ev charging (raspberrypi)

[chicco785]

• when sensor detect something (proximity)
• send message parking spot occupied
• turn on red light (closed loop)
• if charging button pressed (and sensor detect something), blink red light for 10 seconds (then again static red)
• when sensor detect nothing
• send message parking spot free
• turn on green light (closed loop)
• use a mqtt queue, 1 topic per sensor (2)