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Andrew, Just to let you know I have it working at about 2-3meters, so I can just get away with it. The combination of your suggestions adding the capacitor across the relay and I rearrange the power supply, the relay module and the receiver module this improved it, but the strange thing which really...

thanks for your help.
just to let you know before I used your Power Supply Module I used 3 AA batteries in series making 4.5v supply.

thanks for your help.
just to let you know before I used your Power Supply Module I used 3 AA batteries in series making 4.5v supply.

hi all parts have been purchased from hobby components, and I have tested all which have suggested. the output from the PT2272 is 5v and holds that 5v until I release the button, but as soon as I connect the relay up it pulses. An interesting point you made was the capacity of my supply do you know ...

Hi I did submit a reply earlier today but I must have done something wrong as it appears not to be on the forum. to answer your question it is connected as your wiring diagram, except I have connected the +ve of my battery to the red wire. At the moment I have 9v supply on the PT2262 and 5v on the P...

it is wiring is the same as your diagram except obviously I have connected the +ve from my battery to the red wire on your diagram (as no power input is shown). at the moment it is on a 9v supply with the receiver as I said before on a 5v supply. I have brought a second relay from you to prove it wa...

Hi can anyone help! I needed a remote transmitter (TX) and receiver (RX) to operate a relay to put a full short on a control box. Hobby components supplied me with PT2262 and PT2272 433mhz tx & rx modules and a Arduino 5V Relay which I ran at 4.5 volts. I expected that while I pressed the TX button ...