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DTMF decoder for handy with arduino, control over several kilometers
Tutoriales Aug 29,2024
In this tutorial we will see how to make a circuit to connect to our handy, in this case a Baofeng UV-5R (although it also works for other brands and models) for long distance control of motors, lights, water pumps without the need to use a cellular network, or in places where it does not exist. We will see the assembly of the electronic circuit, we will study the source code and finally we will test the entire device to verify its operation.Electronic components3.58 Mhz crystalTwo 100K Ohm resi...
Arduino radio handy
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SDriveMAX LED panel
DevZine.pl Aug 27,2024
Front panel with LED indicators: power and activity, designed for SDriveMAX for 8-bit Atari XL/XE computers.The potentiometers allow you to adjust the brightness of the LEDs to an even and desired level. It should be connected to the RX, 5V, and GND pins on the Arduino UNO module.The panel does not require any additional modules to function.Its small size makes it suitable for a 3D-printed case, such as https://www.thingiverse.com/thing:5037759 and others. The photos show the assembly process. T...
Arduino Retro DIY
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STM32 F407 Processor Board for Speeduino
Kemppainen Aug 23,2024
This is a STM32 F407 based processor board made for Speeduino that replaces the original Arduino Mega Processor board. With this you have faster processor with the SD-Card logging, CAN, RTC and many other features.
Arduino DIY
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stepper_controller
Aug 16,2024
Used to control a stepper motor via an ESP32 and a TMC2209.
Arduino ESP32 stepper motor
471
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DIY Breath Analyzer With The MQ3
Wohlfahrt Aug 15,2024
I always wanted to build some project with a MQ Sensor. The MQ3 alcohol gas concentration sensor is perfect for this case! I designed a pcb with a small size and battery powered operation. And with that my DIY Breath Analyzer was born! You can check out my instructable to read more about the process and build yourself one too!:https://www.instructables.com/DIY-Breath-Analyzer-With-the-MQ3/
Sensor DIY MQ3
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DIY Simple STM32 Virtual Electronic Finderscope (Stellarium Compatible)
Pavleski Aug 15,2024
 A finderscope is a small auxiliary telescope mounted on the main telescope to help locate and center objects in the main telescope's field of view. The finderscope provides a wider field of view than the main telescope, making it easier to locate objects in the night sky. However, finding the desired object in the night sky is a very laborious task and requires a lot of time and patience, especially for beginning astronomers. This time I will present you a simple way to make an e...
Microcontroller USB Arduino
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arduino-oled-audio-processor_audio-processor-tda7419_2024-03-27 (1)
Aug 14,2024
arduino-oled-audio-processor_audio-processor-tda7419
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ATtiny 13/85 Programmer
Aug 13,2024
ATtiny 13/85 programmer. It works both for burning bootloaders and for programming. You can do it with one or two at a time. The third slot is for mounting the chip and testing it with a circuit of your interest. You must have an Arduino Nano that has the "Arduino as ISP" sketch.
Arduino ATtiny
578
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PCB AgOpenGPS AIO V4.5 by Urepom
Urepom Aug 09,2024
Ce projet est un PCB utilisable pour AgOpenGPS, il est compatible avec la version officielle et ma version modifiée antérieures à AOG v5.6/!\ Attention, je ne suis pas expert dans la conception de PCB, il est donc possible que ce dernier ne soit pas 100% optimisé. Je partage ce projet, car on me l'a demandé, mais je ne serais en rien responsable si un problème devait apparaitre à cause de ce PCB.L'objectif de ce PCB est de diminuer les coûts de fabrication et d'avoir le moins possible de modules...
Arduino Hardware Board
6715
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Simple TEF6686 DSP AM FM tuner with ESP32 microcontroller
Pavleski Aug 08,2024
 The TEF6686 radio module is intended for AM/FM receivers for cars. This miniature module has amazing possibilities, great sensitivity and selectivity, adjustable de-emphasis and filter. It has an output analog audio L + R, or MPX, depending on the configuration. Also, it has an I2C communication protocol, through which the module can be easily controlled by a microcontroller.  Recently, in one of my previous videos, I described how to make a radio with this module that is control...
Arduino ESP8266 Development Board
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Bruce RF Reaper PCB
Explore!https://bruce.computer MCU ESP32 S3 N16R8BATTERY 1000MAH6 WAY BUTTONAW9523 IO EXPANDERNRFCC1101 433MHZNFC ST25R3916VIBROBUZZERIR TX RXIBUTTONSDCARDLEDGPSFLIPPER ZERO HEADER COMPATIBL...
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Self-Balancing Robot PCB
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f32 - an extremely small ESP32 board
The f32 is an ultra-compact ESP32 development board designed to mount directly behind a USB-C receptacle. The PCB measures just 9.85 mm x 8.45 mm. It's powered by the ESP32-C3FH4 microcontro...
World's Smallest 1S Battery Charger
This is a very small 1S lithium battery charger board designed for projects where space is extremely limited. It charges single-cell Li-ion or Li-Po batteries (3.7V nominal) using a USB Type-C input. ...
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