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Ricardo

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41 Following
3 Projects
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ricardo
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This user joined on 06/26/2017.

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Convert a rear bike light into a USB rechargeable one.
Project Owner Contributor

USB rechargeable bike light.

ricardoRicardo

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Old handheld terminal for sending orders over the phone. Instructions manual missing.
Project Owner Contributor

MSI/55 handheld terminal modem

ricardoRicardo

210
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A simple circuit to tell if it is hotter or cooler outside or at home.
Project Owner Contributor

Differential thermometer

ricardoRicardo

106.1k
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41
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LVDS, eDP, connectors and controllers - let's learn it all
Project Owner Contributor

All About Laptop Display Reuse

aryaArya

31.9k
2.8k
8
193
Environmental sensing for everyone.
Project Owner Contributor

FieldKit

shah-selbeShah Selbe

18.6k
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This project started when my digger obsessed son said 'Daddy can you make me an Excavator?' So I thought sure how hard can it be....
Project Owner Contributor

Plywood Excavator

alex-lovegroveAlex Lovegrove

17.5k
125
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Build a complete LW, MW and SW (AM and SSB) radio with the Si4735 / SI4732 and Arduino.
Project Owner Contributor

Si4735 SSB Receiver Controlled by Arduino

ricardo-lima-carattiRicardo Lima Caratti

14.2k
92
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Transmit radio signals using just a serial port? You bet!
Project Owner Contributor

Serial Port SDR

ted-yapoTed Yapo

6.3k
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Using a Raspberry pi 3b+ and RTL-SDR Dongle to make a Digital Police Radio.
Project Owner Contributor

Raspberry Pi Digital Police Scanner

brianBrian

5.3k
23
6
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An "effect box" which works as octave-down effect (halves input frequency). No internal oscillator involved, no PLL, just analog maths!
Project Owner Contributor

Analog oscilator-less octave-down effect box

ms-bossMS-BOSS

4.8k
35
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Hall effect sensor detects the proximity of magnetic field, and "pushes" the pendulum in the exact moment.
Project Owner Contributor

Magnetic Pendulum

simpletronicSimpleTronic

4.4k
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Exploring the FL2k USB-to-VGA dongle for signal generation
Project Owner Contributor

FL2k Experiments

ted-yapoTed Yapo

4.2k
898
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This new modem is build based on the NPR project from f4hdk. It is a compatible hardware with additional features like PoE, LNA and PA.
Project Owner Contributor

NPR-H New Packet Radio Modem

kuekkuek

4.2k
12
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This is a classical OTL (Output Transformerless) headphone amplifier base on popular 6AS7GA and E88CC double triode
Project Owner Contributor

OTL - Headphone tube amplifier 6AS7GA and E88CC

simonSimon

3.5k
11
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Reverse-engineering (mostly-)cheap eBay finds
Project Owner Contributor

Avionics + mil-spec teardowns

don-straneyDon Straney

3.4k
905
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A dual band VHF/UHF module based around two AX5043 radios. Built to work with HAM Radio communications using AFSK and G3RUH modulations.
Project Owner Contributor

VUHF Radio

notblackmagicNotBlackMagic

1.6k
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A small portable handheld geocache locator tool that uses a ring of LEDs show direction.
Project Owner Contributor

Arduino Geocache Locator

sean-hodginsSean Hodgins

1.4k
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Antenna for WiFi and Bluetooth based on shading of the second Fresnel zone (Fresnel diffraction).
Project Owner Contributor

Fresnel zone antenna (PCB)

denys-zaikinDenys Zaikin

1.2k
1.2k
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PC FM radio with RDA5807M without microcontroller. C# form control the chip through serial port.
Project Owner Contributor

PC FM radio with RDA5807M

florin-nicaFlorin Nica

925
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I needed to use my multiband discone antenna with my two APRS iGates.
Project Owner Contributor

APRS 70 cm and 2 m with a single multiband antenna

guidoGuido

570
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Couple of months ago, I bought a "Raspberry Pi Pico" to get some hands-on experience of it and to create some amazing projects using it.
Project Owner Contributor

Getting Started With Raspberry Pi Pico

hulkHulk

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