--[[
Checkusm calcluation. Enter the command into the command string below, but do no inlcude the start byte, checksum, or end byte. The result will be printed below.
--]]

command = "\x01\x76\x1a\x01"




local start, checksum, finish, output, readable = "\xfe", 0, "\xff", "", ""
for c in command:gmatch(".") do
  checksum = checksum + string.byte(c)
  output = output .. c
end

checksum = checksum % 255

output = output .. string.char(checksum)
output = output:gsub("\x80", "\x80\x00")
output = output:gsub("\xfe", "\x80\x7e")
output = output:gsub("\xff", "\x80\x7f")
output = start .. output .. finish

for c in output:gmatch(".") do
  readable = readable .. string.format("\\x%02x", string.byte(c))
end

print(string.format("Checksum: %02x\r\nString for command button: \"%s\"", string.byte(checksum), readable))