Wireless communication based on NRF24 and Arduino Pro Micro

Wireless Communication with NRF24 and Arduino Pro Micro

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Wireless car card with RF module

2 Layers PCB 100 x 100 mm FR-4, 1.6 mm, 1, HASL with lead, Black Solder Mask, White silkscreen; This card is part of the chassis to build a wireless car controlled with the RX480 RF module.

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Personnel wireless alarm

2-layer PCB 46 x 75 mm FR-4, 1.6 mm, 1, HASL with leads, black solder mask, white silk screen; With this simple circuit you can make a wireless people counter.​

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Output capacitor bank for signal power or dual supply headphone amplifier

This is a simple output capacitor bank for use in signal powered or dual supply headphone amplifiers. The output capacitor bank protects the headphones from DC current.​

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drawdio: musical pen, different rhythms when touched

This version of Drawdio originates from a version carried out by Jorge Frutos (@JorFru) at UC3Music (@UC3Music), another design practice for first-year students of the Advanced Degree Training Cycle in Electronic Maintenance at IES Virgen de las Nieves has become Granada Scientific Part of the Garden Play exhibition.​

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Flexible PCB with three buttons

1 Layers PCB 11 x 48 mm Polyimide Flex, 0.1 mm, 1, Immersion gold (ENIG), Yellow Solder Mask, White silkscreen;

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Portable wireless touch remote control

A tiny potable remote that can be customized to do different tasks using touch functionalities of ESP32

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PixArt PMW3360DM-T2QU: Optical mouse sensor breakout board

PixArt PMW3360DM-T2QU optical mouse sensor breakout board that can operate at 1.8V or 3.3V voltage levels.

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LEDThermometer: LED Indoor Wall Thermometer with Power Adapter

LED Indoor Wall Thermometer with Power Adapter

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LEDBOY: A game console without an LCD screen based on Attiny 1614

This project started with a conversation with a friend and apparently how the LED based consoles that existed in the 70's have never been revisited

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1km radio controller

Powerful 1km 6-10 channel remote control, suitable for DIY projects such as drones and cars.

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Prototype boards for ESP8266, ESP32 and ESP32-S2 modules

This is a prototype board for use with ESP8266, ESP32 and ESP32-S2 modules. The board is divided into areas that can be cut and then put together to build advanced IoT prototypes. After cutting as shown in the picture, you can start assembling the IoT device.

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100w stereo amplifier board DIY TDA2030 IC with transistor

This is a 100w stereo amplifier board. This project can easily play two 50w speakers.

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100w mono audio amplifier board DIY 2SC5200

This is a 100w mono audio amplifier board. This project can easily play speakers up to 100w. I used two 2SC5200 transistors and a 30-0-30 transformer in this project

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100W fast charging power bank (0.91' OLED screen)

A 100W fast-charging mobile power supply based on the IP5389 chip solution, equipped with an OLED display that can display battery power and temperature.

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PYPRCA: python programmable open source calculator based on Raspberry Pi PICO, developed using circuitpython

Pocket calculator style general purpose programmable device (computer) ideal for learning programming and improving building/soldering skills.

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Raspberry Pi RP2040 direct drive DVI/HDMI interface display cool display

These demos all use Adafruit's PicoDVI branch, which makes the video framebuffer look like a regular Adafruit_GFX object, which makes drawing very easy.

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Open source headphone design based on RP2040 and PCM3060

All files are open source, including software, hardware and 3D printing shells, and how to make and assemble them are described in detail, especially the EQ equalization filter test and frequency response test are explained in detail. The main control uses RP2040 + TI 24-bit asynchronous stereo audio codec PCM3060 with 96/192kHz sampling rate.

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Simple, high-quality condenser microphone DIY for under $100

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IH induction cooker inverter circuit

This reference design provides design guidelines, data, and other content for an IH induction cooker inverter circuit based on voltage resonant soft switching.

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