Difference between revisions of "Microduino OLED thermometer(LM35, DS18b20)"

Objective

This tutorial will teach you using two temperature sensor, that are LM35 and DS18B20, and use the OLED module to display the temperature.

Equipment

• Microduino-Core
• Microduino-FT232R
• Other equipment
  • Breadboard Jumper
  • Breadboard
  • LM35 temperature sensor
  • DS18B20 temperature sensor
  • Microduino OLED
  • USB cable

First experiment (LM35 temperature sensor)

Schematic

LM35 and DS18B20 use the same pin connection.

OLED IIC connection method:

Program

LM35 and DS18B20 use the same program.

Refer to MicroduinoOLEDThermometerLM35-DS18B20.ino

Debug

Step 1: Copy the code to IDE and compile it

Step 2: Set up the circuit, as follows:

Step 3: Download the program and then run it.

Step 4: Observe the OLED module. Find a hot object to close the temperature sensor, the OLED will display the value.

Result

After LM35 sensor near the heat source, the OLED displayed value will rise, leave the heat source temperature will gradually reduce.

Experiment (DS18B20 temperature)

Schematic

LM35 and DS18B20 use the same pin connection.

OLED IIC connection method:

Program

LM35 and DS18B20 use the same program.

Refers to MicroduinoOLEDThermometerLM35-DS18B20.ino

Debug

Step 1: Copy the code to IDE and compile it

Step 2: Set up the circuit, as follows:

Step 3: Download the program and then run it.

Step 4: Observe the OLED. Find a hot object to close the temperature sensor, the digital tube will display the value.

Result

After DS18B20 sensor near the heat source, the digital tube displayed value will rise, leave the heat source temperature will gradually reduce.

Video

LM35: http://v.youku.com/v_show/id_XNjkwMTQxMDY4.html

DS18B20: http://v.youku.com/v_show/id_XNjkwMTMyMDcy.html