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what diode should I use?
Hi, I am sending a 5V signal to a 24V circuitry.Some times it is inducing voltage back into the 5v circuitry.So what diode should I use to prevent the 24v from inducing back into...
Saturday, 22 February 2014 - 11:03
reading a pwm
Hi, I want to read a PWM and I am using the following code in arduino. void setup() { DDRC = 0; // pins as input // enable PCINT 18 to 23 PCICR |= (1 << PCIE2...
Thursday, 12 December 2013 - 08:07
Optical encode and motor driver tutorial
Hi, I am actually working with a motor which came with an optical encoder and a motor driver.The optical encoder as I see has two channels and the motor driver is controlled by a...
Tuesday, 26 November 2013 - 08:31
Making a servo's internal circuit
Hi, I want to know whether it is possible to make the internal circuit found in a servo like (futaba or hitec).I have seen Open servo through (I am looking in terms of a simpler...
Monday, 29 September 2008 - 13:14
PWM delaying
Hi, I have a PWM signal coming from a receiver.I have 10 servos.I want the PWM signal from the source to reach each servo from 1 to 10 in succession after a time delay.How shall I...
Thursday, 18 September 2008 - 06:46
Mkaing a USB to I2C converter
Hi, I want to make a USB to I2C converter for making an Open servo. I have found that the commercially available USB to I2C devices generally use FTDI chip for converting the USB...
Sunday, 14 September 2008 - 16:00
Atmega128 bootloaders
I am new to bootloaders.I want to know few things.I know that a bootloader is protocol specific (that is it should be STK200,STK 500 etc..)Are all the STK500 bootloaders the same....
Sunday, 7 September 2008 - 09:41
Copying bootloader from Atmega8
I have a circuit with Atmega8 and there is the boot-loader in it that I want to copy.The atmega8 controls a device ,unfortunately the device stopped responding.I have to load the...
Saturday, 6 September 2008 - 18:48
RS232 to TTL converter?
Is there a way that I can make a converter for RS232 to TTL level at 1Mbp baud rate.I have a USB to RS232 converter but I want to convert it to TTL level.Also I can use MAX232 to...
Friday, 5 September 2008 - 08:43
Atmega 128 programmer problems
I have taken a new Atmega 128 and I am trying to program it using a USB STK500V2 programmer. (I have purchased the programmer from Robokits India http://robokits.co.in/shop/index....
Wednesday, 3 September 2008 - 07:37
Atmega128 setting lfuse and hfuse for 8mhz and 16Mhz
Hi, I have bought a new Atmega128.I want to do UART communication with it.I want to set the lfuse and hfuse values to make it work at 8Mhz external oscillator and 16 Mhz external...
Tuesday, 2 September 2008 - 15:03
PPM generater
I am planning to build a UAV.I have the following problem.The Rx has PCM/PWM pins to each servo ,now all the signals from the 7 channels are to be combined to make one composite...
Thursday, 17 July 2008 - 16:29

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