Questwise Ventures Introduces Energy-Harvesting Wireless Transmitter/Receiver for IoT Connectivity

Los Gatos-based Questwise Ventures has launched a new gadget that aims to deliver Internet of Things (IoT) connectivity without the need to power the transmitting side — by using an energy-harvesting push-button capable of driving its radio.

Questwise Ventures, based in Los Gatos, has introduced a groundbreaking gadget called the Energy-Harvesting Wireless Transmitter & Receiver. This device is designed to provide Internet of Things (IoT) connectivity without requiring a power source on the transmitting end. It achieves this by utilizing an energy-harvesting push-button that can power its radio transmission.

The key innovation lies in the specially designed button, which features an inventive spring mechanism. When the button is pressed, it efficiently captures and releases energy generated during the press. This energy is then directed to a coil, which in turn powers the transmitter, enabling seamless transmission of a single signal.

The Energy-Harvesting Wireless Transmitter & Receiver represents a revolutionary solution for IoT connectivity, allowing for energy-efficient and self-powered wireless communication.

Questwise Ventures‘ Energy-Harvesting Wireless Transmitter & Receiver builds upon a technology that has already seen use in self-powered door chimes. In this familiar scenario, the button outside the door draws the energy needed for transmission from the physical act of pressing the button, eliminating the need for a power source.

Similarly, Questwise’s device includes a transmitter that harnesses energy from the push-button mechanism. This transmitter is paired with a receiver designed for connection to a microcontroller or another powered device. When the transmitter sends a signal — which can be received from up to a couple of meters away — the receiver can then generate a momentary pulse or a latching toggle signal. This signal can be interpreted and acted upon according to the user’s needs or preferences.

“Using a self-powered transmitter in situations where the receiver needs to be powered can offer distinct advantages, particularly in scenarios where you want to minimize maintenance, increase reliability, or enhance convenience,” the company says, suggesting it could find a use for everything from doorbells to emergency signaling.

The transmitter and receiver are available as a matched pair on the Questwise Ventures Tindie store, priced at $21.30.

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