JAICT, Journal of Applied Information and Communication Technologies, Vol.8, No.1, 2023 ———————————————————————————————————— 172 Smart Helmet As Driving Safety Sri Kusumastuti 1 , Suryono 2 , Panji Ardiansyah Ibrahim 3 , Zefania Salsabella Putri 4 and Sindung Hadwi Widi Sasono 5 1, 2, 3, 4, 5 Electrical Engineering Department, State Polytechnic of Semarang, Central Java 50275, Indonesia Abstract— One of the common causes of accidents is physiological factors such as drowsiness. A helmet is a device used to reduce the risk of head injury when an accident occurs while driving. Helmets placed on motorbikes often experience theft to the detriment of the helmet owner. A helmet was created to reduce the risk of an accident, warn motorists when they are drowsy, and provide a warning when a helmet is stolen. The method begins with designing devices, preparing devices, testing, repairing, and adjusting devices. The main components used are Arduino Nano and Arduino Pro Mini. The input components are a pulse sensor, MPU6050 sensor, touch switch, NRF24L01 receiver, rope clip, on/off push button, and limit switch. The output components are one channel relay, NRF24L01 transmitter, and speakers. From the results of testing the device, the helmet will be connected to the motorbike if appropriately used, the speaker will send a rest notification if the rider is drowsy, and the helmet alarm will sound loud when someone wants to steal the helmet. Keywords— Arduino Nano, Arduino Pro Mini, Helm, MPU6050, NRF24L01 1. Introduction A helmet is a device used to protect the head while riding a motorcycle. According to police data, the level of adherence to helmet use for motorcyclists is still low. This situation must be intensified to reduce the risk of head injuries in driving accidents. Using standard helmets for users of two-wheeled vehicles has been shown to reduce the risk of death by up to 40% and the risk of injury by up to 70% [12]. Helmets sold today are used as a safety when an accident or collision occurs on the road. This thing works as a shock absorber between the head and the road to reduce the risk of head injury to motorcyclists. Using a helmet is recognized as protecting riders from potential head injuries due to collisions [9]. One of the common causes of accidents is physiological factors, such as drowsiness. Therefore, it is necessary to carry out an innovation where helmets are used not only as head protection but also to detect drowsiness caused by motorists experiencing fatigue while driving. Helmets placed on motorbikes often experience theft to the detriment of the helmet owner. Thieves usually target helmets with designs that are expensive and easy to steal. It is common for various helmet manufacturers to make double safety locks on helmets, so they are not easily stolen. However, this often makes it difficult for helmet owners when they are in a hurry to ride a motorcycle. This research created a Smart Helmet as Arduino-Based Driving Safety and Security device. This device has the following features: detects a rider not wearing a helmet properly, detects driver drowsiness, and sounds an alarm if the helmet is stolen. 2. Device Design This smart helmet is designed with a system that is divided into three, namely input, processor, and output. The explanation of the function of each block in Figure 1 is as follows: Fig 1. Block Charts