Abstract
In this research, a control system in the form of a syringe pump has been developed to control the volume and flow rate of a liquid or a solution. The syringe pump is fabricated by controlling the speed and pulse width modulation (PWM) of stepper motors based on the Arduino Uno microcontroller board. The tools used are a stepper motor as a syringe driver, the Arduino Uno as a controller, a four-digit seven-segment display and a keypad matrix as an input interface. The syringe pump works by pushing the injection pump whose speed has been adjusted to the flow rate. The speed of the flow rate and volume are obtained by setting the delay time of the stepper motor using PWM pins from the Arduino Uno. The syringe pump is observed to work in the flow rate range of 0.10–12.00 ml h–1. The system can be applied to medical settings as the control of volume and flow rate of drug fluids as well as with nanofibres using electrospinning technique.
Highlights
Researchers have been developing syringe pumps with various variations
The making of a syringe pump based on Arduino Uno with pulse width modulation technique for electrospinning applications has so far not been carried out
The materials used in the research are the keypad as an input interface of time and flow rate parameters, the Arduino Uno as controller of all systems, stepper motor as screw rod drive or pusher, L293N as the driver of the stepper motor, real-time clock (RTC) as controller time, seven segments with MAX7219 as a display for time and flow rate, and acrylic as a box from the syringe pump
Summary
Researchers have been developing syringe pumps with various variations. the making of a syringe pump based on Arduino Uno with pulse width modulation technique for electrospinning applications has so far not been carried out. The early syringe pump invention involves a simple alarm clock mechanism using the clock coil rotation that turns the screw, which gradually pushes the injection plunger. This use of the syringe pump for administering drugs has been practised for years. Based on the previous explanation, this study makes reference to the syringe pump design using an Arduino Uno-based stepper motor to regulate the flow rate in the electrospinning application.[10] This research method consists of several steps, namely making syringe pump software and hardware. The hardware is implemented with the components needed to build the syringe pump with the Arduino Uno as the brain of the system and the stepper motor as a plunger pusher. The flow rate on the syringe pump can be set with a keypad and displayed on the seven-segment display
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