@fdufnews, quand je parlais de matrices de LED, je pensais https://fr.aliexpress.com/item/4001296969309.html?spm=a2g0o.productlist.main.39.624a5AAg5AAg6S&algo_pvid=7068625b-dea9-47aa-b3fd-5a6c69ce0fcd&algo_exp_id=7068625b-dea9-47aa-b3fd-5a6c69ce0fcd-19&pdp_npi=4%40dis!EUR!7.33!4.40!!!7.81!4.69!%40211b600517175251583404615e8605!10000015656587031!sea!FR!4528866339!&curPageLogUid=BYWYJDmTriMq&utparam-url=scene%3Asearch|query_from%3A