Please would you have a look at the attached circuit (hand drawn, sorry)
It's intended to drive a lamp using a remote control unit. The unit is this one
http://www.ebay.co.uk/itm/433MHZ-4-...6827?pt=UK_Gadgets&hash=item4ab87ca6db&_uhb=1
I want to run the lamp and remote on different circuits and isolate them using a 4N25, and to drive the lamp using a mosfet.
The remote unit toggles, so that pin 7 of the rx goes high when the tx button is pressed and stays high until it's pressed again. This all works fine. However, the lamp only stays on so long as the button is pressed, i.e. it does not toggle.
What am I doing wrong please?
It's intended to drive a lamp using a remote control unit. The unit is this one
http://www.ebay.co.uk/itm/433MHZ-4-...6827?pt=UK_Gadgets&hash=item4ab87ca6db&_uhb=1
I want to run the lamp and remote on different circuits and isolate them using a 4N25, and to drive the lamp using a mosfet.
The remote unit toggles, so that pin 7 of the rx goes high when the tx button is pressed and stays high until it's pressed again. This all works fine. However, the lamp only stays on so long as the button is pressed, i.e. it does not toggle.
What am I doing wrong please?
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