RBL-STEM Product
- Batik Graph Coloring
Batik is the result of a combination of art and technology inherited from our Indonesian ancestors. Batik has become a characteristic of Indonesia. Graph batik is batik obtained from the work process in Graph Theory, namely by using local (a, d)-antimagic coloring. This graphic batik is an RBL-STEM product from PUI-PT Kombinatorika and Graf. This graphic batik can be used to improve students' combinatorial thinking skills in developing line motif designs with local wisdom. Apart from being an RBL-STEM product, this graph batik is also expected to be able to increase the feeling of love for the country that students need to have nowadays. So that we do not forget what our ancestors have inherited in the past.
2. Learning Model Training
The independent curriculum is a curriculum with diverse intracurricular learning where the content will be more optimal so that students have enough time to deepen concepts and strengthen competencies. Through project based learning that is integrated with the STEM approach within the independent curriculum framework, we can increase students' metaliteracy. Through the independent curriculum implementation (IKM) workshop held by PGRI Argopuro University Jember, Prof. Drs. Dafik, M.Sc., Ph.D. providing training in STEM learning models in the independent curriculum.
3. Smart Sensor Products
a. Air Quality Sensor
The MQ-6 sensor is a gas sensor used to detect the presence of methane gas (CH4) and LPG (Liquid Petroleum Gas), such as propane and butane, in the air. These sensors can be used to measure air quality associated with these gases, especially in the context of security and environmental monitoring. The MQ-6 sensor works on the principle of changing the electrical resistance of the heating element when the targeted gas is detected. When methane or LPG gas is present in the test environment, the gas will interact with the heating element on the sensor, causing a change in resistance. These changes are then measured and used to determine the gas concentration in the air.
b. pH Sensor
A pH sensor for Arduino is a device that allows you to measure the pH level of a liquid using an Arduino microcontroller. pH (potential hydrogen) is a measure of the acidity or alkalinity of a solution, with values ranging from 0 (very acidic) to 14.
c. Waterflow sensor
A water flow sensor for Arduino is a device used to measure the flow rate of water through a pipe or channel using an Arduino microcontroller. These sensors are very useful in various applications, such as monitoring water consumption, controlling irrigation systems, or projects that require monitoring water flow.
d. Ultrasonic Sensor/Distance Sensor
The Arduino ultrasonic sensor is used to measure distance by sending ultrasonic waves (sounds beyond the range of human hearing) and measuring the time it takes for these waves to bounce back after hitting an object. With this travel time information, you can calculate the distance between the sensor and the object using a basic formula:
Distance = (Speed of Sound * Travel Time) / 2
Distance sensors can be used to measure the width of a river and the depth of water.
e. Watering Automatic System
Automatic watering sensor with Arduino is a project that aims to control plant watering automatically based on the soil moisture level. In this project, you will use a soil moisture sensor and an Arduino to measure soil moisture, and if the humidity drops below a certain level, the system will activate a water pump to water the plants.
