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hope the image upoads,it said so. I clicked on "add image", opened it, clicked on "thumbnail" and upload I know I have how to use fototriacs but I have a bunch of these thought I should use them.
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Hi, Im usng the attached circuitto control an AC motor with a uController. The transistor is an opto, an ICLT6 chip. I tried ith a 100 ohm resistor but the voltage across MT1 and MT2 measures 50v AC. I lowered the resistor to 27 ohm but still MT1-MT2 voltage is 25. The dc voltage of the emitter...
Right, Audoguru. If both switches are pressed bothtansistors conduct and short the base of Q3 to ground.That turns off Q3 so the LED is OFF. If any of the buttons are openthe LED is ON He needs a current limiting resistor to protect the LED. Tariq circuit works but both buttons have to be...
Hi; y refrigerator defrostor module gets stucked. I can make an electronic one but I have no idea about timing. I suppose it could be 15 minutes each day? Help.
Come on kpax; RJM´s cicuit works fine. I know because I have one working for years! although I rectified first. If you need more protection just use an optoisolator circuit.
Whichever module I use will have to be imported; I´m investigating the frecuencies our carriers use, try to hack an old cell phone and understand hackaday´s circuit in the meantime. Please let me know how you´re doing and thanks.
I can´t get it locally,but I suppose it would work. I´ll check, make sure which bands work here and come back.
What I need is to turn ON and OFF my pump by cell, with security ( only a few numbers should be received )
I´m checking this
**broken link removed**...
Hi, I´m at Venezuela where I can´t get the GM-47 module. Can you recommend a reliable supplier?
please. Lucian says the diagram has errors; Did anyone get this working? I wouldn´t like to blow my module if the circuit is wrong.Thanks.
Rectify with a diode, drive an NPN transistor through a resistor with Emitter to ground. 5v through a resistor to collector, where you´ll have a 60 Hz. square wave. Sorry, I can only draw with EAGLE and it´s not allowed. Very big shame.
Hello everybody. I want to control a few relays at about 1km ( 1000m ) away but the line of sight is blocked by trees. I´m working on the 433MHz tx/rx modules, like the TWS/RWS434 with encoder/decoder ICs, because I´ll be able to have a few receivers with just one transmitter.
I doubt that the...
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