ad7020 chips
I am looking for a transmiter and a receiver in 433Mhz with a
cheap way.
I do not need hi speed.
i am also looking for them, created the thread:
https://www.edaboard.com/ftopic293147.html
and here is the store where i suggest you to buy it:
http://futurlec.com/Radio.shtml
it is very cheap online shop, i did buy things from them. and the delivery is just 5S
I used one of there products and wasn't very pleased. It didn't to perform as well as expected.
Probably not cheapest, but good performance, based on Chipcon/TI-IC
http://www.lprs.co.uk
i am looking not only for modules but for ic like chipcon
does anyone use CC1100?
or does anyone use RFPIC12F275?
Search for a transceiver in this frequency, it should be easy to find. From what I know, hopeRF, wavecom and SIM are quiet cheap.
what is your problem with this PIC ?
can explain it
Is this for mass production ?. If so I can help !. I designed a 433 MHz receiver for some 19 USD cent ! Transmitter is a little more 50 cnt USD.
PaulHolland it is for mass production,
can you send me your designs?
Added after 1 minutes:
haerifar
i do not have any problem with microchip but
i did not use it yet.
Have you use it
Does anyone have a schematic with Rfpic12f675F with FSK modulation
cc1100 is a good choice. Also, accel semiconductor has AS6801 transceiver can work at 433MHz.
How much does the AS6801 cost and you have a datasheet ?.
For rfPIC16F675F look here:
AN238 - Tire Pressure Monitoring (TPM) System (microchip website)
http://www.microchip.com/stellent/id...cName=en010385
As a basic design decision, you should know if you need multi-channel capability. Then only synthesizer based transceivers, e. g. Chipcon are to choose from, rfPIC would be excluded. Said AS6801 has audio features, wouldn't expect it as a candidate for basic data communication, unless it has an extraordinary pleasant price.
nRF 401 FSK transciver seems to be good for
that ..
Regards
Raduga
nRF401 is a dead product. You have to look at nRF905
check wit tws434 n rws434 ics
Use super-regenerative method with an op huplse shaper at demodulation out.
Look here http://patenttrade.net/picoffer.htm for the RR4 Receiver module at S6.95 USD a transmitter is also listed for S5.95 but I can help you with a diagram and outlay using a BFR93 transistor and a 433 SAW filter, note the outlay is very important to limit harmonics, if I can help PM me and I will upload the goodies
Hi
Try Analog Device family
AD7020-1
Almost Everything on-chip!
David
y can do a vco as the transmitter,maybe this is the cheapest bu the performance is poor, or y can choose the NRF403 as the transceiver of the 433M