Servomotor doesn't run in node-red
问题 This is the first time I program a Raspberry PI and the first time I'm using Python, JavaScript or Node-Red. I'm trying to lift a gate by operating a servomotor in Node-RED. Basically, what I'm doing is take a picture of a license plate with my pi camera, process it, send it to OpenALPR, and get the license plate back as a msg.payload. Now, what I want to do is activate the servomotor if the msg.paylaod.results[0].plate matches the plate numbers I need. I'm trying to create a global variable