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Make a Simple Ventilator - 2nd Part, the Ventilator CPU

1702 0 Jul 13.2020, 14:42:02

This is the 2nd part of the Simple Ventilator System (SMS), it's basically based on an Arduino development board/kit, there are 3 options of Ventilator CPU board:1. Based on Arduino Uno board, whereas this well known ready made board is available (almost) everywhere so this Simple Ventilator System hopefully can be made anywhere & everywhere in answering today requirement of people respiratory machine2. Based on Arduino Mega by ATmega 1280/2560 micro controller, herewith we modify this board as described on the enclosed picture with addition on: - WiFi connection option by using WeMos D1 Pro Mini or Omega 2 module - 3 analog interfaces for analog sensor/push button switch - I2C interface for LCD module - I2C ports for pressure/temperature sensor connection - 2 ports for small DC motor control by those addition, this board become fully Medical Internet of Things with 2 option of WiFi connection, incorp...

Make a Simple Ventilator - 1st part, the Ventilator Controller

4872 0 Jul 09.2020, 15:22:25

In responding to the current world situation, cq. facing Covid-19 Pandemic so we try to design and to make devices to help people, so we herewith design the Simple Ventilator System (SVS ) that mainly using Ambu bag. Hopefully this system can help people respiratory and this system can be made semi open system, open an option to be sell as a complete kit. This Ventilator System contains 2 Electronic Circuit Boards, the Ventilator Controller & the Ventilator CPU. Herewith in this first section we describe the Ventilator Controller which is based on Arduino's L293D Motor Driver Shield that be modified & be added for the HMI (Human Machine Interface) as follows: 1. As 2 pins for I2C protocol are needed, so modify connection pin D13 (suppose for I2C SCL) to pin D1 of Arduino board, but for connecting the 2 I2C ICs (the PCF8574 I/O Expander & the PCF8563T RTC IC) by cables to J20 port for SCL (D13), SDA (D12) & GND pin connection. 2. The PCF8574 I/O Expander will...