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  1. HarryA

    Need some help finding a circuit board for little project with LEDs. Newbie

    On third thought you only need the Arduino UNO.
  2. HarryA

    Need some help finding a circuit board for little project with LEDs. Newbie

    Your best beat is (via amazon.com): Elegoo UNO R3 Board ATmega328P ATMEGA16U2 with USB Cable Compatible With Arduino UNO R3 10.86$ J-Deal® 8-channel 5V Relay Module Shield with Optocoupler for Arduino UNO 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi 8.49$ On second thought are those two...
  3. HarryA

    New to this forum

    Well to be more helpful. These work well "Home Security Driveway Alarm" I put out dried cat food in the evening and it alerts me when my animal friends come...
  4. HarryA

    New to this forum

    Mount the feeder on a cylindrical pole and then mount a slinky hanging down from the top of the pole. It will delivery the squirrel back to the ground. Mount a mercury tilt switch to the inside of the mailbox door; connect it to the dog trainer device remote, You wear the collar then you will...
  5. HarryA

    Rockmite Supper 51

    Are you alluding to the "51 Super Rock Mite" ?
  6. HarryA

    Stupid nut!

    Okay what makes the stupid nut rotate? see:
  7. HarryA

    VS1011 mp3 decoder component (malaysia) *urgent

    Ebay.com "50 results for VS1001" you can get directly from China where they are made. China can not be that far from you?
  8. HarryA

    Solar Charger project?

    see: "solar power tutorial" on youtube.com
  9. HarryA

    12 v to 48 v boost converter for 48 v electric bike

    Thanks. Are there more efficiency circuits for DC to DC inverters than the class B amplifier type? The type that uses a pair of transistors feeding a center tapped transformer. For Akbar's 48 volts one would need about 68 plus volts into a bridge rectifier?
  10. HarryA

    12 v to 48 v boost converter for 48 v electric bike

    What do you all think of this converter? https://www.amazon.com/dp/B01HEXJUX8?psc=1 Like Akbar I am interested in running a 40 volt motor off 12 volts (cordless chainsaw)
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