Tired of the old tennis ball? Build your own Smart Parking Assistant with an ultrasonic sensor, wemos d1 mini, and a red/green LED. Use it to help get you park in your garage, and then trigger home automation actions! Giveaway winner will be picked live Thursday 1/17/2019! Blog post with schematic and code: https://blog.hau.me/2019/01/11/diy-sm... Parts: Wemos D1 Mini: https://amzn.to/2CfkAp9 Ultrasonic Sensor: https://amzn.to/2RHOHj2 Red/Green LED: https://amzn.to/2CkDACD 220 ohm resistor: https://amzn.to/2H8KVLq Tools: Circular Saw: https://amzn.to/2HbU4CT Soldering Iron: https://amzn.to/2CfytUu Dremmel w/ routing attachment: https://amzn.to/2M6T6qy Drill: https://amzn.to/2VK2PY1 Flux pen: https://amzn.to/2SPHdYx