Fans are electronic equipment that are often found in Indonesia, but fan use is generally still used manually. This can cause the use of fans to be ineffective, and again humans must approach the fan in regulating the fan speed according to room temperature and adjusting the fan direction that is right for use. The purpose of this research is to innovate conventional fans into automatic fans to make it easier and more comfortable for humans to operate. This research method is to explain the design of hardware and software as well as the exposure of the experimental tools. The results of this study are that the fan automatically selects the fan speed according to the temperature read by the DHT11 sensor, and if the read temperature exceeds 350C, the system will spray water vapor through a 12V DC pump and stop if the temperature read is below 350C, then the fan will turn on. On / off automatically according to the presence of people around the fan through the PIR sensor, the temperature indicator and the presence of people are displayed on the 16X2 LCD, then for the fan in terms of turning right-left and spraying perfume can be controlled from a distance of 7 meters via IR remote. Where all these systems are controlled via a microcontroller in the form of ARDUINO UNO

In essence, road access to Kalialo Village is still very difficult due to the dark terrain and street lighting (PJU), this is because the PJU electricity in the village has been cut off since the last 6 months. Kalialo Village has provided information to PLN regarding the cut off of public street lighting but has not received any response to date.To help and facilitate this access, we as the Center for Engineering and Energy Studies feel the need for a Solar Power Plant (PLTS) or Solar Cel. Which will be installed at certain vital points or locations on the road access to Kalialo Village.

A stove is a handy tool for humans. The use of stoves in everyday life brings beneficial and detrimental impacts. A stove is a tool used to help human activities, but the impact of its weakness can cause household accidents caused by the negligence of the community itself. The NodeMCU-based automatic hob was built to address this problem. This stove can set the cooking time and automatically stop working at the specified time. This stove can also turn off automatically if the sensor does not detect the presence of people around to minimize the occurrence of household accidents. This automatic stove is expected to be a technological reformer in household appliances and a solution to reduce the number of accidents caused by stoves.

Starting from the beginning of March 2019 and even until the end of 2020, the Indonesian people are experienced prolonged suffering due to the emergence of a new type of infectious disease called Corona Virus 2019. Social Distancing is a program that aims to prevent the transmission of the COVID-19 disease as early as possible. In this research, the method used is the observation technique and literature study for the implementation of the HC-SR04 sensor as one of the distance sensors used for distance reminders implemented in public spaces using IoT as a monitoring system. The results obtained are the reading accuracy of the HC-SR04 sensor is quite accurate to 100% accuracy and when the HC-SR04 sensor detects less than 8cm (1meter real distance) then the DF Player will sound, the LCD will display a display “Jaga Jarak Anda! ", And there will be a notification"Peringatan: Kondisikan Jarak" on a smartphone that has the Blynk application installed.

In 2025, Indonesia has launched a zero-waste program. Towards a zero-waste program, of course, the community is given awareness in sorting and processing waste. Waste management is a common problem in urban or rural areas, along with the increase in population and people's lifestyles. Waste problems that are not handled properly can cause environmental problems (pollution of air, soil, and water) and public health. Based on the origin, waste is divided into organic and inorganic waste; organic waste is produced from biological materials that can be degraded by microbes or are biodegradable, or waste from fruit, vegetable, and leaf residues. This organic waste is the majority of the waste generated from households, so it is necessary to think about how to process it that is beneficial and efficient. One of these organic waste processing is processed into Eco enzymes, namely processing organic waste with molasses and water in a ratio of !:3:10. The organic waste processing process is first chopped to become a small part to facilitate the fermentation process. The automation of this chopping machine uses Arduino as a microcontroller, a load cell as a measure of the weight of organic waste, an electric motor as a driving force, a solenoid door lock as a lock for the organic waste load before grinding, and a knife as an organic waste count. The purpose of making this tool is to help chop organic waste in the process of processing eco enzymes. The research results on the automation of this organic waste chopper machine loadcell with a load of 1 Kg runs well; the solenoid door lock can hold organic waste to work well. The research results on the motor for upper milling are given a large torque equipped with a downward knife position and a pillow block so that the motor does not shake.