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 In this lesson, we use OSOYOO mini bricks to make a smart garage gate. When Ultrasonic detect a car, the gate will open automatically.

Note: ALL OSOYOO Products for Arduino are Third Party Board which is fully compatitable with Arduino

Before you build an elevator with blocks, please according to the Preparation before class 3: https://osoyoo.com/2021/12/01/preparation-before-class-3

How to build:

PDF tutorial: https://osoyoo.com/picture/Block_kit/lesson1/lesson1.pdf

Video tutorial: as following:

Connect ultrasonic sensor to D7D8 slot with 4pin PnP cable, Servo to D9 port as per following picture:

Note: In this kit, we use mblock as programming tool, if you want to learn more about mblock, please visit preparation before class 1: https://osoyoo.com/2021/12/01/preparation-before-class-1

Step 1) Download mBlock PC from https://mblock.makeblock.com/en-us/download/, select the download file as per your computer OS type:

Step 2) Download OSOYOO_UNO.mext device file from https://osoyoo.com/driver/mblock/osoyoo_uno.mext

Step 3) Run the mBlock PC software by double click the lovely Panda icon. you will see mBlock UI as following picture. Please delete the default device CyberPi by click the cross in the red circle.

Step 4) Drag and Drop osoyoo_uno_mext file(downloaded in Step 2) to mBlock software as following:

Now you will see a new device firmware in mBlock, see following picture:

Now you will see a new device firmware in mBlock, see following picture:

Now mBlock software and OSOYOO_UNO device firmware have been successfully installed in our PC!

Now we will show you how to use blocks to turn above idea into reality.
Step 1: Click Control, then Drag and drop Forever block to programming area as following:

Step 2: Click Events,   add when Arduino Uno starts up block to the top:

Step 3: Click Control, add if then block inside forever block:

Step 4: Click Operator category, then add < 50 block into if else block condition area, change the value from 50 to 15 as following:

Step 5: Click Sensor category, add read ultrasonic sensor block into <15 block, change trig pin to 7 , echo pin to  8 as following:

Step 6: Click Action category, add two pcs set servo pin blocks into if else block, change angle as value to 20 and 90 as following:

Now we have completed the block programming.  The final blocks look like following:


 Upload the program to OSOYOO basic board.

1)you need click the Connect button in the bottom of the mBlock software, you will see a USB window pop up,
2) select Show  all connectable device check box , then a device drop-down menu will show up,
3) select your port from device drop-down menu
4) click Connect button to  connect your PC to OSOYOO basic board.

5)After you PC is connected to OSOYOO basic board,  please click Upload button in the bottom of your software, then the code will be uploaded to OSOYOO basic board:

When your car arrives the gate front and is detected by ultrasonic sensor, the gate will open. When the car passes the gate, the gate will close automatically.

No. Picture Device Qty. Link
1 OSOYOO Basic R3 Board for Arduino 1 Click here to buy
2 OSOYOO Magic I/O Shield for Arduino 1 Click here to buy
3 OSOYOO Ultrasonic Detector Module 1 Click here to buy
4 OSOYOO IR Receiver Module 1 Click here to buy
5 OSOYOO Red button module 1 Click here to buy
6 IR remote controller 1 Click here to buy
7 9V Battery Box 1 Click here to buy
8 9V Battery 1 Click here to buy
9 Servo 1 Click here to buy
10 Motor 1 Click here to buy
11 Acrylic plate for Arduino UNO 1 Click here to buy
12 Acrylic plate for 9V battery case 1 Click here to buy
13 OSOYOO Ultrasonic Sensor Block 1 Click here to buy
14 3 pin 10cm PnP cable 1 Click here to buy
15 3 pin 20cm PnP cable 1 Click here to buy
16 4 pin 20cm PnP cable 1 Click here to buy
17 B117 4 Click here to buy
18 B115 15 Click here to buy
19 B113 10 Click here to buy
20 B111 10 Click here to buy
21 B109 10 Click here to buy
22 B107 4 Click here to buy
23 B105 12 Click here to buy
24 B103 12 Click here to buy
25 T040 6 Click here to buy
26 T024 4 Click here to buy
27 T016 4 Click here to buy
28 L024 14 Click here to buy
29 LT33 8 Click here to buy
30 L035 12 Click here to buy
31 X044 20 Click here to buy
32 F057 26 Click here to buy
33 T033 8 Click here to buy
34 PS11 40 Click here to buy
35 P021 60 Click here to buy
36 P011 160 Click here to buy
37 Z005 30 Click here to buy
38 Z010 16 Click here to buy
39 Z101 12 Click here to buy
40 Z1S1 8 Click here to buy
41 A024 8 Click here to buy
42 A013 2 Click here to buy
43 A050 12 Click here to buy
44 A05S 6 Click here to buy
45 A080 4 Click here to buy