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
developer : Ted Lien
Step 1: Preparation
2. acrylic (roughly 15cmx7cm, thickness:3mm, any shape would work)
4. SG90 servo
5. Arduino Uno R3
Step 2: Bend the Acrylic
Bend the acrylic with lighter
Step 3: 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
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
The main loop of Arduino is to monitor any byte from serial port. If any, ring the bell.
Step 6: Proof of Test
The code is tested with the real world. I hope this help and enjoy.