This is my first official device of my sensenshow project. It is a garage sensor to see if the garage door is open, and if there is motion.
Another thing it will monitor is temperature and humidity so my dog will be comfortable in the garage.
Initially I will use an Arduino Uno with an Ethernet and Proto shield.
May switch to a ENC28J60 and a Pro Mini, but after some testing I am having some trouble and it may be power related. May even go wireless with a ESP-01 or even replace the Arduino with a NodeMCU.
- The temperature humidity sensor is a DHT11.
- The motion sensor is a standard version 1 PIR motion sensor.
- I will use an ultrasonic distance sensor to see if the door is open, it is a HC-SR04
- An active buzzer is being used to provide audible alerts.
I think the BOM is at about $40 or $50
I loaded a few sketches to see if this would work, and for the most part it does, now time to document the plan.
Just doing pushups and situps.