Did you try this, binary mode. OPEN COM · QB64Official/qb64 Wiki · GitHub https://github.com/QB64Official/qb64/wiki/OPEN-COM Get Outlook for Android<https://aka.ms/AAb9ysg> ________________________________ From: vcf-midatlantic <vcf-midatlantic-bounces@lists.vcfed.org> on behalf of Duane Craps via vcf-midatlantic <vcf-midatlantic@lists.vcfed.org> Sent: Tuesday, November 8, 2022 5:19:13 PM To: VCF <vcf-midatlantic@lists.vcfed.org> Cc: Duane Craps <DBC1964@cox.net> Subject: [vcf-midatlantic] sequential bytes to a com port How do you send sequential bytes to a com port in microsoft BASIC without spaces or CR-LFs. I want to dump program files to a serial paper tape punch. I am actually using QB64 (which I love) that parses BASIC source to C++ and compiles it. Very fast and reputed to be compatible. -- Duane Craps sdɐɹɔ ǝuɐnp -- DuaneCraps sdɐɹɔ ǝuɐnp