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HarryA last won the day on April 11

HarryA had the most liked content!


About HarryA

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    Advanced Member
  • Birthday June 23

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    USA, Pennsylvania, Susquehanna Cty, Forest Lake
  • Interests
    Canoeing, woodworking, electronics, and gardening.

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  1. In the world of electronics what is a "landing deck"? I only know of landing decks on aircraft carriers and at the foot of stairs. I am guessing it is where you "land" your cell phone. I don't have a cell phone as we do have service where we live.
  2. Can the bad guys login via "Sign in with Twitter or Linkedin" or Anonymously thus avoiding the question?
  3. To start with those capacitors are 4700 microfarads (not 4.7) at 400 volts, not cheap. The resistors are 50 watt resistors. I would think the yellow leads on your transformers are taps, here unused. If you connect two of the output black wires together and measure the voltage across the other two you should get 220 volts rms. If not select a different wire for one of then. You must have at least a inexpensive multi-meter to work with. Beware these are high voltages and those large capacitors hold enough current to do you in!
  4. Something like what is the: "unit of capacitance"a five letter word". It is only a slight inconvenience at most for real people plus they only have to do it once. I set up a forum earlier this year and asked the local padding group if they wanted to use it but they decline. I did not do anything with it for a few months until I got an error message via an email. When I looked at it I had 6800 members, 90% were Russian. As I could only delete 30 members at a time it took awhile to get rid of them.
  5. I think your registering question is weak. I would ask a question that requires a Yahoo search. Perhaps the spam computers could not do that. Like what is Pi to the 6th decimal place?
  6. Why don't you all use the spam prevention tools? https://invisioncommunity.com/features/spam/ On my forum one must answer a question that any kayak or canoe paddler would know to register. Got read of the damn Russians!
  7. Without a circuit diagram it is very difficult to help you. You can find numerous videos on youtube.com related to "EGS002 " that maybe helpful. Good luck. Looks like I was born under the sign -V (I talk to much?)
  8. Hello, You could use a rs232 to ttl converter that you could connect to an Arduino microprocessor, You can get the converter for 1$, Arduino from 10$ to 30$ depending on the quality you want. Also you need a power supply about 10$ and a relay about 5$, Plus connectors. see: https://daverobertson63.wordpress.com/2013/06/02/serial-port-mini-rs232-to-ttl-converter-adaptor-module-board-max3232-with-arduino/ Many of us can help you with the software. I just got a large memory Arduino for 10$ that I am using for a talking weather station.
  9. Your circuit is basically incorrect. The DIAC , labelled TRIAC1, would never carry the load in that type of circuit! Only the gate current for the TRIAC. see the circuit at: https://www.electronicshub.org/simple-fan-regulator-circuit/ for example. Good luck.
  10. As only the CPU has access to the flash memory I would think it would not be possible to access the code. If it were on a separate chip you could read it with the right equipment. It may be better to develop your own code rather then try to reverse engineer this device. chip you
  11. If you look around on ebay or amazon.com for "audio amplifier board 5 volts" you may find something that would be helpful. Like: Icstation PM2038 2X5W stero audio amplifier board 5v USB powered adjustable volume. They are quite inexpensive. https://www.amazon.com/PM2038-2X5W-Stereo-Audio-Amplifier/dp/B01NABJTDJ/ref=sr_1_36?crid=2KDQ8EUT857T7&keywords=audio+amplifier+board+5v&qid=1558736268&s=gateway&sprefix=audio+amplifier+board%2Caps%2C184&sr=8-36 Sorry I can not be more helpful.
  12. BMS 18650 chargers are quite inexpensive off Ebay if you are not big on rolling your own. https://www.ebay.com/itm/3S-20A-12-6V-Li-ion-Lithium-18650-Battery-Cell-Circuit-BMS-Protection-PCB-Board/122183528602?_trkparms=aid%3D555018%26algo%3DPL.SIM%26ao%3D1%26asc%3D56826%26meid%3D93e40678e3dd4abe9ac93405e5253fca%26pid%3D100005%26rk%3D5%26rkt%3D12%26sd%3D253289010740%26itm%3D122183528602&_trksid=p2047675.c100005.m1851
  13. If you search on YouTube for " 3 phase electric motor control" you may find some information that maybe helpful.
  14. HarryA

    Rc car

    Perhaps the chip is over heating with to much current draw? Try connecting only two motors to see what happens. For the l298n chip itself: For the IO Peak Output Current (each Channel) – Non Repetitive (t = 100ms) 3.0A –Repetitive (80% on –20% off; ton = 10ms) 2.5A –DC Operation 2.0A TOTAL DC CURRENT UP TO 4 A
  15. I do not see your question; perhaps I am missing something
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