•Канал на Ютуб / Channel on Youtube: https://www.youtube.com/channel/UCyVzmkYMe5pQK0HMWgyaE9Q?view_as=subscriber
•Видио на Ютуб / Vidio on Youtube: https://youtu.be/AejZOrpN9Ko
•Схема проекта / Project circuit: https://easyeda.com/romans.dodu/laser_spirograph_2019
•Архив с файлами лазерного спирографа ссылка / Archive with laser spirograph files link: https://drive.google.com/open?id=1GjJvR0MF...
THIS WORKS AS A REGULAR ARDUINO. ALL U NEED TO DO IS SOLDER THE COMPONENTS AND UPLOAD THE CODE USING AN (FT232RL USB TO TTL CONVERTER) MODULE. IF U DONT HAVE IT THEN SEE COPY THIS LINK AND SEE IN GOOGLE,
Original source from : [https://easyeda.com/berger.xavier/solarsaver](https://easyeda.com/berger.xavier/solarsaver)
**Open Solar Energy Diverter**
This project have the aim to divert not comsumed electricity produced by photovoltaic panel to water heater to keep energy produced in the area of usage.
This project is base on idea from [http://energie-autrement.blogspot.com/p/plans-eolienne.html]...
This is a custom - Arduino uno - based circuit.
- Microcontroller: Atmel ATMega328p
- Bluetooth Module: Support HC-06 & HC-05
- Motor Driver IC: Two L293D (up to 4 DC motors or up to 2 stepper motors)
- Servo motor header
- 3 input/output pins (Can be used to connect LEDs or button SWs)
- Programmable header
- Reset button
DIY Hot Air Station using Arduino (ON/OFF Based Heat Controller).
Arduino Pro Mini for all the magic.
TM1637 4-Digit Display Module for display purposes.
LM358 based amplifier to read thermocouple voltages for measuring current temperature.
4 buttons to set the desired temperature required.
BTA16 with MOC3041 and other suitable passives as the heater controller.
Manual temperature calibration is n...
TDA7439 + NodeMCU + Aptx module audio board
OLD version, noisy.
New version with ground separation: (https://easyeda.com/fxndstrs/tda7439)
This afforable Geiger Counter that works as standalone device and also can connect to other external devices (like RaspberryPi/Arduino or other GPIO devices) to send the "clicks" thru GPIO interface.
The Arduino code for the Geiger counter is available here:
- Pin D2 --> Arduino interruption
- Pin D7 --> Buzzer
- Pin D8 -->...
# UM66T Melody Generator
An UM66T generates various Melody Tunes when triggered which can be used in car/scooter reverse signals, doorbells and toys.
**Order PCB:** [PCBWay](https://www.pcbway.com/project/shareproject/Musical_Bell.html)
## Electronic Components
| Qty | Comp...
**This is an experimental electronic circuit, without any warranty.**
Single channel 2-way 24 dB/oct Linkwitz-Riley active crossover.
Crossover frequency: 2.9kHz
PCB dimensions: 60mm x 100mm
Equalizer characteristics - simulation
I always wantedo create a color organ, and recently I started learning about electronics.
I designed this circuit, but never tested it yet (waiting for parts to arrive).
If you have advise, please feel free to contact me here: https://goo.gl/xBLJye
It is possibe that I designed something wrong, so if you find any mistake, please contact with me. Thanks for your help.
The project describes a compact DIY dual H-bridge using pairs of P and N channel MOSFET's. The H-bridge is built for Arduino, but can be used for Raspberry Pi as well. H-Bridge supports PWM.
The PCD is made in a way to assemmble it using prototyping board, I recommend to use 1 layer board. LED's are to indicate wheh any of P-channel mosfets is active and visualase output's state.
Advantage of pro...