Topics created by Ron

@mfalkvidd the one that stops at 2.7v I once broke my head over it, then it saw I was looking at the automotive datasheet...

@Ron said in 433MHz Transmitter FS1000A stops working when connecting antenna: I could try it with a cable of length 170mm but I am not sure if that is anything >else than with the antenna. Yes you should experiment to see. That is the best way to find solutions when you are a "Maker" Does the transmitter also needs more voltage when an antenna is connected? Sorry I am not an RF engineer so am not sure on that, although I would have thought you would achieve best results with an antenna of the correct length connected. As i said previously I know they work better with a higher voltage. From memory (you should check) I think they are good up to 12v At the moment i just connected it to the 5V output of the arduino. Maybe that is >too low for the transmitter with antenna. You should use a multimeter to check the actual voltage. The clone arduino's are sometimes prone to be a bit low on their 5v line as are some computer usb ports, especially if you have a few other devices (keyboard , mouse, speakers etc.) connected as well. Power problems are a common source for causing trouble I always try and power my nodes from a dedicated supply to eliminate this issue. I ordered some boost converter to test with higher voltage. Maybe that helps a >bit Your simplest solution may be to power the test node from a 9v battery. You can supply 9v directly to the arduino VIN pin and also 9v directly to the FS1000 power pin instead of the 5v line. This will at least let you know if it is a power issue. It is also not unusual for these type of remotes to fire off a burst of on or off signals instead of just one transmission. This gives them a better chance of getting the message through. So if you are not doing that already you could try sending a few times separated by around a 10 ms delay. You may need to experiment a bit to see what works best. I know one remote I was working with sent the message 6 times separated by 13 ms.

any updates on this?