Abstract :
Blindness is the condition of a person who experiences interference or
obstacles in his vision. Based on the level of disturbance, blind people are divided
into two, namely total blindness and who still have remaining vision (low vision).
This portable thermometer for blind people has conducted research testing by
measuring the temperature of the room in an open place under direct sun to get
high temperature values and reduce (stabilize) the temperature in a closed room
(indoors) from a portable thermometer research for blind people sound or
temperature measured through the speaker components on the portable
thermometer, the data comparison or error difference from the portable
thermometer can be seen from the research and retrieval of test data. This data is
taken from the portable thermometer sound output and compared to a standard
thermometer where a standard thermometer measures by issuing a value with an
LCD display and a portable thermometer outputs a measured temperature value
through the speaker module, an error from a portable thermometer that has been
done by the study author has an error difference of 0,75 %, portable thermoter
can measure temperature values from a temperature range of 9o C to 50o C and light a measured temperature with integer values.