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RC CAR "RoadSter"
Arduino Temperature and Humidity on 7 Segment Display
DIY Flip-Flop Multi Vibrator Circuit
could u plz upload the library for the above code????
Mains Hum Detector / Static Electricity Detector
DIY Arduino Solar Tracker
ARDUINO PIR Motion Detector With 16X2 LCD
Smart Phone Controlled LED Lights using HC-05 and Arduino UNO
LED Pen Torch
Great work, thank for sharing. Please, How can i do to increase the sensibility of LDRs and the speed of servo?
DIY Dark Sensor
Is it possible that I can hook up a flashing light. If so what code should i use
Yes, the difference is how sensitive is gonna be the LDR
Will it work with a 10k ohm or a 330ohm resistor?
Buzzer Alarm Using LDR And Arduino
can it work for a 220 ohm resistor
DIY Mini LED Torch
Arduino Temperature and Humidity Display With 7-Segment Display
Hi guys, I see that you use any current limiting resistors in series between the micro and the 7 seg. I was taught that this was good practise and see that the resistors are missing on a few of the mux' ing Instructable. Why? - Clumsy with big fingers
I agree... Most "beginner" Arduino projects are simply "forget" the necessity of current limiting resistors. (Meanwhile many sources states that the lack of these are not a real risk at all.) BTW, I suggest to use 220 R (or similar) resistors on each cathode line (pins D2~D8). For the next step, a shift register may help a lot to use less pins and better coding (MAX 7221/7219 for example). - Professzore
Hi guys, I see that in this Instructable and a few others , on mux'ing, there are no current limiting resistors between the micro and the display. I have thought that that it was good engineering practice to pretect the micro with resistors, should something go wrong. Comments please. - Clumsy with big fingers
I bought the sensor for a hydroponics project but was at a loss where to start. Now I know! Great ible!
Hi, nice project, but I have one question, how can I connect multuple leds on this circut? I want to make a small Christmas-like village with lights in and out of houses (street lights) and I want them all light up when it is dark... Is it possible?I want to use 12V power supply. Can I somehow connect all LEDs paralel, and then connect them as one in this circut? And which resistors should I use? Thank you
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