The following circuits show a remote control system with ‘self learning feature’ for more information
please see Datasheet DS600
Transmitter Circuit
3.3V
Antenna
SW1-4
1
2
3
4
A0
A1
A2
A3
RF600E
Vcc
LED
DATA
GND
8
7
6
5
3.3V
2K2
1
EN
ANT
6
10K
BC848
2
IN
3
GND
5
GND
4
Vcc
RTFQ1-XXX
Receiver Circuit
Vcc
1KΩ
13
14
4
15KΩ
L
FM -RRFQ1
12 3
7
11
15
Status
LED
Option
Link
12
17
Sleep Vcc Vcc OP1
LKIN
O/P 1
O/P 2
O/P 3
O/P 4
Transmitter
Low Battery
Serial Data
Output
Vcc
18
OP2
1
OP3
OP4
M
2
3
11
10
LRN
RF600D
LB
1KΩ
Learn
Switch
9
IN
ECLK
SD1
7
GND
5
22KΩ
Prototyping Hints:
It is essential when building any Low Power Radio System that you have a ‘clean’ DC power source. Typically
the ripple voltage should be less than 10mV Peak to Peak. Normally a 470uF decoupling capacitor is sufficient
de-coupling for an AC derived DC power source.
Never place a Transmitter or Receiver directly into Vero-Board or any similar prototyping board. This will
severely restrict the range. Rather, use small lengths of wire from the prototyping board to the pins of the
Transmitter or Receiver.
A useful antenna, for testing purposes, for both the Transmitter and Receiver on 433MHz is to use a piece of
wire 17.3cm long (23.8cm at 315MHz) soldered directly to the antenna pin.
For more information or general enquiries, please contact;
RF Solutions Ltd.,
Unit 21, Cliffe Industrial Estate,
South Street, Lewes, E Sussex, BN8 6JL. England
Tel +44 (0)1273 898 000
Fax +44 (0)1273 480 661
Email sales@rfsolutions.co.uk
http://www.rfsolutions.co.uk
RF Solutions is a member of the Low Power Radio Association
All Trademarks acknowledged and remain the property of the respected owners
Information contained in this document is believed to be accurate, however no representation or warranty is given and R.F. Solutions Ltd. assumes no liability with respect to the accuracy of such
information. Use of R.F.Solutions as critical components in life support systems is not authorised except with express written approval from R.F.Solutions Ltd.
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