pir   173

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günstiger bewegungsmelder, selbstgemacht - wirres.net
bewegungsmelder sind nach der kühlschrankbeleuchtung eine der besten erfindungen der welt. bewegungsmelder wirken auf mich nach wie vor wie magie. ich gehe irgendwo hin und das licht geht automatisch an. wie toll ist das denn bitte? manchmal wird die magie ein bisschen gestört durch laute knackgeräusche von relais. deshalb wirkt der bewegungsmel …
pir  bewegungsmelder  esp8266  esphomeyaml 
february 2019 by Finkregh
Hack a PIR Motion Sensor with an ESP8266 | Random Nerd Tutorials
In this project we’ll modify a commercial motion sensor (powered with mains voltage) with an ESP8266 to log data whenever motion is detected. The data will be sent to Node-RED using MQTT communication protocol. The ESP8266 will be powered through the motion sensor phase out wire using the HLK-PM03 AC/DC converter.
randomnerd  tutorial  pir  motion  esp8266  arduino 
february 2019 by cyberchucktx
Modifying Cheap PIR Motion Sensor to Work at 3.3V
This post shows how you can bypass the voltage regulator on your pir motion sensor and use this module at 3.3V.
howto  electronics  witchlights  pir  infrared  sensors 
january 2019 by joshd
Cheap Pyroelectric Infrared PIR Motion Sensor on 3.3v
How to take a cheap 5V PIR sensor and mod it to work at 3.3V

Essential Witch Lights information
howto  electronics  sensors  pir  infrared  witchlights 
january 2019 by joshd
Security Lighting At Alertelectrical.com
Alert Electrical supply a range of security lighting products.
Security  lighting  AlertElectrical  PIR  GJD  control  spotlight  floodlight 
january 2019 by searchmeister
Security Lighting | GJD - Detect & Secure
Supplier of security lighting, sensors, controllers.
lighting  Security  GJD  PIR  sensor  controller 
january 2019 by searchmeister
The Difficulty Of Private Contact Discovery
Interesting expose of available techniques to request data from a server without leaking anything to the server.
privacy  security  bloom  filter  rsa  private  information  retrieval  pir  encrypted  blind  signature 
december 2018 by pyrho
Berührungsloser Lichtschalter | Mac & i | Heise Select
Der Hue Be­we­gungs­mel­der be­sitzt einen py­ro­elek­tri­schen Sen­sor (PIR) und er­fasst in einem Win­kel von 100 Grad Be­we­gun­gen auf eine Dis­tanz von etwa 5 Me­tern. Eine klei­ne LED in der Front leuch­tet dann kurz auf. Die Emp­find­lich­keit lässt sich in drei Stu­fen re­geln. Der PIR er­fasst die Hel­lig­keit in Lux und die Raum­tem­pe­ra­tur. Die Werte kann man ent­we­der in App­les Home-App ein­se­hen oder per Siri er­fra­gen, etwa durch „Hey Siri, wie warm ist es im Flur?“ Für die Ho­me­Kit-Au­to­ma­ti­on lässt sich nur die Be­we­
Christian  Badezimmer-Beschallung  ESP32  PIR  Helligkeit/Lux_erfassen  Philips-Hue  Philips-Hue-Bridge  ZigBee  wireless  Apple  Embedded_Systems  HomeKit 
august 2018 by snearch
ESP32 with PIR Motion Sensor using Interrupts and Timers | Random Nerd Tutorials
This tutorial shows how to detect motion with the ESP32 using a PIR motion sensor. In this example, when motion is detected (an interrupt is triggered), the ESP32 starts a timer and turns an LED on for a predefined number of seconds. When the timer finishes counting down, the LED is automatically turned off.
esp32  tutorial  motion  interrupts  timers  pir 
august 2018 by cyberchucktx
ESP8266, Deep Sleep mode test, wake up with a PIR motion detector • DIY Projects
How to use the Deep-Sleep mode of the ESP8266EX WiFi module. Wake up with a PIR motion detector, publish status to MQTT Broker
ESP8266  deepsleep  PIR  motiondetector  motion 
july 2018 by arnoldn
HC-SR501 PIR Motion Sensor
◦ Adjust the distance potentiometer clockwise rotation, increased sensing distance (about 7 meters), on the contrary, the sensing distance
decreases (about 3 meters).
◦ Adjust the delay potentiometer clockwise rotation sensor the delay lengthened (300S), on the contrary, shorten the induction delay (5S).
raspberrypi  pir  sensor 
june 2018 by photoangell

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