FRANZIS 55103 Raspberry Pi Advent Calendar, Build and Program a Nativity Scene in 24 Days, Includes 52 Page Manual, No Soldering

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Nice and simple code here that you've played with before - we importwhat we need, set up the break beam pin number (with pull down), then run a while loop with an if statementwaiting for the pin to go LOW(the beam to be broken).

Today we're going to be setting up our motion sensor then testing it by moving our bodies. Then, similar to some of the previous boxes, we'll combine this with other components to create fun little projects including our own little alarm system with a new function to learn! Construct the Circuit It uses similar code to the example above, but we make it a little busier by adding in the LEDs with a new variable to set a target ( targetscore), additional if statements to light the LEDs depending on score, and some tweaks to the printlines to show the target next to their current score. Setting a target score

We also import sysin this example. The only reason we add this is to allow us to use sys.exit() to end the program after the game has finished. Our LEDs have two legs, one longer than the other, as they have a specific polarity - which means that electrical current can only flow in one direction (and if not, the LEDs can be damaged!). Now just make sure that ‘MicroPython (Raspberry Pi Pico)' is selected in the first drop-down box, select the available device in the ‘Port’ drop-down, then select ‘OK’. So why is this better? Let's look at two examples below where we want to print a set of strings three times. Both of the following examples have the exact same outcome (try them yourself) however the code using functions is shorter. The Pico can use many different programming languages, however the most popular is MicroPython which is what we'll be using over the next 12 days.

Hi the-pi-hut! We know it feels a little early to be talking about advent* calendars, however after the huge demand last year, wiring diagrams make this perfect for anyone wanting to get started with the Raspberry Pi Pico, programming and electronics. Our buzzer can generate different tones based on the PWM frequency and duty cycle we use in our code - this should sound familiar as we covered PWM yesterday. PWM Frequency and Duty Cycle with Buzzers This leaves plenty of time for customers to receive their calendars in time for the 1st December start date. Our code below also uses pull downs - you can see this at the end of each of the button set up sections as Pin.PULL_DOWN.Here's another simple example just to show you how easy it is to change the tone on your buzzer from one to another.

Welcome to day ten of your 12 Projects of Codemas Advent Calendar. Today we have another new sensor to play with - a break beam sensor! It's the ultimate blinky-themed festive treat for makers of all experience levels, guiding you step-by-step through 12 exciting Today we'll be using our buzzer in a few different ways, first for simple beeps and tones, then combining with our potentiometer to control the volume, then finally something a little more advanced where we use different frequencies to generate festive tones! Letter case is very important with MicroPython and other code languages. Our print is always ' print' and never ' Print'.The included Raspberry Pi Pico H and project parts combined with the easy-to-follow instructions, clear example code and helpful This is a digital sensor, giving us a HIGH signal if movement is detected. We can code this in a similar way to the buttons from day #3 as a trigger for our program. To do this, we need to introduce while loops into our code. Technically you could just repeat the ON/OFF code above, but that would make your code very long indeed and would eventually end, so let's look at a better way ( but perhaps not the best way...we'll show you another way in a future box once we've got the hang of MicroPython). Duty cycle for the Pico in MicroPython can range from 0 to 65535, which is handy as this matches the output of our potentiometer ( 0-65535) so we can use this value directly without having to manipulate it. What is PWM Frequency? You also need to connect the right leg of each LED leg to a GPIO pin. Use GPIO18 (physical pin 24) for Red, GPIO19 (physical pin 25) for Amber, and GPIO20 (physical pin 26) for Green, like the diagram below.