Arduino-based Mini Shaker for Automatic Chemical Solution Mixer

Abstract

The purpose of the research was to make an Arduino-based mini shaker for automatic mixing of chemical solutions. The use of the tool was expected to save time and energy in the process of mixing chemical solutions, facilitate laboratory workers in mixing the chemical solutions quickly and efficiently, and for a safety reason in the laboratory. The design of this tool consists of a time sensor, speed sensor, microcontroller, motor driver and Dc motor. This tool can regulate the speed of a DC motor with three speeds namely 100 RPM low, 150 normal RPM, and 180 high RPM. Based on the results of motor speed measurements, the average error at the motor speed is low 1.4%, normal 2.5%, and high 2.54%, and the average error at the timer is 1 minute 0.03%, 2 minutes 0,1%, 3 minutes 0.05%, 4 minutes 0.016%, and 5 minutes 0.03%.

Recognition of handwritten MNIST digits on low-memory 2 Kb RAM Arduino board using LogNNet reservoir neural network

“…Arduino boards are effectively used to automate processes in many areas, such as education [28], medicine [29], chemical production [30], and resource monitoring in the IoT [31]. A project on an Arduino board for MNIST-10 recognition is described in the literature [32], which uses a linear classifier with two hidden layers and achieves the recognition accuracy of ~ 96%.…”

Automatic limit switch calibrator for control valve at steam turbine of a geothermal power plant

“…The consideration of using this microcontroller board is its ability to support real-time automation systems [21]- [41]. This Arduino board uses an ARM-Cortex M3 CPU core which has a 32-bit ARM core microcontroller [42]- [44].…”