Arduino Crowtail and Easy Pulse Plugin
Arduino Crowtail is a modular and ready-to-use building block set from Elecrow for rapid prototyping with Arduino. It consists of a base Arduino Uno shield to which various sensor and I/O modules can be conveniently interfaced through standardized connectors. In this example, I am going to illustrate how to use the Easy Pulse Plugin sensor with a Crowtail base shield and a Crowtail OLED module to make a stand-alone pulse meter.
You will need the following items to complete this project.
You can now get all of these items from Elecrow.
The connections for setting up a stand-alone pulse meter are very easy and can be done in the following steps.
- Insert the Crowtail base shield on top of Arduino Uno.
- Insert the Easy Pulse Plugin sensor directly into the left-side headers of the base shield as shown below. The A0 and A1 pins on the Easy Pulse Plugin board should match with the A0 and A1 analog pins on the base shield. Please read the Easy Pulse Plugin sensor description page for details of these pin functions. Make sure that the JP1 and JP2 shunt jumpers are placed to 5V and A0 pins, respectively, on the Easy Pulse Plugin board.
- Connect the OLED module to the I2C port of the base shield with a standard 4-pin cable provided with the OLED module.
You will need to install Stanley Huang’s micro LCD library first to your Arduino Libraries directory before compiling the Arduino Sketch for this project. You can download the library and Arduino program from the links below.
Upload the Arduino sketch and your stand-alone pulse meter is ready to rock. The pulse rate is displayed in beats per minute (BPM) and is refreshed in every 3 seconds.
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