RF remote control

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Hello Guys,

I had to make a RF remote control.

Transmitter has 7 switches. When a switch is pressed, the transmitter must send a specific frequency.

Typically we need to split from 500Hz to 2Khz for 7 switches.

This transmitter remote will be powered by 3v battery. Please note the stand by current must be as low as possible to preserve the battery energy.

Receiver: This will be powered from 5v to 12v. It is your choice. It will be ON all the time and the frequency must be received when the transmitter sends the signal. (I have separate circuit which will process this frequency.)

Important Note: I have already made transmitter and receiver using standard RF TX with a uC, RX Module .

But it did not work as expected.

Why?: I have used pic controller that will always be in stand by mode (<1uA). When the any switch is pressed, uC will wake up and turn on a port pin and the RF module is powered as it is tied to the port pin. This is were the problem happened. The port pin could not drive the RF module properly. It gives < [url removed, login to view] and the RF module fail to work. It needs proper 3v. even though the current is <20ma, but pulsed current is more by RF TX module. Also the decoupling caps are giving pulse current while switch on.

I need a solution to solve this..(Can not use a buffer.. Transistor has vce sat and Mosfet will not work at 3v Vgs.. need some other solution)

Or

Suggest a new circuit, workable solution

Please, Please, Please bid only if you have experience on this topic.

If i get a right tech-pair, i have lot of projects to do together.

Aathmike

Skills: C Programming, Electronics, Microcontroller, PCB Layout

See more: why programming is important, vgs, VCE, tech programming, remote programming, remote pair programming, remote control programming, programming tech, programming remote control, programming remote, programming a remote, pic programming in c++, pic programming in c, pic c programming, pair programming, pic remote switch, c sat, Rx, remote tech, pic programming, electronics rf, electronics projects, 20mA, control pin, tech solution

Project ID: #4173759

14 freelancers are bidding on average $64 for this job

pcbdcs

Hi, I can do this.

$45 USD in 1 day
(10 Reviews)
3.3
ExpressElectro

Hello This is basic task, so i will not charge you too much for this. I have master degree in electronic and i offer you professional help. You need to provide me source code and some more info that i will require. More

$50 USD in 2 days
(4 Reviews)
3.2
theenggprojects

I am ready to start the job

$200 USD in 5 days
(4 Reviews)
2.3
clionetech

Clionetech is a team of professional software and hardware engineers. We provide design service from circuit design, pcb layout, pcb fabrication, mcu coding, components sourcing to prototype assembly. Please feel free More

$100 USD in 10 days
(0 Reviews)
0.0
comienz

Can be done with small modifications in ciruit with 2.4GHz RF Module. I have already done that..

$100 USD in 10 days
(0 Reviews)
0.0
SurangaDimuthu

Hi, I can really help you.Check my Personnel Message.

$50 USD in 2 days
(0 Reviews)
0.0
ashishsharma6899

please send me the synopsis of this project at my msg.

$40 USD in 7 days
(0 Reviews)
0.0
vw7952988vw

I would use DC/DC booster,something like UPA1700 from NEC. Hope this was helpful.

$30 USD in 3 days
(0 Reviews)
0.0
brendarojas

Hi, I'm a Electronics Engineer, and I have experience in electronics desing of proyects. I have a couple of ideas to solve your problem. Thank you

$45 USD in 5 days
(0 Reviews)
0.0
luckyking2013

My full-time job is developing RF remote product using 433Mhz and 2.4G technology, i can help you to solve this problem

$30 USD in 7 days
(0 Reviews)
0.0
zain995

LETs start

$32 USD in 5 days
(0 Reviews)
0.0
polarlab

Hi I think you can use FET's with low gate threshold voltage to switch on your RF module. I suggest Vishay. For P-channel: SIB417EDK. For N-channel: SIB414DK. BR Hans

$30 USD in 1 day
(0 Reviews)
0.0
parmarjp

I can help you with this project.

$50 USD in 5 days
(0 Reviews)
0.0
progsel20

HI, I hope we are thinking to send few KHz via a RF modulation (amplitude or phase...). About you problem it should be necessary to know the RF circuit (please let me know your drawing), but if you need to supply m More

$100 USD in 4 days
(0 Reviews)
0.0
adnan012

hi, I can help you.

$150 USD in 15 days
(0 Reviews)
0.0