Controlling a DS18X20 temperature sensor on CircuitPython

So, let’s dive into the cool stuff! The expansion board features a DS18X20 temperature sensor, which is one of the two sensors available.
This little gadget will help you display temperature readings right on an OLED display .
First things first, you’ll want to pop the module in place and turn on that OLED display to get started.
Make sure all your connections are nice and secure—this is key to getting accurate readings.
Once everything’s set up right, you’ll have a clear view of all your temperature data right on the screen..

Starting fresh is key, so we’re clearing out any old code and gearing up to write some new stuff for our DS18X20 sensor setup.
First off, we’re importing some essentials, including the yuzio iCache , the 1306 library, and Adafruit’s onewire bus—these are the tools that’ll help us get our temperature sensor up and running.
Next, we bring in the Adafruit D18x20 driver library to make talking to our sensor a breeze.
We then create and configure an instance of the I2C class, setting the SKD XY mode, and we dive into the Adafruit SSID1352 I2C module for improved resolution and address setup.
Now, let’s highlight the one-wire bus system—it’s super important for getting data from our sensor using just one data line connected to the DO pin.
Finally, the DS18X20 scans for one-wire addresses, which helps us get an array ready for communication, usually picking the first address for our next steps..

To kick things off, you should use a while loop to read that temperature value.
Keep checking until you hit a specific condition—this helps ensure accuracy.
Once you’ve got the temperature, you’ll want to stash it in dsTemperature, making sure it stays in its decimal form for any future math you might do.
After that, it’s time to get display1 up and running, so set the parameters to get everything ready for showcasing the info..

Getting started with displaying temperature values on an OLED screen? First, make sure to specify the font name two times to keep everything looking sharp and clear.
Trust me, this step is key for showing your data correctly! Next up, format your temperature reading to two decimal places—like 20.40—to enhance accuracy and make it easy to read.
And don’t forget to convert those numerical values into a textual string format for a smooth presentation.
When you show the temperature, slap a “C” next to it to indicate it’s in Celsius and print that value to the command line for easy checking.
Finally, be sure to add a one-second delay using sleep to give those changes a moment to be properly saved..

So, here’s the deal: we successfully got the temperature displayed on an OLED screen after setting up the connection with the serial communication console.
Right now, it’s showing a cozy 28.94 degrees, proving that our sensor is doing its job.
If you bring your hand close to the sensor, you’ll see the temperature rise, and when you pull it away, it drops—talk about sensitivity! We also talked about the DS18X20 sensor, which is known for being reliable and super accurate, making it a go-to choice for precise temperature measurements.
Lastly, we used CircuitPython to get the DS18X20 sensor up and running, and we wrapped things up by summarizing all the cool insights we gained during the session..