# 4 lane traffic light control with raspberry Pi and Node red

**URL:** <https://discourse.nodered.org/t/4-lane-traffic-light-control-with-raspberry-pi-and-node-red/54852>\
**Category:** Share Your Projects\
**Created:** [8 December 2021 04:12 UTC](https://discourse.nodered.org/t/4-lane-traffic-light-control-with-raspberry-pi-and-node-red/54852 "2021-12-08T04:12:16Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![hasan\_s\_m](https://avatars.discourse-cdn.com/v4/letter/h/90ced4/32.png) [@hasan\_s\_m](https://discourse.nodered.org/u/hasan_s_m)\
**Post date:** [8 December 2021 04:12 UTC](https://discourse.nodered.org/t/4-lane-traffic-light-control-with-raspberry-pi-and-node-red/54852/1 "2021-12-08T04:12:16Z")

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[flows.json](https://discourse.nodered.org/uploads/short-url/qlqRz5eLVXsjX5KvkokFKR8AyFi.json) (72.8 KB)

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**Author:** ![Trying\_to\_learn](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/trying_to_learn/32/28400_2.png) [@Trying\_to\_learn](https://discourse.nodered.org/u/Trying_to_learn)\
**Post date:** [8 December 2021 20:33 UTC](https://discourse.nodered.org/t/4-lane-traffic-light-control-with-raspberry-pi-and-node-red/54852/2 "2021-12-08T20:33:05Z")

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Slight suggestion:  
There are a lot of unusual nodes in this and you have not really explained what it is doing.

It may be better if you explain what this is for and what other nodes you need to be able to use it.