Note: This kit include a Gravity: Digital Wireless Transmit Switch (433MHz) and a Gravity: Digital Wireless Receive Switch (433MHz).

The transmitter module and the receiver module each ship with 1 Gravity: digital sensor cable by default. If you need more, please click here to purchase separately.

433MHz is a certification-free frequency band in most parts of the world, please pay attention to local policies and laws and regulations when using it

When building a project that needs to transmit some simple signals wirelessly, have you been bothered by the any of the following problems: Bluetooth's cumbersome AT command configuration and high cost, Wifi's signal limitations and high power consumption, IR emission angle and inability to penetrate through the walls...

This Gravity: Digital Wireless Swtich might be just what you need! Based on 433Mhz RF communication technology, the module includes a transmitter and receiver and features the advantages of simple operation,strong penetration, and ultra-low standby power consumption. It is able to transmit digital signals and compatible with any controller that can read and write digital signals. These modules are used on a wide variety of applications that require wireless control, such as, remote control, wireless doorbell, wireless signal transmission, upgrading wired buttons to wireless buttons, etc.

Board overview

• 15 button states of the transmitter
• Pairing function for the receiver
• Support one-transmit and multiple-receive
• Support one-receive and multiple-transmit
• Multiple working modes: inching, latching, self-locking, and interlocking

• Remote control
• Wireless doorbell
• Wireless signal transmission
• Upgrading wired buttons to wireless buttons

• Working voltage: 3.3～5.0V DC
• Stable transmission distance: 15M indoor
• Transmitter emission current: 10mA@5V
• Transmitter standby current: ＜10uA@5V
• Receiver emission current: 6mA@5V
• Receiver standby current: 3mA@5V
• Input signal: digital
• Number of interfaces: 4
• Working frequency: 433Mhz
• Transmitter size: 47×32mm
• Receiver size :37×32mm
• Mounting hole size: inner diameter 3.1mm/outer diameter 6mm

• Product wiki
• Transmit Switch Schematic
• Transmit Switch Dimensions
• Receive Switch Schematic
• Receive Switch Dimensions

• Gravity: Digital Wireless Transmit Switch x1
• Gravity: Digital Wireless Receive Switch x1
• Gravity: Digital Sensor Cable x2