➀ This article presents a smart home automation system that allows users to wirelessly control multiple AC appliances like lights and fans via a web interface hosted on the IndusBoard Coin development board.

➁ The system supports both Wi-Fi Access Point (AP) mode and Station (STA) mode, enabling direct connection or integration into existing home networks.

➂ The solution uses PWM signals for fan speed control and relays for switching appliances, offering scalability up to 30+ GPIO pins for additional devices.

➀ Bosch has developed the HCR 100 high-current relay, capable of switching up to 100 amps, which is essential for controlling modern electrical vehicle systems.

➁ The relay is suitable for various applications including engine management, glow plugs, pre-heating systems, loading ramps, start-stop systems, and heated vehicle windshields.

➂ It is designed to be robust and durable, withstanding harsh conditions such as heat, moisture, and vibration, and is dust-tight according to the IP54 standard.