VNC (Virtual Network Computing) for Raspberry Pi

It's been awhile since my last post. Today, I will talk about the VNC of Rpi. This post was cited from this link.

Headless Connection

By using this method, we do not need to connect the Raspberry Pi to any keyboard, mouse and monitor. You can access it from any PC, Android device or iOS device.

My current Rpi setting: 

Preparation

1. Raspberry Pi Ver3.
2. Wireless Dongle
3. Power adaptor

Method

1. Install SSH software in your Raspberry Pi. Please refer to this link for details.
2. Find the IP address using command ifconfig. Please refer to this link for details.
3. Install tightvnc in the Raspberry Pi. Please refer to this link for details.
4. Setting fix IP address for Rpi. command nano /etc/network/interfaces and add under wlan0 the text below:

5. Restart and install VNC on your PC and gadget. It is available at playstore for Android device.

6. Done. You are ready for VNC of Rpi.

Please contact me if you more information on the setup.

Stay tune for more posts.

Raspberry Pi Customer Satisfaction Survey

Introduction
This is a simple project to capture customer satisfaction survey using Raspberry Pi. This survey only has 5 rating ranging from very poor, poor, average, good, & excellent.

Figure 1 Rating of Customer Survey Satisfaction

Material Required

Figure 2 Raspberry Pi connected to push button & 16X2 LCD

1 - Raspberry Pi Ver B.

1 - LCD Monitor, 1 - HDMI cable, 1 - 5V Adaptor, 1 - keyboard, 1- Mouse, 1 - Wireless Dongle

1 - Breadboard

1 - 5 Push button (5 rating selection)

1 - IDE Cable

10 - Male to male jumper

Source Code & Result

Figure 3 Declaration of GPIO for both LCD, Push button, & LED

Function:

1. Once a customer finishes his/ her consultation with the customer service personnel. The person will ask the customer to rate the customer service by pressing on the push button.

2. When the customer press the push button for 1s (e.g. Average). It will appear on the LCD screen, LED will ON for awhile and captured at the data log.

3. In the end of the month, the officer in-charge can tabulates it using excel sheet.

Benefit:

1. Reduce paper work

2. Convenient and more I.T savvy

Figure 4 Data Log Captured with time frame

Short Video Clip:

Figure 5 Video clip of the system

Please contact me at:

011-38660076 or yhckelvin@gmail.com

For more information on the source code and hardware