For some unknown reason PC's are dumber than smartphones. This device does help to make PC's smart by adding sensor and automation. As you might have noticed, computer's don't have any system to control brightness automatically. So I made a little device to save me from the labor. Components: Arduino Pro Mirco -1x 10k Ohm Resistor - 1x LDR - 2x The PCB from PCBWay Principle - How It works: It's always good to discuss about what we are making before jumping. A little theory is good enough to jump start. I needed some kind of sensor to detect light intensity. LDR or light dependent resistor is best suited for that. LDR will face the person (just like phones sensor face front/person) and get light intensity data. The data will be read by Arduino. That's analog data ranging from 0 to 1024. If we map the values (0 - 1024) we can control brightness. I tried using Arduino 'keyboard' library to press function buttons using Arduino. That doesn't work and it
Wireless Mood Meter Suppose your mood changes so fast that people can't cope up with it. You feel sad but people do something that makes you more sad. If only they knew what you are feeling right now!Behold, I present you the Wireless Mood Swing Meter!! Place it where everyone can see it, tap on your phone and input how you feel, the meter dial will point to an emoji and show others what you feel. Now people will behave accordingly. Wanna make one? Let's start. Watch the video alongside. Step 1: Parts You'll Need Electronics: Arduino Nano (Any board will do) -1x HC05 Bluetooth module -1x Micro Servo sg90 -1x Multi functional robot PCB - 1x [ link ] Powerbank or 5v 1 Amp power source - 1x Others - PVC sheet - 1 piece Hot Glue and Glue Gun Mood meter (paper printable) Step 2: Principle: How Will It Work? Good questions lead to good answer. Before making anything you must have a clear understanding of what you are going to do. So, the idea is, we will make a mood meter with em