10:56pm 10-17-2017
Mitch Fowler
Why can I not get into stair light store? The message says it does not exist.
5:23am 10-21-2016
siebe bruyn
i looked to your design of the stair lights .
my question is , is the schematisch sigrid . so can i get the info how you made it ?
5:45am 08-24-2016
Hi Alan
i need to design an experiment using an lm35dz temperature sensor to determine the sensitivity of the sensor
3:13am 04-17-2016
Sonja Hoem
Can you contact me for snowrobots?
I live in Norway and want to test it in my city so if you have contacts about this issue please contact me on
From S.Hoemso
3:12am 04-17-2016
Sonja Hoem
Can you contact me for snowrobots?
I live in Norway and want to test it in my city so if you have contacts about this issue please contact me on
From S.Hoemso
11:19pm 03-13-2016
Manas Bose
Respected sir,

Myself Manas Bose, Sir I am working on a project, where I have to control a stepper motor step control with the help of a potentiometer, and arduino the sir I have wrote a skech with the help of a friend attached herewith, it is working fine.

Sir now I want to make this thing wireless, sir I want to use 2 arduino and 2 xbee, on sending side a arduino, xbee, and a potentiometer will be there. On receiving side a arduino, xbee and a stepper motor will be there. Earlier one setup I made with servo motor.

Sir, I and my friend don't have adequate knowledge of c ++, I hereby request u to kindly help
In the coding, or at least if u can throw some light on it.

Hope to be favored please
Thanking you

#include <Stepper.h>
int current_position = 0;
const char direction_pin = 2;
const char step_pin = 3;
const char pot_pin = 1; //analog input 1
void setup()
pinMode(direction_pin, OUTPUT);
pinMode(step_pin, OUTPUT);
pinMode(pot_pin, INPUT);

void loop()
int readvalue = analogRead(pot_pin);
readvalue = map(readvalue,0,1023,0,1151);
if (readvalue > current_position)
current_position += 1;
else if (readvalue < current_position)
current_position -= 1;
}//end of loop

void step_motor_forward()
digitalWrite(direction_pin, LOW);
digitalWrite(step_pin, HIGH);
digitalWrite(step_pin, LOW);

void step_motor_back()
digitalWrite(direction_pin, HIGH);
digitalWrite(step_pin, HIGH);
digitalWrite(step_pin, LOW);
10:48am 01-13-2016
Debby Quashen
Hi Alan
You give instruction on how to build a IR jammer for TV remote controls. Do you have any instruction tutorials on how to build a RF jammer?
3:26pm 11-27-2015
felipe perdomo
Hello Alan
I received the email you sent me to the correct address where you send the package.
Activated me with the post office and tell me that you must have the shipping code or guide number, you can send me , to go to withdraw because without can not do anything thank you very much
11:58am 11-26-2015
felipe perdomo
hola buenas tardes
hice un pedido de jammer ir y todavía no me ha llegado y ya a pasado mas del tiempo estimado de entrega, quería saber por que compañía fue enviado y el numero de guía para poder hacer le un seguimiento espero me respondas pronto ya que te envió correos y no recibo respuestas

12:39pm 11-16-2015
Need your stair ligt kit, I am from Kerala, part of india
7:45am 11-11-2015
Dear Mr. Parekh

I am a high school student in Japan and I am doing a personal project for next year`s diploma. I decided to make a levitating rotating globe like you had made and I would want to ask you for a clear circuit diagram, specific materials and some procedures of how I can build it. I am going to use a 3D printer to make other parts of the model but the thing is that the globe is going to be a toroid instead of a sphere since I my topic is about Poincare conjecture. I am going to make a celestial model so a light bulb will be placed in the middle which acts like a sun and the levitating rotating toroid would be orbiting around it using a gear. I am investigating about how it would be like living on a toroid Earth and I needed to observe from different perspective. So I would want the toroid to be able to be placed in different angles. This is my email so if there is any question and some concerns, please contact me.
Thank you for taking the time for my request and I am looking forward for your reply.

Sincerely, Erika Ishigami
11:09pm 10-25-2015
hi Alan i want to manufacture electronic zapper to kill parasite plz help me i wnat to sell that in market for cheaper price plz suggest me i am indian living in malaysia
4:30am 03-18-2015
balta ioan
hello. I apologize for the inconvenience but I would be interested if you Complete kit for emp jammer. I must say that I bought from you a kit IR jammer and want to know how many days to get the parcel. I must say I am from Romania and I want to know how much time do.

thank you and wish you a nice day
12:37am 02-04-2015
Ernest Barnes
Hi Alan
Just one question i would like to ask you. I have compiled your prop clock in proteus 8 pro it seems to work but the problem i have is working out the connection of the three terminal Berg connector as proteus does not have this
How do i go about suppling power to them.
Any help will be apreciated
Thanking you

ps i also done your hddclock and it works great no problem their.
7:43am 01-23-2015
Craig schuld
My email is
Messages: 16 until 30 of 387.
Number of pages: 26
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