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Recent content by pashok84

  1. P

    Mains operated outdoor LED lighting

    Tpetar: I have not brought anything so far. I am planing to use white LEDs. Yes i am looking for transformer less circuit, but my worry is it safe to use for this circuit.
  2. P

    Mains operated outdoor LED lighting

    pranam77, thebadtall and tpetar: thanks for your kind information. pranam77: I want to install outdoor lightings in my home and garden. 18 leds per module is rough number, don't have any calculation. Just thought 18 leds in module will give good amount of light. thebadtall: I have not enquired...
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    Mains operated outdoor LED lighting

    Hi pranam77, Thanks for your reply. i don't have any specific configuration for led placement. Is SMD LED gives same brightness? is it available in local shops in Chennai. Is there any circuit diagram with normal LEDs. Is it advisable to share SMPS from my computer for this work? Please...
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    Mains operated outdoor LED lighting

    Hi, I need a circuit diagram, for LED outdoor lighting, which operates from Mains power. My plan here is to control all the LED lighting modules ( 6 - 10 modules) using single switch. Each lighting modules should contains the following convert circuit 230vAC to 12v/5v DC array 18 LEDS /...
  5. P

    How to restart USB powered devices without physically removing the devices

    Thanks for your kind reply xaccto & tpetar. Tpetar: what i was searching is to restart the USB modem connected to usb port of linux machine.
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    How to restart USB powered devices without physically removing the devices

    Hi, I have USB modem connected to my linux box. My linux machine is powered on all the time. sometimes USB modem is not working, i need to physically remove the modem and insert it to work properly. HOw to restart the USB powered devices, without removing it physically. Is it possible to switch...
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    homemade PCB using inkjet printer

    Thanks alexan_e How does photosensitive PCB costs compare to copper clad PCB? Using laser printer, can i use normal paper or need to use only photo paper. Thanks and Regards, Ashok Kumar P
  8. P

    homemade PCB using inkjet printer

    Hi, I am using the toner transfer methods to make my PCB. I facing problem in transferring the image to copper clad plate. i used magazine paper for printing the board layout. when applied the heat image is not transferred or paper is not sticking to board. How many mins i need to iron the...
  9. P

    Need a power supply and battery recharge circuit design

    I have microcontroller board with me. which requires 5v as power supply. I want my board to run 24x7. I want a circuit which recharges the batteris and switch to battery supply without restarting the board. My idea was to have 12v / 9v DC adapter connected to this battery circuit, where it...
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    How Share internet connection between USB modem and ethernet in laptop

    Hi, I have a 3G USB modem (Reliance netconnect). I want to share my internet with other computer in my home. I am able to establish a seperate network between laptop and other computer in 192.168.0.x and have Internet in Laptop. Now i want to share the internet connection in my computer...
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    How to make my mcirocontroller to tweet

    Hi All, I have TI's stellaris board with ethernet connection. I have connect it to my router. I want to make this board tweet different parametter in regular interval. What are the things required to make my controller to tweet. Thanks and Regards, Ashok Kumar P
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    MAX3232 circuit problem

    USB scope doesn't support +/- 13v. I will be using MSP430 board with this.
  13. P

    MAX3232 circuit problem

    I have not connected my scope in it. When monitor the line with multimeter, i can observe 0v when in idle. when will be the max and min voltage in T2OUT pin? is it safe to connect the scope. (i am using small usb scope).
  14. P

    MAX3232 circuit problem

    are you asking T2OUT? R2IN is connected to RS232 cable and i am getting pulse in R2OUT.
  15. P

    MAX3232 circuit problem

    i am connecting after level conversion. R2OUT and T2IN of MAX 3232

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