RF transmission and reception

rohit_jun22 · 2012-08-04T01:49:45+00:00

hi, iam building a circuit that requires transmission of data by wireless. i have to transmit serial data by RS232 wirelessly from one controller to another controller. i want help in building that wireless transmitter and receiver at low cost. Any advice ??

RF transmission and reception

rohit_jun22

Member

Updated: Oct 26, 2024

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hi, iam building a circuit that requires transmission of data by wireless. i have to transmit serial data by RS232 wirelessly from one controller to another controller. i want help in building that wireless transmitter and receiver at low cost. Any advice ??

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[Prototype]

Member • Aug 4, 2012

If you can eliminate one controller, you can have your data sent via the HT series encoder and decoder. Otherwise, if you're strictly looking for RF communication directly between microprocessors, its possible as well, but little difficult as compared to using HT series IC's.

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rohit_jun22

Member • Aug 4, 2012

did not get you...some more details please 😀

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[Prototype]

Member • Aug 4, 2012

rohit_jun22
did not get you...some more details please 😀
HT12E & HT12D are the encoder and decoder chips available that can be used to send wireless data, either via RF or Infrared. These IC's have data pins which accept as well as give digital data directly.

If the data you're sending is raw like sending pressed key from remote or something, then you can remove the microcontroller from the transmitter side.

Please tell your exact application & the controller you're using for me to explain it better.

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rohit_jun22

Member • Aug 4, 2012

i am using an ARM controller LPC2148 to transmit some control signals to a motor located at a different location controlled by another microcontroller. It wont be possible to remove either of the microcontrollers. Both are necessary

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[Prototype]

Member • Aug 4, 2012

I am sorry, don't have idea about LPC2148. But I am sure you could still use those IC's (yes will increase hardware, but you can keep it as alternate solution).

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Prakash Parmar

Member • Aug 4, 2012

rohit_jun22
hi, iam building a circuit that requires transmission of data by wireless. i have to transmit serial data by RS232 wirelessly from one controller to another controller. i want help in building that wireless transmitter and receiver at low cost. Any advice ??
For simple Circuit you just use HT12E-RF Transmitter(TWS 434a)-RF Receiver(RWS 434a)-HT12D.

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rohit_jun22

Member • Aug 5, 2012

can it transfer serial data from RS 232? what is the approximate cost of the transmitter and receiver?

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Prakash Parmar

Member • Aug 5, 2012

i worked with 25pin parallel port and its works on it... if you able to glow led using PC then i think it is possible.... and cost is around,
HT12E=50 Rs.
HT12D=50 Rs.
Transmitter=250 Or 300 Rs.
Receiver=350 Rs.
Reference
<a href="https://in.element14.com/quasar/qam-tx1/module-transmitter-am-433mhz/dp/1304024" target="_blank" rel="nofollow noopener noreferrer">QAM-TX1 - Quasar - RF Module, AM ASK Data Transmitter, 433 Mhz</a>
<a href="https://in.element14.com/radiotronix/rcr-433-mpr/module-rf-ask-ook-rx-433mhz/dp/1565152" target="_blank" rel="nofollow noopener noreferrer">RCR-433-MPR - Radiotronix - RF MOD, RX, ASK / OOK</a>
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<a href="https://in.element14.com/holtek/ht12d/ic-remote-control-decoder-dip18/dp/1211514" target="_blank" rel="nofollow noopener noreferrer">HT12D - Holtek - Decoder, 2/12 Series, CMOS</a>

also look at this...
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ankita shukla132

Member • Aug 6, 2012

[Prototype]
HT12E & HT12D are the encoder and decoder chips available that can be used to send wireless data, either via RF or Infrared. These IC's have data pins which accept as well as give digital data directly.

If the data you're sending is raw like sending pressed key from remote or something, then you can remove the microcontroller from the transmitter side.

Please tell your exact application & the controller you're using for me to explain it better.
if we use 8051 microcontroller

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Prakash Parmar

Member • Aug 6, 2012

ankita shukla132
if we use 8051 microcontroller
my last year simple project.

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