How Do I begin to program in c without a microcontroller

How would i get started writing programs in C/C++ on the computer for free. I would like to be able to write simple games.

Posted by sotsirh194 9 years ago

C++ help

Hello programers i need ur help, i need c++ program that control dc motor by 2 inputs U for Up and D for Down , so once  press U cycle duty increases by 25%  until reach max and press D for decreasing 25% until stop i hope  getting replays soon thanks all

Posted by nerofromeuro 3 years ago

free example Assembler and C programs. Examples

Ftp:// username: ian password: blank, no password required.

Posted by turnbui 4 years ago

Calculator Programs for Math

I've been working on some programs for my calculator recently and have decided to share them. I made these myself from scratch. If you want to modify go ahead just credit me. Don't sell them. And don't use them in math class if your teacher says not to. The programs are a follows: a quadratic formula solver, parabola solver, slope of a linear equation finder, and y-intercept finder. The programs work on TI-83's and TI-84's. If you have questions on how to use them or how to put them on your calculator please leave a comment!

Posted by sardines454 10 years ago

Program a flash drive

Hi everyone, I have a friend who have helped me to attach some components on the chip of the flash drive to make it possible to select some LEDs to lid. So with this new components I'm going to make a software that changes 4 LEDs in the flash drive. This software that I'm going to develope is going to be on the flash-drive and not on the computer, and when I press a button "turn on green" or something similar the green light should led. Now to my question. What programming language should I use, and how do I make it possible to "talk" to the leds? Hope anyone can help me with this, Thanks in advance xddx

Posted by xddx 6 years ago

A great improvement over ELIZA

MindMentor, the first robot psychologistPeople affected by emotional problems are often reluctant when they're told to see a psychologist. Now, they can confidentially consult online MindMentor, the first robot psychologist. It will cost them €4.95 for one hour session (or about US$7.65 as of today).( does anyone remember Eliza ? )

Posted by Goodhart 10 years ago

Reflections on Pier 9 Residency

My residency on the Pier lasted from January through June 2014, a total of six incredibly busy months, during which time I built a 3D printer with an un-bounded build volume and a low cost metal laser sintering 3D printer. It took nearly three months to learn to handle the overwhelming potential of each new day on the Pier. The Pier is such a focal point of creative energy and flux-- every day the Pier hosts thought leaders in design, fabrication, art, and engineering. I've never seen such a critical density of talent. In the residency program, I had the unique opportunity to collaborate with fashion designers, furniture makers, illustrators, and other engineers with a freedom and agility that I've never seen anywhere else. In one of many sudden collaborations, Anouk Wipprecht returned from a trip to LA and showed me an SLS 3D printed tentacle that she was considering using in a dress she was designing. I began thinking about FDM-printable compliant mechanisms and designed a tentacle more compatible with the fabrication process. Mikaela Holmes then saw the tentacles that I was printing and based on her input, I ran a couple more iterations. She then showed Paolo Salvagione these more developed designs, who in turn took it even further by adding servo-actuation to automate the piece's motion. Mikaela then iterated on the concept for several weeks, and settled on a multimaterial Objet fabrication process to make her amazing blossoming headdress. This kind of interaction could only have happened in the residency program. The other striking thing about the Pier is the learning infrastructure that surrounds each machine and process. Residents can get trained up on a machine under the instruction of the shop staff who have put together amazing documentation surrounding each machine (just see Dan Vidokavich's Haas VF-2SS video series). Tools, it turns out, aren't very useful unless you know how to use them and the Pier is full of extremely knowledgeable folks who always teaching through even the smallest actions. It's a very positive and healthy culture of always giving each other a hand. I have also never encountered so much support for realizing such personal projects. Noah Weinstein and Vanessa Sigurdson made sure no obstacle was insurmountable. When I needed to move my 3D metal printer prototype briefly off the Pier, Noah immediately located additional space and helped me move my prototype that weekend. Julia Cabral, Autodesk's environmental health and safety officer was also an amazing resource and advisor to my metal printer project, which involved high voltage, high powered lasers, explosive materials, and pressurized gases. Not only did Julia do tons of research to advise on proper sealing, venting, material selection, and gas sensing techniques, she also helped me draw up all the associated safety protocols for operating the prototype machine. I'd recommend the residency program to artists, designers, and engineers alike. The human and fabrication resources tare unparalleled and reside in a spectacular culture based on respect, openness, and mutual support.

Posted by andreasbastian 3 years ago

Wi-Fi Program?

Does anyone know of a free Wi-Fi program that i can use on a Compaq running XP? cheers, -John-

Posted by Klowd_13 10 years ago

PIC16F877A program

Hi, i am trying to build this code for like a week but didnt had any luck in making it perfect. i'm using MPLAB software for compiling and writing the program and Proteus for hardware simulation. here is the attached picture of the question i was assigned to build. if any one could please provide me with a code i would be more then happy. thanks in advance.

Posted by pizzadox747 4 years ago

Is it possible to program an Arduino without a computer?

