https://www.esp32.com/viewtopic.php?f=17&t=3188&start=30#p22401
To remove the green boogies on output.
Hardware also viable – https://www.maximintegrated.com/en/app-notes/index.mvp/id/4111
Need to test more boards, find optimal design board, or do in software with lsb
Great description of driving boards here -https://fw.hardijzer.nl/?p=223