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cattery

RF IOT ANTENNA RADAR

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cattery
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This user joined on 02/23/2019.

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Ground Penetrating Radar using Arduino
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Quadrifilar helix antenna for GPS/GNSS
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A solar-powered node that stores energy in a supercapacitor, wakes-up regularly, measures different parameters, and sends them to a gateway
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Presta valve extension with built-in, no battery pressure sensor. Connect and forget. Indefinite lifetime.
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No battery NFC pressure sensor for bike valves

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An acoustic phased array that is able to create images and videos from sound
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Acoustic Camera

John DuffyJohn Duffy

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A version of the classic arcade game Asteroids using a laser projector running on the ESP32.
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Laser Projected Asteroids on the ESP32

Chris GChris G

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Running Open Source Espruino/Bangle.js firmware on the SMA Q3
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Hackable nRF52840 Smart Watch

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The 2020 HDP Dream Teams are participating in a two month engineering sprint to address their nonprofit partner. Follow their journey here.
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2020 HDP Dream Team: UCPLA

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An open hardware project to sense what is happening in your home
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Placemon - sense your home

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4-key macro keypad.
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macr0

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Polarimetric camera with a microscope lens attached to a 3d printer.
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Automated polarimetric microscope

E/S PronkE/S Pronk

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In this Lora project, we can control 5 home appliances from 10 km away in the rural area with the LoRa Arduino relay control circuit.
Project Owner Contributor

Lora Arduino Control Relay Module Circuit

SubhajitSubhajit

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A simple device that measures the moisture of face masks
Project Owner Contributor

Mask Moisture Meter

Rick PannenRick Pannen

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This is a small guide to deploy Raspberry Pi Pico SDK and FT2232H for Windows 10 systems.
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RP2040 : Quick setup guide for Win10 and FT2232H

NYH-workshopNYH-workshop

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Building a camera that turns polarization into color
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DIY Polarimetric Camera

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Exploring the undocumented Resistance to Frequency Converter (RFC) peripheral of the Padauk PFS173 Microcontroller
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Sensors Based on the Padauk RFC Peripheral

TimTim

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Measurement of efficiency coefficient in wireless power transfer of 10W and 20W
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Wireless energy (power) transfer experiment

mircemkmircemk

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Electrostatic levitation is the process of using an electric field to levitate a charged object.
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Stable Electrostatic levitation experiment

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