The four-channel remote control sports car diy kit is composed of a dedicated chip SCTX2B\RX-2B, which is a pair of CMOS integrated chips designed for remote control car applications. SCTX2B\RX-2B has 5 control keys for controlling the action of the remote control car (such as forward, backward, turn left, turn right and rotate functions). This kit is designed with four functions except rotation. The transmitter feels comfortable in the hand, has sensitive control, fast receiving response, and is easy to make. It is highly interesting and suitable for electronic welding training or electronic enthusiasts.
Kit parameters:
Power supply voltage: transmitting 3V, AA battery*2, receiving 4.5V, AA battery*3. (Battery needs to be purchased separately)
Dimensions: 280*135*110mm
PCB board model:wk-56-26
Circuit principle:
By connecting the 5 functional terminals to ground respectively, 5 different encoding signals can be transmitted. Among them, pin 7 outputs a coded signal with carrier, which is suitable for infrared remote control output; this pin is not used in this kit. The output of pin 8 is a signal without carrier frequency code, which is suitable as a modulation signal for wireless remote control. Pin 8 directly cooperates with RX-2B. Corresponding encoding and decoding circuits can be formed. Changing the external ROSC resistance of pins 11 and 12 can change the carrier frequency and the output of the encoded pulse waveform. The value of ROSC can range from 100K-500K. The 10-pin emission status indication terminal can indicate the emission status by connecting an external light-emitting diode. The coded signal output by pin 7 or 8 is amplified by the post-stage RF circuit Q1 and Q2, amplified by infrared or antenna, sent out, and then decoded by the matching RX-2B. SCRX-2B is a receiving chip matched with SXTX-2B.
Reviews
There are no reviews yet.