Digital Wall Calendar Touch Screen

Picture of Digital Wall Calendar Touch Screen

The transistor-powered IR transmitter will be built with the transistor, IR LED, jumper wires, prototyping PCB and two resistors listed in the materials step #2 . Additionally, you'll need a breadboard to prototype your IR transmitter. Wire the components as shown in the diagram on the breadboard. Once you are happy with your circuit transfer it to the prototyping PCB and solder in place. Use a pair of jumper wires to extend the IR LED from the PCB, do not solder the IR LED directly to the PCB.

Use another 3 jumper wires as your connections to the Pi. You can put the circuit to the side for now but if you want to test your IR transmitter you first need a functioning Raspberry Pi. You will have to skip ahead to Steps 16-17. These steps explain how to setup your PI and how to connect the IR transmitter. Once complete you can return to this step. To test the IR transmitter circuit we can blink the LED with a script.

Download the LEDblink script and move it to Pi's home directory. Replace *YOURPATH* below with the path to where the script was downloaded to. In the terminal type: mv /*YOURPATH*/LEDblink /home/pi/ Then make it executable by running chmod +x /home/pi/LEDblink Run the LEDblink script /home/pi/LEDblink The IR LED is not a regular light-emitting diode and does not emit visible light but you can use a smartphone camera.

to see it blink. Point the camera at the IR LED and look at the screen. If the circuit works, you should see the IR LED blinking. Here is the LED blink script incase you are unable to download #!/usr/bin/python import RPi.GPIO as GPIO import time GPIO.setwarnings(False) GPIO.setmode(GPIO.BCM) GPIO.setup(22, GPIO.OUT) while True: GPIO.output(22, True) time.sleep(1) GPIO.output(22, False) time.

sleep(1) Adapted from Raspberry Pi IR remote LEDblink script

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Now we’ll install a browser that actually displays your google calendar properly. Iceweasel is a derivative of Mozilla’s Firefox, to install enter the following command.sudo apt-get install iceweaselType y and hit enter to complete download and install.Once complete Iceweasel should pop up in the menu under internet, open it so we can start configuring. First open up your google calendar and save the password in case you get logged out at some point.

Now set google calendar as your start page.Now we need to disable restore pages after crash in case of power outage google calendar might not show up by itself which is annoying if you have no KB/Mouse connected.Type in about:config in the address field and hit enter.Now find the "browser.sessionstore.resume_from_crash" line and double click to change it to false.Hit the F11 key to go fullscreen and hover your mouse at the very top of the screen then close the browser once the x appears in the top right corner.

Re-open the browser and it should open to your google calendar and still be full screen.We also want Iceweasel to start automatically so we’ll need to change the autostart options.sudo nano /etc/xdg/lxsession/LXDE/autostartadd @iceweasel to the listnow press ctrl+x the Y and enter to save the changes

Wilma Lawrence

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