SysEx Protocol

param8 uses SysEx messages for communication between the firmware, remote script, and editor. All messages use manufacturer byte 0x6F.

Message Format

F0 6F <status> <data...> F7

Status	Name	Format	Description
`0x00`	Param Name	`F0 6F 00 <idx> <static> <ascii...> F7`	Set parameter name for encoder (idx 0–7) or button (idx 8–15)
`0x01`	Param Value	`F0 6F 01 <idx> <static> <ascii...> F7`	Set value display text for encoder idx
`0x02`	Bank Label	`F0 6F 02 00 00 <ascii...> F7`	Set bank label (right header)
`0x03`	Device Label	`F0 6F 03 00 00 <ascii...> F7`	Set device label (left header)
`0x05`	Handshake	`F0 6F 05 F7`	Connection handshake from remote script
`0x07`	Request Controls	`F0 6F 07 <preset> F7`	Respond with all control configs for preset
`0x0C`	Set Encoder	`F0 6F 0C <preset> <idx> <type> <num> <ch> F7`	Configure encoder
`0x0D`	Set Button	`F0 6F 0D <preset> <idx> <type> <num> <ch> <toggle> F7`	Configure button
`0x0E`	Set Layout	`F0 6F 0E <layout> F7`	Set display layout (0/1/2)
`0x0F`	Set Control Name	`F0 6F 0F <preset> <idx> <isBtn> <ascii...> F7`	Store custom control name
`0x10`	Screen Saver	`F0 6F 10 <hi7> <lo7> F7`	Set screen saver timeout (seconds, 14-bit)
`0x11`	Preset Name	`F0 6F 11 <preset> <ascii...> F7`	Set preset name
`0x12`	Set Watcher	`F0 6F 12 <preset> <idx> <on> F7`	Enable/disable parameter watcher

Status	Name	Format	Description
`0x04`	Preset Change	`F0 6F 04 <preset> F7`	Current preset notification
`0x0C`	Encoder Config	`F0 6F 0C <preset> <idx> <type> <num> <ch> F7`	Encoder configuration dump
`0x0D`	Button Config	`F0 6F 0D <preset> <idx> <type> <num> <ch> <toggle> F7`	Button configuration dump
`0x0E`	Layout Config	`F0 6F 0E <layout> F7`	Current layout
`0x0F`	Control Name	`F0 6F 0F <preset> <idx> <isBtn> <ascii...> F7`	Stored control name
`0x10`	Screen Saver Config	`F0 6F 10 <hi7> <lo7> F7`	Current screen saver timeout
`0x11`	Name Request	`F0 6F 11 <idx> <isBtn> <type> <num> <ch> F7`	Request control name from remote script

Text in SysEx uses a 2-byte encoding per character:

Type byte	Value byte	Result
`0x00`	`0x00–0x5E`	ASCII 32–126 (standard printable)
`0x01`	`0x00–0x7F`	Extended ASCII 128–255