查看Micro:Bit Valon-I的源代码

[[Image:Valon-I.png|400px|thumb|Valon-I]]

== Programmable educational robot Valon-I ==

Valon-I is a programmable robot designed for maker education.

'''Official way to buy: [http://yfanmcu.taobao.com/ Enterprise Store],[https://item.taobao.com/item.htm?id=620974170340 Valon-I for Micro:Bit]'''


Trolley installation video: coming soon......

== Introduction ==

Valon-I is a programmable robot specially designed for maker education. It supports multiple programming environments such as MakeCode, Scratch and Python; it has the advantages of flexibility and exquisiteness, simple installation, easy to use, etc., and a variety of interesting functions, which can cultivate and develop children's logical thinking ability in a relaxed and happy situation, and it is helpful To increase interest in learning.

Valon-I intelligent robot, equipped with N20 all-metal high-quality micro geared motor, power indicator LED, programmable LED/buzzer, motor drive system, lithium battery power supply system, one-button switch start, line tracking sensor, optional RGBLED module/ Ultrasonic module is used as the eyes of the robot; and it extends 2 3PGVS standard sensor interface and 1 I2C interface, which has strong scalability.

== Function ==

[[File:Valon_function.png]]

== Parameters ==

* Power supply voltage: 7.4V DC (2 3.7V lithium batteries, note that dry batteries are not supported)
* Anti-reverse connection, anti-overdischarge, one-key activation of lithium battery module
* One-key start switch x1
* Power indicator x1
* Infrared line patrol sensor (digital signal) x3
* Buzzer x1
* LED car lights (digital signal) x2
* Expansion port 3P interface (GVS) x2
* Expansion port I2C interface x1
* N20 metal gear motor x2
* Maximum motor speed: 110 rpm
* Lithium battery usage test: 1 hour tracking operation

== Dimensions and weight ==
Product size: 86mm x 89mm x 52mm (height); weight: 102g (excluding battery and motherboard)

[[File:Valon_Dimensions.png]]

== Import the Makecode Extensions==

1.Click the link: makecode.microbit.org, enter the makecode graphical online programming platform. (Note: Loading will be slow in the first time, please wait patiently)

2.Import the library: Copy the Valon-I library's address: https://github.com/YFROBOT-TM/pxt-yfrobot-valon

3.Import the library by following the steps.

[[File:import_the_makecode_graphical_library.png]]

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More suggestions and questions welcome feedback to [http://www.yfrobot.com YFRobot]

Purchase method: [http://yfanmcu.taobao.com/ Enterprise Store]