RF circuit design,RF circuit PCb design,RF/RC remote control
circuit schematic design, CN China
RF product PCb repair, ,electronic circuit schematic design,
shenzhen, cn China
-- Remote Control Schematics --
Visit our new page for complete schematics of infrared, RF
remote control, Holtek encoder/decoder ICs, and relay control
Below are schematics & projects using the TWS/RWS RF
modules: 8-Bit Transmitter Schematic: Click HERE
8-Bit Receiver Schematic: Click HERE
Simple 5-Switch, 4-Bit Transmitter: (shown below)
4-Bit Receiver For DC Motor Control: Click HERE
Simple Relay Control Circuit: Click HERE
Freddy -- The Robot Bug Killer: Click HERE
Ruf-Bot -- RF Remote Controlled Robot: Click HERE
BASIC Stamp Wireless Communications: Click HERE
Receiver circuits are using NPN transistors. Substitute for
PNP transistors if necessary.
Question: Can I use the TWS-434 & RWS-434 RF modules
for serial communications..?
Answer: You bet. Click HERE for a complete project using
these modules to control a hobby robot using a PC joystick
with PicBasic & asynchronous serial control techniques.
Question: Where can I buy the TWS-434 & RWS-434 RF modules..?Figure
1. RF 4 channels remote transmitter circuit
This is a very simple RF transmitter circuit that consists
of the Holtek HT-12E encoder chip and AM 418MHZ-transmitter
module (WZ-X01). Using the hybrid RF xmit/receive modules
make building the RF remote control a lot easy.
The transmitter can be powered with any voltage from +3 to
+12V. The total current consumption is less than 5ma. Depending
on the supply voltage, you may need to select a difference
resistance value for the oscillator resistor R1. The recommended
oscillator is Foscd (decoder) = 50 Fosce (encoder). See data
sheet for more details.Where can I get a schematic diagram
for a simple RF remote control circuit?
I need a simple remote control circuit just for turning on
and off a LED. In fact, I have searched for appropriate ICs
but since I am new in electronic circuit design, I only found
some 5-functions transmitter and receiver ICs. So, can anyone
give me some directions?
The individual security code of the transmitter is preset
by dip-switches S5, up to 256 combinations.
When any of S1-S4 is pressed the /TE pin is pulled low, and
power is applied to both the encoder chip and transmitter
module, the encoder then starts scanning and transmitting
the status of the 12bits address and data serially.
Answer: Right HERE........
The TWS-434 and RWS-434 are extremely small, and are excellent
for applications requiring short-range RF remote controls.
The transmitter module is only 1/3 the size of a standard
postage stamp, and can