry Pi) system.
First, setup a virtual environment from a specific directory using venv:
python3 -m venv path/to/venvYou 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.
Next, install the qwiic package with:
path/to/venv/bin/pip3 install sparkfun-qwiic-as7265xNow you should be able to run any example or custom python scripts that have import qwiic_as7265x by running e.g.:
path/to/venv/bin/python3 example_script.pyIf not already installed, follow the instructions here 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.
mpremote mip install github:sparkfun/qwiic_as7265x_pyIf you would also like to install the examples for this repository, issue the following mip command as well:
mpremote mip install --target "" github:sparkfun/qwiic_as7265x_py@examplesIf not already installed, follow the instructions here to install CircUp on your computer.
Ensure that you have the latest version of the SparkFun Qwiic CircuitPython bundle.
circup bundle-add sparkfun/Qwiic_PyFinally, connect a device with CircuitPython installed to your computer and then install the package directly to your device with circup.
circup install --py qwiic_as7265xIf 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. See the CircUp "example" command documentation for more information)
circup example qwiic_as7265x\qwiic_as7265x_ex1_basic
circup example qwiic_as7265x\qwiic_as7265x_ex2_leds
circup example qwiic_as7265x\qwiic_as7265x_ex3_settings
circup example qwiic_as7265x\qwiic_as7265x_ex4_read_raw
circup example qwiic_as7265x\qwiic_as7265x_ex5_max_read_rate
circup example qwiic_as7265x\qwiic_as7265x_ex6_read_temp
circup example qwiic_as7265x\qwiic_as7265x_ex7_get_versionBelow is a quickstart program to print readings from the AS7265X.
See the examples directory for more detailed use examples and examples/README.md for a summary of the available examples.
import qwiic_as7265x
import sys
def runExample():
print("\nQwiic Spectral Triad Example 1 - Basic\n")
myAS7265x = qwiic_as7265x.QwiicAS7265x()
if myAS7265x.is_connected() == False:
print("The device isn't connected to the system. Please check your connection", \
file=sys.stderr)
return
if myAS7265x.begin() == False:
print("Unable to initialize the AS7265x. Please check your connection", file = sys.stderr)
return
print("A,B,C,D,E,F,G,H,R,I,S,J,T,U,V,W,K,L")
while True:
myAS7265x.take_measurements()
print(str(myAS7265x.get_calibrated_a()) + ",", end="") # 410nm
print(str(myAS7265x.get_calibrated_b()) + ",", end="") # 435nm
print(str(myAS7265x.get_calibrated_c()) + ",", end="") # 460nm
print(str(myAS7265x.get_calibrated_d()) + ",", end="") # 485nm
print(str(myAS7265x.get_calibrated_e()) + ",", end="") # 510nm
print(str(myAS7265x.get_calibrated_f()) + ",", end="") # 535nm
print(str(myAS7265x.get_calibrated_g()) + ",", end="") # 560nm
print(str(myAS7265x.get_calibrated_h()) + ",", end="") # 585nm
print(str(myAS7265x.get_calibrated_r()) + ",", end="") # 610nm
print(str(myAS7265x.get_calibrated_i()) + ",", end="") # 645nm
print(str(myAS7265x.get_calibrated_s()) + ",", end="") # 680nm
print(str(myAS7265x.get_calibrated_j()) + ",", end="") # 705nm
print(str(myAS7265x.get_calibrated_t()) + ",", end="") # 730nm
print(str(myAS7265x.get_calibrated_u()) + ",", end="") # 760nm
print(str(myAS7265x.get_calibrated_v()) + ",", end="") # 810nm
print(str(myAS7265x.get_calibrated_w()) + ",", end="") # 860nm
print(str(myAS7265x.get_calibrated_k()) + ",", end="") # 900nm
print(str(myAS7265x.get_calibrated_l())) # 940nm
if __name__ == '__main__':
try:
runExample()
except (KeyboardInterrupt, SystemExit) as exErr:
print("\nEnding Example")
sys.exit(0)
