Tell us about yourself!
- dnfh1949 commented on gzumwalt's instructable WiFi Kit 32 NTP Clock
- dnfh1949 completed the lesson Tying Off to Finish Sewing in the class Hand Sewing Class
- dnfh1949 commented on VijendraK's instructable How to Make Automatic Door Opening Using Ultrasonic Sensor HRSC04View Instructable »
Even more puzzled! Surely the code and the physical connections have to match? So if the code says trigPin = 7 then the trigPin on the U/S module must be connected to digital pin 7 of the Arduino? (equally having it connected to pin 13 of the Arduino would be fine if I changed the code to "const int trigPin = 13;"). is this not correct?
- dnfh1949 commented on VijendraK's instructable How to Make Automatic Door Opening Using Ultrasonic Sensor HRSC04View Instructable »
I am a little puzzled. Your code has trigPin on digital pin 7 (as output) and echoPin as digital pin 4 (as Input). But your schematic shows the ultrasound module connected to digital pins 13 and 12 respectively. Can you explain please?
- dnfh1949 commented on ASpace25's instructable DIY Bluetooth SmartPlug
Interesting project!Possibly I'm a bit new, but I couldn't see where the Arduino code was. Any clue?
View Instructable »Ah. I'd opened the link and saw the three folders but assumed it would be in Application. Just found it in DIY_Bluettoh_Smartplug!
- dnfh1949 commented on NguyenN90's instructable Make a Contactless SwitchView Instructable »
Sounds really interesting and I will try it . If you are interested (ignore this if not!) I think there are only two very small "errors" in your English:"1. A distance sensor have 4 pins: " '1. The distance sensor has 4 pins.' "You can just take the mine to use it." Not quite sure what you mean, but I think it is 'Use my code is you wish.'
- dnfh1949 completed the lessons Your First Experiments and Tools and Materials for Arduino in the class Arduino Class
- dnfh1949 completed the lesson Tools and Materials in the class Wearable Electronics Class
- dnfh1949 completed the lessons Welcome! and Tools and Supplies in the class Raspberry Pi Class
- dnfh1949 commented on WolfKodi's instructable Simple Light Detector with Sensitivity Control
I would like to modify the circuit with a proximity reed switch so that the LED does NOT come on (or goes OFF) when a magnet gets near the proximity switch. I think I can just put the reed switch in series with the LDR. Would that work?
View Instructable »That should have been "in parallel"!! So that when the reed closes it shunts the +ve pin of the comparator (pin 7) to earth. But does it need a resistor in series with the reed switch to limit any current (I assume the value would be about the same as the dark resistance of the LDR)?
- dnfh1949 commented on Er Varun Goyal's instructable Dark Sensor ( light sensor / automatic street light )View Instructable »
Could the circuit be modified to work the other way round, so that it switches ON in sunlight and OFF in dark? I suspect its v. simple, but so am I!
- dnfh1949 enrolled in Arduino Class
- dnfh1949 completed the lesson Welcome to Arduino in the class Arduino Class
Apologies, a rather Newbie question!I don't know where to download the library or .ino file to! 'Manage Libraries' seems to put them into:/Users/dnfharris/Documents/Arduino/libraries/***but that doesn't seem to be the correct path (or I haven't set the correct path). Some .ino files seem to work better from /Users/dnfharris/Documents/Arduino/***I get many messages saying (eg for a U8g2lib library) "U8g2lib.h: No such file or directoryInvalid library found in /Users/dnfharris/Documents/Arduino/libraries/U8g2: no headers files (.h) found in /Users/dnfharris/Documents/Arduino/libraries/U8g2"Is there a guide anywhere as to how to set paths or where I should put new libraries?