hello, in the early days of computer optical character recognition, there was a need for a font that could be recognized by the computers of that day, and by humans. The resulting compromise was the OCR-A font, which used simple, thick strokes to form recognizable characters. The font is monospaced (fixed-width), with the printer required to place glyphs 0.254 cm (0.10 inch) apart, and the reader required to accept any spacing between 0.2286 cm (0.09 inch) and 0.4572 cm (0.18 inch). Of course, there are more knowledge about it in other aspects, maybe you should follow the guide, check it to find what you really want.
good luck!