Pin State Monitor Module

This module allows you to remotely monitor the live status of devices and debug them by displaying the values of all the pins – both digital and analog. It has the following two display screens:

Analog: This shows the values of the analog pins between 0 and 1023.
Digital: This displays the states of the digital pins. These pins can either be at 1 or at 0.

You can switch between the two screens by sliding right or left.

Introduction

The Pin State Monitor module is one of the most useful module to debug your sensors and calibrate them for your program. This module provides you the real-time status of all the digital and analog pins.

Digital Pins Monitor

This shows the values of all the digital pins states. The state is shown in the form of ON or OFF, where ON state means the state of the pin is HIGH (5V) and OFF state means the state of the pin is LOW (0V).

Analog Pins Monitor

This shows the analog value of the voltage on the analog input pins. The value is shown from 0 to 1023, which is mapped to the voltage from 0 to 5V.

For example is the value showing on the monitor is 512, then the voltage value will be approximately 5*(512/1023) = 2.5V.

Programming the boards for the Module

Choose Your Preferred programming language

Scratch

Arduino

Scratch

Enabling Pin State Monitor

To enable the Pin State Monitor feature for the very first time, you have to upload the following script:

As you can see, there is a stack block named as “ enable pin state monitor” and its function is to enable the Pin State Monitor feature of Dabble.

Note: When you are using this module with Arduino Uno, Mega, and Nano, you have to set the Bluetooth baud rate to the baud rate of the Bluetooth module to have proper communication between the board and the module. To set the baud rate you have to use set Bluetooth baud rate to () block.

Arduino

Header

To include the Pin Monitor module in the Arduino program, you have to include the following header:

#define CUSTOM_SETTINGS

#define INCLUDE_PINMONITOR_MODULE

After defining the above mention headers, you have to include the dabble library:

#include <Dabble.h>

You can download the library from here:

Enabling Bluetooth Communication

To enable Bluetooth communication, you have to initialize serial communication using the following code:

Dabble.begin(Baud_Rate);

Here Baud_Rate is the baud rate set for the Bluetooth module. With evive, you normally get 115200 baud rate modules.

Refreshing the data

To refresh the data that the device has got from the mobile app, you have to use the following line of code:

Dabble.processInput();

Functions

If you want to refresh the pin state in your app, you have to use the following functions to do it:

PinState.sendDigitalData() : This function sends all the digital pin state to the app.
PinState.sendAnalogData() : This functions sends all the analog pin state to the app.

You have to add a delay between sending data to the app. This delay should be greater than 20 microseconds to achieve smooth functionality of the module.

Pin State Monitor Module

Introduction

Digital Pins Monitor