SunFounder Pico-4wd car User manual

SunFounder pico_4wd_car
www.sunfounder.com
Sep 21, 2022

CONTENTS
1 Get Started 5
1.1 1. Install Thonny IDE .......................................... 5
1.2 2. Install MicroPython on Your Pico ................................... 7
1.3 3. Upload the Libraries to Pico ...................................... 11
1.4 4. Test the Modules ........................................... 14
1.5 5. Assemble the Car ........................................... 25
1.6 6. Examples ............................................... 25
2 Appendix 53
2.1 Introduction to Raspberry Pi Pico .................................... 53
2.2 Introduction to Pico RDP ........................................ 55
2.3 Schematic and Structure Drawing .................................... 56
2.4 Thonny IDE Introduction ........................................ 57
3 FAQ 59
3.1 Q1: NO MicroPython(Raspberry Pi Pico) Interpreter Option on Thonny IDE? ............. 59
3.2 Q2: Cannot open Pico code or save code to Pico via Thonny IDE? ................... 60
4 Thank You 61
5 Copyright Notice 63
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SunFounder pico_4wd_car
The Pico-4wd is a Raspberry Pi Pico based, cool, robot car kit that everyone can have.
Equipped with greyscale sensor module and ultrasonic module, it can perform line tracking, cliff detection, follow and
obstacle avoidance functions. The RGB boards assembled at the bottom and rear of the car make it the coolest spirit
in the dark.
We have provided sample code based on MicroPython so you can get started quickly.
In addition, you can also use an app - SunFounder Controller - to DIY your own control methods! Let’s Play!
Here is the Email: [e-mail].
About the display language
In addition to English, we are working on other languages for this course. Please contact [e-mail] if
you are interested in helping, and we will give you a free product in return. In the meantime, we recommend using
Google Translate to convert English to the language you want to see.
The steps are as follows.
• In this course page, right-click and select Translate to xx. If the current language is not what you want, you can
change it later.
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SunFounder pico_4wd_car
• There will be a language popup in the upper right corner. Click on the menu button to choose another language.
• Select the language from the inverted triangle box, and then click Done.
Source Code
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SunFounder pico_4wd_car
SunFounder Pico-4wd Car Code
Or check out the code at
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SunFounder pico_4wd_car
4 CONTENTS

CHAPTER
ONE
GET STARTED
In this section, you will learn all the hardware and software configurations needed to get Pico-4wd up and running,
and it is recommended that you read them in order.
1.1 1. Install Thonny IDE
Before you can start to program Pico with MicroPython, you need an integrated development environment (IDE), here
we recommend Thonny. Thonny comes with Python 3.7 built in, just one simple installer is needed and you’re ready
to learn programming.
Note: Since the Raspberry Pi Pico interpreter only works with Thonny version 3.3.3 or later, you can skip this chapter
if you have it; otherwise, please update or install it.
1. You can download it by visiting the website. Once open the page, you will see a light gray box in the upper right
corner, click on the link that applies to your operating system.
2. The installers have been signed with a new certificate which hasn’t built up its reputation yet. You may need
to click through your browser warning (e.g. choose “Keep” instead of “Discard” in Chrome) and Windows
Defender warning (More info Run anyway).
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SunFounder pico_4wd_car
3. Next, click Next and Install to finish installing Thonny.
6 Chapter 1. Get Started