Introduction: Arduino KickStarter Bell

This is a modification of Arduino XMAS Hitcounter and a page crawler was added. By using this project, you can be notified by the bell ring whenever the pledged amount is changed. I hope this is helpful and enjoy!

arduino code : serial_python.ino

crawler code : (download python development SDK)

developer : Ted Lien



Step 1: Preparation

Picture of Preparation

1. lighter

2. acrylic (roughly 15cmx7cm, thickness:3mm, any shape would work)

3. bell

4. SG90 servo

5. Arduino Uno R3

Step 2: Bend the Acrylic

Picture of Bend the Acrylic

Bend the acrylic with lighter

Step 3: Assembling

Picture of Assembling

1. connect Servo to pin 14 of Arduino

2. attach bell to the servo

3. assemble as long as the servo is free to rotate

Step 4: Python Code

Picture of Python Code

A page crawler code is added. You can download the source code at the introduction page. You would have to change the URL to your KS project link.

Step 5: Arduino Code

Picture of Arduino Code

The main loop of Arduino is to monitor any byte from serial port. If any, ring the bell.

Step 6: Proof of Test

Picture of Proof of Test

The code is tested with the real world. I hope this help and enjoy.

Ted Lien


Maker Saga (author)2017-05-22


I get "Error in pageCrawler result=data[0].text Index Error: List index out of range.

Maker Saga (author)Maker Saga2017-05-22

I figured it out. It should instead be: "green-700 inline-block js-usd_pledged medium type-16 type-24-md"

ted99tw (author)Maker Saga2017-05-22

Cool and thanks for the update!

About This Instructable




Bio: maker for educational kit since 2014
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