Wireless RF Kit 433 Mhz (Transmitter+Receiver)

The kit is consisted of transmitter and receiver, very popular for remote control.They can easily fit into a breadboard and work well with microcontrollers to create a very simple wireless data link.

Putting an antenna on either the RX or/and TX will further extend the range. The tiny copper wire (spiral) on the unit is an inductor, not an antenna.

Solder a wire  of length about 17.3cm to both transmitter and receiver into the antenna hole. This wire is your antenna (check photo below).

 Specification

• Frequency: 315 Mhz.
• Modulation: ASK
• Receiver data output: High – 1/2 Vcc, Low – 0.7v
• Transmiter input voltage: 3-12V (high voltage = more transmitting power)
• Transmitting range (work at 5V): 40m indoor, and 100m in open air

Pin Connection (Transmitter)

• Vcc:  3: 12 VDC
• GND: Ground
• ATDAT: Data (connect to arduino uart Tx)

Pin Connection (Receiver)

• Vcc:  3: 12 VDC
• GND: Ground
• DATA1: Data (connect to arduino uart Rx)
• DATA2: Data (connect to arduino uart Rx, use any of them)