xavierp_00
New Member
Hi, i'm working in a wireless sensor project and I have to design and build a small, low-power receiver for 433 Mhz.
I found a couple of circuits in the net but I'm kind of lost, what I need is to select a right antenna (small size and indoor range about 30 ft, maybe less), and to build an amplifier. For that i was thinking in using the envelope detector, and then a digital comparator (like a max9119) so that way I sould be able to use that signal at the input of my sensor. I don't know if this is a good idea, or which components do i have to use. Thanks for your help!
PD: I can only use a 3V small battery for my design!
I found a couple of circuits in the net but I'm kind of lost, what I need is to select a right antenna (small size and indoor range about 30 ft, maybe less), and to build an amplifier. For that i was thinking in using the envelope detector, and then a digital comparator (like a max9119) so that way I sould be able to use that signal at the input of my sensor. I don't know if this is a good idea, or which components do i have to use. Thanks for your help!
PD: I can only use a 3V small battery for my design!