Search results

  1. wdariusw

    Relay output

    Output will be small power, only signal for turning boiler ON. So there is bridge rectifier feeds optocoupler, and the optocoupler outputs are in series... I think this is quiet simple and proper way. But need to choose proper components.
  2. wdariusw

    Relay output

    If i will have logic level signal, then there are a million solutions for doing what I need. But if i only have 230V and do not want to convert it to another voltage ?
  3. wdariusw

    Relay output

    Hello. I have six 230V input signals (from room thermostats) . I need to have relay output if all of them are active. So, i do not have idea how to do that without 7 relays. How it is possible to do using other electronic components and one relay ? Any ideas ? Thanks !
  4. wdariusw

    LED strip power supply

    I will use 1m (not 20cm ! ). Why i should use 100R resistance for 12V led strip if i will use dimmer ?
  5. wdariusw

    LED STAIRS

    Hello again. My stairs project is under construction. We decided do stairs lighting with mechanical switch without any motion detector. Here are progress: After 2-3 weeks stairs should be finished (without railing and LED). After about 4-5 weeks I will receive LED strips, and finish my job...
  6. wdariusw

    LED strip power supply

    Ok...i have bought 4w/m led strip. As i said, i will use about 1m led strip for each step (16 steps) . So there will be about 64W . Also, i will use dimmer for intensity regulation. Now thinking about proper power supply. What is better, constant current or constant voltage ?
  7. wdariusw

    LED strip power supply

    Better price is for fixed output voltage (in my country 26eur for 180w 12V 15A) . What would be best way to reduce intensity with that power supply ?
  8. wdariusw

    LED strip power supply

    It is for my stairs lighting - 16 steps 1m wide:)
  9. wdariusw

    LED strip power supply

    Hello. I have 16pcs 9.6W/m led strips. I want to connect all strips in parrarell. What power supply i need ? 160W ?
  10. wdariusw

    LED STAIRS

    Hello. Sorry for long delay...Here is a picture: Still have no idea what sensor to use...PIR sensor here do not fit, because of wide angle.. Here, again :)
  11. wdariusw

    RF signal strength

    Or maybe my body is like big capacitor, and if i change capacitor near battery, signal would be better ?
  12. wdariusw

    RF signal strength

    Hello. I have my car remote key, and there is strange thing. If PCB is in key fob (original, plastic), car remote work in about 2 metres. If I'm holding PCB in my hand, remote works from 20 metres. Whats is bad here ?
  13. wdariusw

    LED STAIRS

    Hello again. When i have free time, trying to do something for my stairs lighting. Here what i have did already : I have 16 stairs, so i think that best option to choose were 16 ch PWM module. Now i thinking again about motion sensor. What is est option...i want that sensor would be as more...
  14. wdariusw

    LED STAIRS

    Thanks for the answer. Yes, it is solution tu turn all led strip led with same color, instead of joining one addressable led to non-addressable led strip. Or...Cheaper would be simple led strip, but more wires :) But my choice would be fully addressable LED strip here. Need to think about best...
  15. wdariusw

    LED STAIRS

    There would be a lot of motion or maybe weight sensors for bigone5500 suggestion. There are lot of LED strips with individually addressible LED's , but i need one address for one LED strip. What is best solution to do that ?
  16. wdariusw

    LED STAIRS

    Hello all. Just bought my own house that is under building phase. I wish to have led stairs something like this: What is the best choise for led and MCU wiring ? Addressible led strips ? Maybe someone of this forum have done that at own house ? Sorry for bad english. Thanks ! :)
  17. wdariusw

    PWM led without timer

    Do you have avr-gcc code ? :)
  18. wdariusw

    PWM led without timer

    Today morning finally did what i want! This is code for one LED on PA0 port: #include <avr/io.h> #include <util/delay.h> #define fadeSpeed 50 void loop() { for(int fade=255;fade>0;fade--) { PORTA=(PORTA|(0b00000001)); _delay_us(fadeSpeed*(255-fade))...
  19. wdariusw

    PWM led without timer

    Very strange thing...Finally "almost" got pretty soft PWM, bet with minimum duty cycle (my rigol scope shows 100mV) led still is on.
  20. wdariusw

    PWM led without timer

    No, do not work... led blinks and at the moment turns off... I need to get first effect of this video . Everywhere are written about nice atmega software pwm, but no luck with working code..
Top