Hall sensor module KY-003 & KY-024 for Raspberry Pi and Arduino

Tech details: Operation voltage 3.3 V, 5 V  Temperature range of -40 °C to 85 °C Current input/output max  8/20mA Response time: 3uS   (very fast) Connectivity: 4 pin connector, pins as follows: AO: Analog Output G: 0V...
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Light sensor modules KY-018 and LM393 (3 and 4 pin) for...

Tech details: Comparator output, signal clean, waveform, driving ability, more than 15 mA. ( light sensor LM393  KY-018) Potentiometer to adjust the sensitivity of a light sensor (LM393) Working voltage of 3.3 V - 5...
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Humidity and Temperature sensor DHT-11 (&DHT-22) for Raspberry Pi and Arduino

Tech details: Supply voltage: 3.3-5V Supply current (running): 0.5mA typ. (2.5mA max.) Supply current (stand-by): 100uA typ. (150uA max.) Temperature range: 0 / +50°C ±2°C Humidity range 20-90%RH ±5%RH Response time: 6 -10 sec...
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LED modules for Raspberry PI, Arduino

One of the downsides of ordering your kits from China, is poor labelling. Set came with a picture sheet of low quality, half written in Chinese, with English translation made by Google. This makes...
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Infrared Sensor HC-SR501 PIR Motion Sensor for a Raspberry PI...

How to use PIR sensor with your Raspberry PI.
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