Controlling the gripper with Blynk

The gripper can be easily controlled with a simple Blynk app. In the previous few chapters, you have written different code for controlling DC motors with Blynk apps. So, this chapter will only focus on how to control the gripper with the Blynk app.

Creating the Blynk app

The following steps will describe you how to add a Slider widget to your Blynk app:

1. Tap anywhere on the canvas to open the widget box.
2. From the widget list, tap on the SLIDER.
3. Tap and hold the widget to drag it to a new position if you want.
4. The most important parameter to set is PIN. In the OUTPUT section, select the output as virtual pin, V1.
5. Replace the maximum value, 255 with 1023.

Software

Listing 7-1 shows the Arduino sketch that can be used to control the gripper with the Blynk app. The functions for controlling the two DC gear motors are not included in the code to only focus on the gripper (servo). Upload the code to the Arduino using the Arduino IDE by connecting the Arduino to your computer...