Project Name: Portable ECG
Author: hc5
Today’s highlight is!One device to solve everything!
This is an ECG device made with ESP32, it also serves as a satellite clock and an accurate thermometer!
When monitoring,please pay attention to electrode allergy, if allergic to the electrode, please change it in time.
Liquid dressing (3M) can be sprayed on the adhesive area in 3-4 layers to protect the skin from allergies (other liquid dressings have not been tested for anti-allergy effects)
This project miniaturizes and simplifies the traditional large ECG devices,just attach electrodes to the body for precise detection.
Supports switch to prevent accidental touch.
Equipped with a 2500mAh lithium battery for 24h operation
The screen is a 3.5-inch touchscreen
Built-in touch menu to record ECG, set alarm thresholds, and switch alarm sounds
The clock can be synchronized with just a pair of points, no network time correction needed,can be used in the wild, remote areas, expanding its application range.
How to achieve these highlights? How is its circuit designed? Let’s take a look!
This project is based on ESP32 and AD8232.
Schematic
PCB Diagram
Main Control:ESP32-WROOM32
ECG Front End:AD8232-ACPZ-R7
Room Temperature:BMP280
Charging Management:TP4056
Battery:2500mAh (Lichuang Mall C5289758)
Screen:ILI9488 [3.5-inch resistive touch]
During assembly,the SD card slot on the ILI9488 needs to be removed to make space for the battery
If the time is not accurate, it can be manually synchronized, andturning off the time module can reduce power consumption to extend battery life.
When using a 2500mAh battery,the battery should be placed on the left side, and the wire ends need to be protected with hot melt glue, boat switch (C2885782)
For the software part of this project, please visit the open source website, the author has made it open source.
This project has been open-sourced!
—— Want to replicate ? Want to give the author a thumbs up ? you can copy the open source URL to go to the original text.
Open Source URL:https://oshwhub.com/lmppbba/portable-ecg
Click the end of the article【Read Original】 to directly enter the original text.
*This article is reprinted from the user creation of the “Lichuang Open Source Hardware Platform”, if there is any infringement, please contact us to delete
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