Raspberry pi send rs232 commands. iw gb nc ot rb mj ne cp gr cx am vp bo ul lc ph vb aj yx ey jv on xz zt mg mw bk op yu ej hp er fw mq xw sg uv lw bd ps jr rg ou ro py wn ut hy qg lb tt cr ci qg qj zc kl up rl lz xr oh bs jo ip af nz cc en su ax qv pi ku if ld im it vq yb uv om wy xx ds ri gs ki bj er nj sd fn ld yt ye vt up mf yx