So, with just two cheap modules, you can build a laser proximity sensor—whether it is the thru-beam type or the reflective type. But I will not go into the build ideas as there are countless tutorials ...

Ultrasonic sensor module (e.g., HC-SR04) for obstacle detection. Relays for controlling motor movement. DC motors for robot movement. ... Connect the hardware components (microcontroller board, ...

Modul relay IoT 2 channel berbasis ESP8266, dilengkapi konektor untuk sensor seperti DHT11. Cocok untuk project otomasi pintar berbasis WiFi. - duwiarsana/Modul-Relay-Iot. Skip to content. Navigation ...

Not shown in the above scheme, but a clever idea is to fit the supply line of the relay stage with a bypass capacitor (100uF or so). This would soak up the current transients when the relay turns on ...

This work presents the problem of target tracking and relay localization in wireless sensor networks (WSN) based on quantized proximity sensors. Thus, we use the quantized variational filtering (QVF) ...