{"title":"433Mhz RF Transmitting Receiver Module","handle":"433mhz-rf-transmitting-receiver-module","url":"/products/433mhz-rf-transmitting-receiver-module","description":"A simple 433 MHz RF link kit consisting of a transmitter and receiver pair, commonly used for basic wireless remote control and data transmission between microcontrollers. The ASK (Amplitude Shift Keying) modulation makes these modules easy to use with popular Arduino libraries such as VirtualWire or RadioHead.\n\nThe transmitter accepts a wide input voltage range (3–12V), with higher voltage delivering greater transmission power and range. The receiver outputs digital high/low signals that can be read directly by a microcontroller.\n\nKey Features\n\n\n433 MHz ISM Band – Licence-free frequency for short-range wireless communication\n\nASK Modulation – Simple amplitude shift keying, compatible with VirtualWire and RadioHead libraries\n\nWide TX Voltage Range – 3–12V input; higher voltage increases transmission range\n\nTX + RX Pair Included – Both transmitter and receiver modules in one kit\n\nSimple Interface – Single data pin on each module connects directly to a microcontroller GPIO\n\n\nSpecifications\n\n\nFrequency: 433 MHz\n\nModulation: ASK\n\nTransmitter Input Voltage: 3–12V DC\n\nReceiver Data Output: High ~½ Vcc, Low ~0.7V\n\n\nIdeal For\n\nBasic wireless remote control projects\nArduino and microcontroller wireless data links\nSimple sensor data transmission\nLearning about RF communication\n\n\nPackage Contents\n\n1× 433 MHz RF Transmitter Module\n1× 433 MHz RF Receiver Module\n\n\n\nTip: For improved range, solder a 17.3 cm straight wire to the antenna pad on each module (quarter-wave antenna for 433 MHz). Use the RadioHead or VirtualWire library for reliable data transfer with error checking.\n","vendor":"Elecrow","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":3817,"title":"Default Title","sku":"EC-WRF43301R","price":1.97,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":118,"option1":"Default Title"}]}