Computerless Arduino from adam kumpf on Vimeo. I was wondering if there is some sort of way to program an arduino without the use of a computer? I have googled it and found a few videos but no explanation on how to build such a device. If you have any thoughts, it would be much appreciated if you left a comment. Thanks!

Posted by Robot Lover 7 years ago

Creating a USB program

Hello forums, I was wondering if anybody knew of a program that could do the following via USB. I have pet chickens that need feeding multiple times a day. I wanted to make a USB device that I could plug into my computer, and when I push a button in the program, it activates the USB port which is connected to my feeder. I don't need any help with making the feeder, it's just being able to run it on demand. Thanks in advance.

Posted by Blogger545 9 years ago

Best program for creating 3D models

Ok I want to make a 3D model for printing, what is the best program to use.  I have Maya 2013 (DEMO) , and 3DSMax 2013 (DEMO), and sculptris 6.  What program is the best to create and convert for 3D printing.  I want to enter in the new 3D Printing contest and if I make something 3D I want it to work on someones printer for them to print.  Plus if the software can make it fool proof, I don't want to make a model that won't print, and don't really know what is possible and what is not. Any help would be great.  Biggest concern it converting it over to 3D printing format, and making a model that would be able to be printed (with lets say makerbot, or the most common 3D Printer able to be printed by anyone). Thank you in advance.

Posted by spyder2021 5 years ago

Getting kids interested in Electrical Engineering program

Getting kids interested in Electrical Engineering I am starting an entry level program for High school students in Electrical engineering. This program is going to be run in the upcoming summer. I believe it is going to be over a course of one month in July. I would like some help from you guys. I am trying to come up with list of topics and activities to cover with them. This is what I have so far. Voltage, Resistance. Explain different components and their functions Have a few activities with the components that I will introduce. So does any one know any topics I should cover and different activities that would supplement the topics.

Posted by DELETED_kclv1988 10 years ago

Gear design

Hello there, I was wondering if you could help me: I need a simple program to design a basic gear, a pair of twin wheels. I need to set the number of cogs and the diameter of the wheels; this mechanism has to be as tight as possible. The idea is to print the wheels on paper and then cut a metal sheet accordingly; can you tell me a way to transfer the image directly on the metal? That would be of great help... Thanks.

Posted by Madness helps 9 years ago

CNC Mill From a joystick.

Hey so iv got this slightly damages USB joystick sitting around my house and it struck me that it could possibly be fun to turn it into a little CNC rig. Figure since its already got usb control to some degree it would simplify things alittle. So what I was wondering was is there some complication that makes this a bad idea that I am not seeing. Thought I would ask before rip the thing apart.

Posted by freakintrees 5 years ago

Looking back: the good, the bad, and the ugly

I thought a bit of reflection might be appropriate (and if not, tell me so and I will quickly remove what might be considered a waste of space and time): Not to start off on a negative foot, but this only came up recently, as I don't get to see much TV (probably to my benefit), and while scanning through the Online TV Guide, I saw this TV show title: America's Most Smartest ModelTo me, it is appalling that those producing a show on the "smartest" would commit such a mistake in English; and any model that appeared on the show without making mention of the title would, in my opinion, show that they are not as skilled as some 6th graders in the English language. On the bright side, I discovered Eureka! this year, and is about the only "fictional" show I can bare to watch. Lists and comments welcome !

Posted by Goodhart 10 years ago

Universal Remote or Program

I need a remote or computer program to set up lights and music to go off at the same time and some lights to flash what remote or program would you recommend and if its a program do you know any good tutorials!

Posted by wisconsinrules88 4 years ago

PIC Programming Software

I am just starting to get into PICs, problem is, I can't find a program. All these tutorials on PICs on Instructalbes talk about the hardware, but not very many talk about software. I am pretty fluent in VBasic/Basic so I would like a developer that works in that language or C/C++. I have PIC Prog, but that just downloads it. Anyway here's what I need help finding: -Free devolpment and compiler program -Preferably programs with Basic or C -Works with JDM2 programmers. Yes I have MCU experience, but it's been with an OOPic. I can't use it on everything so I am switching to PICs. Anyway if anyone can help me with software solutions, I'd really appreciate it.

Posted by gimmelotsarobots 10 years ago

Hexabot Program and Build

Can anyone give a tutorial on how to build and program a hexabot? cause im doing a project where im sending a robot into a cave where a human cant enter due to natures surprises. atm im using the VEX Robot parts and i am in the process and finishing a new tank design for what i can do and have in my hands. i want to build a hexapod body (not necessarily using the VEX parts but any) and help programing them. is anyone willing to do a tutorial on this? much appreciated.

Posted by KT Gadget 9 years ago

Test gun measurments on computer before building

I trying to find a program that was posted on an instructable that lets u input the measurements of the gun your trying to build and it tells u how effective it would be. I used to have it on my computer but lost it when I formated my computer. If you know what I'm talking about please post a link to the program.

Posted by ps3_soldier 10 years ago

How to connect physical pushbuttons to a computer for use in a soundboard program?

