Control several FAN(3 pin) via PWM
PWM from motherboard connector (4 pin) or temperature sensor - jumper selection.
-with capacitor: RPM range 50-100%, RPM sensor working;
-without capacitor: RPM range 10-100%, RPM sensor not working.
Автор — поляк Pawel Kisielewski.
ПРИНЦИП РАБОТЫ УСТРОЙСТВА
— очень прост – подаем на плату 12 вольт, вставляем в панельку «запорченный» микроконтроллер, нажимаем кнопочку «START» и через доли секунды получаем новенький рабочий микроконтроллер. Очень просто, даже не нужен компьютер (всегда возмущают псевдо навороты, в виде управления при помощи специальной программе на PC, там, где это в принципе...
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]...
# **DIY JBC 245 Controller (not tested yet)** #
Wich can be powered with a standart 19V DC laptop charger.
The project based on the Atmel328 μc, and i try makes simple as i can. The first problem driving a jbc tip is the thermocouple and the heater have a common pin and its not the GND. On some forum i found the easyest way to do is just siple pass the heater current on the thermocupple but thats...
Atmega chips can consume way less power. It is useful to be able to create your own atmega circuits, instead of using Arduino in your projects. You will find schematics and matching boards.txt files in this project.
Universal board for LED control.
- Atmega8/328 on board with programming connector
- PCA9685 for 16 channel PWM up to 1.5kHz (eye-safe frequency), 12 bits per channel
- cheap ULN2003 with paired outputs for 1A per channel (2-3 meters of RGB 5050 strip per connector)
- or SOT23 MOSFETs if you need more power
- BT05 bluetooth module or MAX485, control by wire or wireless. DMX512 is possible.
V.2 - added checking of the correct functioning of the controllers (ATmega and SPC-2). If one of them fails, the data in the output blocks is reset within 0.35s.
Makes the ancient PLC700 as Profibus DP slave for the modern controllers. Is inserted instead of the PLC700 Central units. Cabinet, external connections, I / O process control system remain unchanged. The data I/O refresh cycle...
The Water Organ is a capacitive Midi Controller.
There are 24 inputs to which you can connect cups of water or other capacitive stuff like fruits or vegetables and touch them with your hands in order to make music.
The circuit uses two MPR121 breakout boards in order to make individual capacitive buttons. The button states will be sent over a Midi output. A Midi input can be used to control a neo...