An MQTT sensor module. Supports DHT sensors and LDR sensors so far - timmo001/mqtt-sensor-module. Skip to content. Navigation Menu Toggle navigation. Sign in ... Add an analog LDR to your analog pin ...

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Light sensor Dark sensor. Light and dark detection using an LDR. For this project, let’s stick to the LDR sensor module so we can select the light or dark detection by placing jumpers. We’ll be using ...

LDR Sensor Module x2. 2WD- Two Wheel Drive Robot Car kit (includes the acrylic frame, Wheels, BO Motors, Castor Wheel, Screws and nuts, etc.) x1. MX1508 Motor Driver Module x1. 9v Battery or 4 AA ...

In this project we are making a Light Sensor using LDR with Arduino to control a light bulb ... OUTPUT); pinMode(relay, OUTPUT); pinMode(LDR, INPUT); Reading the voltage analog value through the A0 ...

1. This circuit, based on a PIC microcontroller with a few added components, converts a sensor-based voltage into a 4- to 20-mA current loop. Shown is the circuit as originally drawn on a whiteboard.