Ideation
- Pulse Monitoring LED Heart Lamp
- I want to make an Arduino-based LED lamp that monitors heartbeats through a pulse sensor and flashes a heart-shaped LED lampshade at the heartbeat frequency.
Material list
- Arduino Uno: 1
- LED lamp (red or RGB): single LED or RGB LED
- Pulse sensor: 1
- Resistor: resistor of appropriate resistance value
- Connection wire: several
- 3D printing material: PLA translucent 3D printing material
Making process
- Connect the output pin (S) of the pulse sensor to the A0 pin (analog input) of Arduino.
- Connect the VCC and GND of the pulse sensor to the 5V and GND of Arduino respectively.
- If using RGB LED, connect the red, green, and blue pins to digital pins 9, 10, and 11 respectively, and each pin is connected to GND through a resistor.
- Circuit test: Use simple code to test whether the LED and pulse sensor are working properly.
- Make a heart in the modeling software and reserve a wiring hole
- Print a 2mm thick lampshade
- Assemble
Hey Chacha, this is a fun idea, and your listed procedure seems sane and feasible to me. Here are some related projects that might help you:
https://pulsesensor.com/pages/code-and-guide
https://learn.adafruit.com/heart-rate-badge?view=all
I even made one a really long time ago, please don’t make fun of me:
https://beckystern.com/2012/01/06/beating-heart-headband/
I imagine you might be using Monty’s sensor, but in case you aren’t, here’s the link to it: https://www.adafruit.com/product/1093
You can use your new Arduino Nano ESP32 for this project, even if you don’t intend to use the wifi (it won’t power on the wifi part unless the code asks it to), because it’s much smaller than the Uno and solderable.
Since you want to 3D print the form, I’ll ask if you have an intended software to use, and how confident are you in proceeding with the form? I can provide recommendations based on your experience level in this area. Hit me up on slack or email to discuss further!
You were asked to brainstorm three ideas, so I must ask if you are super sure this is the project you want to make? OK if yes, just double checking, because you must not change your project idea after this week.