Module: SpheroUtilities

Included in:
SpheroClient, SpheroRequest, SpheroResponse
Defined in:
lib/rubysphero.rb

Instance Method Summary collapse

Instance Method Details

#add_checksum(full_bytes) ⇒ Object

def



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# File 'lib/rubysphero.rb', line 34

def add_checksum(full_bytes)
	to_chk_bytes = full_bytes.drop(2)
	full_bytes.push do_checksum(to_chk_bytes)
	return full_bytes
end

#do_checksum(bytes) ⇒ Object 



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# File 'lib/rubysphero.rb', line 21

def do_checksum(bytes)
	total=0
	bytes.each do | a_byte |
		total+=a_byte
	end # each
	logd "Checksum of these bytes: #{print_format_bytes(bytes)}"
	chk1= (total%256)
	chk2=  (chk1 ^ 0b11111111)
	logd "Checksum calculated: #{chk2.to_s(16)}"
	return chk2
	
end

#print_format_bytes(bytes) ⇒ Object 



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# File 'lib/rubysphero.rb', line 11

def print_format_bytes(bytes)
	return_str=""
	bytes.each do |rsp_array|
		return_str += rsp_array.to_s(16)
		return_str +=  " "
	end # each
	return return_str
end