WattUp Power-Harvesting

The WattUp Power-Harvesting Developer Kit

This energy harvesting kit developer combines e-peas’ power management IC technology with Energous’ radio frequency (RF) solution to support at-a-distance wireless charging applications for smart buildings, industrial IoT sensors, retail electronic displays and more.

The WattUp Power-Harvesting transmitter incorporates the DA14682, DA4100, EN3921 and EN3913M devices. The DA4100 is a highly integrated system-on-chip (SoC) Wireless Power Transfer (WPT) transmitter IC, the EN3913M is a highly efficient GaN power amplifier (PA) controlled by the EN3921, while the DA14682 is a Bluetooth low energy 5.0 SoC with enhanced security and integrated FLASH memory. A lower power option is available with the DA3210 CMOS power amplifier.

On the receiver side, there are 3 input paths to choose from based on use case with either discrete diode or DA2210 RF-to-DC implementations which connect to the AEM30940 ambient energy manager chip and the DA14531, a size-optimized, ultra-low power Bluetooth low energy system-on-chip ideal for IoT devices.


  • IoT Sensors
  • Building Security
  • Occupancy Sensors/Management
  • Industrial Automation
  • Asset Tracking
  • Electronic Shelf Labels

Wireless charging transmitter supporting groundbreaking at-a-distance charging

  • Small size using optimized WattUp technology
  • 1W or 5.5W of conducted power using a single WattUp PA
  • Charging Zone of +5 meters
  • Optimized antenna for performance design fitted to product mechanical requirements

Simple Implementation

  • Flexible designs that can fit into multiple transmitter and receiver designs
  • Universal transmitter supports variety of receiver devices charging at the same time “one to many”
  • Single PA/Antenna non-beamforming

User Friendly Experience

  • Over-the-air distance charging interoperability

Scalable Architecture

  • Multiple devices can charge simultaneously
  • Multiple Tx topology to increase area coverage

Developer Kit


  • E-Peas AEM30940 Harvesting PMIC with Supercap or rechargeable Lithium battery support

  • Low Voltage Operation from 50mV to 5V

  • Cold Start from 380mV input voltage

  • DA14531-based BLE sensor hub with example sensors (Ambient light and Temperature/humidity)

  • Optional E-ink ultra-low-power Display

  • On-board or external BLE antenna

  • External Harvesting antenna

  • USB micro and JTAG Debug ports

What’s Included

  • Reference Design Transmitter Hardware (1)

  • Reference Design Receiver Hardware (1)

  • Mobile App to monitor and control TX/RX

  • TX/RX Schematics and Layout files

  • TX/RX Antenna Design files

  • TX/RX Mechanical files

  • Firmware SDK

  • Engineering Antenna simulation study for customer design

  • Engineering Support to evaluate Antenna design, HW/FW integration

For more information on purchasing a developer kit, please use the form below:

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Partner products based on the WattUp PowerHub technology must secure applicable regulatory certifications in the markets where they will be sold.