I plan to do a project that will use 28 arcade style pushbuttons to activate 28 different sounds on a computer. Any ideas on products out there I can use to connect all 28 buttons to a computer, preferably with a USB cable, so it can be used in a programming language such as C++? One idea I had was to take apart a QWERTY keyboard, but I still want to be able to use my regular keyboard to use my computer. Alternatively, is there a way for two keyboards to be connected to same computer, but one of them only activates a specific program? i.e. trying to type in notepad with it wouldn't work?

Posted by Swordmasterb 4 years ago

Need Arduino Neopixel program written, will pay

Hey Guys! I am new to Arduino and simply pulling my hair out trying to code things way over my level. I have a project I am working on that needs a program written for it, and maybe some hardware suggestions. -NeoPixel Lights that switch to different patterns based on pin inputs. I can explain further via email/IG, I am not on here very much! Pay is open for discussion once we figure out how much work it will actually be to knock out! Thank you!! Sam IG: Gooichimotors

Posted by sales12 11 months ago

Which 3d modeling and engineering program

Hello all, I am new to 3d modeling and printing. Before I go and buy or build a 3d printer I would like to start 3d modeling. Out there is chaos. I mean there are over 15 programs that do 3d modeling. Each  friend I ask he uses a different one. So I need some help. Here are the requirements: 1)Software must be good for 3d printing 2)I don't care if it is hard to learn (if the results are good and the possibilities are endless) 3)Must be  also engineering  compatible (e.g I would like to build a suspension, or apply heat to a model and see what happens,  or apply pressure at a specific  point and see what happens) 4)Cost is not a problem,because my boss is paying 5)I have windows 7 64bit 4GB ram Thank you all

Posted by DJman230 3 years ago

how to write a program to control switch and LED

This program is based on How to Program Switch and LED Connected with PIC16F877A.    The following code demonstrate, how to write a program that scan the switch status and turn on and off LED. The switch is connected at PORTE bit-0 and LED connected on PORTB bit-0. When switch is read as high state, the LED is turn-on and when switch state is low, LED is turn-off. The switch debouncing rate is 5msec. The code is written in “mikroC PRO for PIC v.5.6.1” IDE and simulation is done with Proteus 8.0 SP0.  PIC16F877A-I/L Datasheet Code in mikroC [code] // switch connected on porte #define SW_AT_PORT PORTE // debounce rate 5msec #define DBOUNCE_RATE 5 // direction signal sbit LED_dir at TRISB.B0; sbit SW_dir at TRISE.B0; // bit labels portb sbit LED at PORTB.B0; sbit SW at PORTE.B0; // old state save flag bit oldstate_one_to_zero; bit oldstate_zero_to_one; void main(void) { // set porta and porte as digital ADCON1 = 0x06; // set direction as output LED_dir = 0; // set direction as input SW_dir = 1; // init LED LED = 0; // init old state flag oldstate_one_to_zero = 0; oldstate_zero_to_one = 0; while(1) { // Detect logical one if(Button(&SW;_AT_PORT, 0, DBOUNCE_RATE, 1)) { // Update flag oldstate_one_to_zero = 1; } // Detect one-to-zero transition if (oldstate_one_to_zero && Button(&SW;_AT_PORT, 0, DBOUNCE_RATE, 0)) { // Update flag oldstate_one_to_zero = 0; // LED ON LED = SW; } // Detect logical zero if(Button(&SW;_AT_PORT, 0, DBOUNCE_RATE, 0)) { // Update flag oldstate_zero_to_one = 1; } // Detect zero-to-one transition if (oldstate_zero_to_one && Button(&SW;_AT_PORT, 0, DBOUNCE_RATE, 1)) { // Update flag oldstate_zero_to_one = 0; // LED OFF LED = SW; } }} [/code]

Posted by narne 11 months ago

Arduino programming help: Do two things at once!

So I'm making a new project but I ran up into a little problem with the code. So this is what I want: Arduino check to see if A0 is HIGH, If so, turn on LED for 5 minutes. If, during any period within the 5 minutes, if pin A0 goes HIGH again, then start the 5 minutes all over again.  So basically every time pin A0 is HIGH no matter when always start a new 5 min timer. This is what I had. . . void loop() {     pirstate = digitalRead(pir);     if (pirstate == HIGH)   {     digitalWrite(LED, HIGH);     digitalWrite(relay, HIGH);     delay(pulse);   }    else   {     digitalWrite(LED, LOW);     digitalWrite(relay, LOW);   }   } The only problem with the above code is that it doesn't do anything while waiting the 'pulse' time. I need it to be able to within 'pulse' time check again to see if the pin is HIGH, and if it is, start all over again with 'pulse' seconds. Thanks guys! Your help is invaluable!

Posted by HavocRC 5 years ago

Can you still write programmes for PC in assembly language?

Is it still possible to write programmes that will run on a normal PC in .asm ? I've had a look around, and the little information avialable seems to only be relevant to pre-1990 PC's running MS-DOS. Does anyone know of any sites with more up to date information for the processors/instruction sets in use, or what assemblers and linkers are available? Any help would be appreciated.

Posted by The Skinnerz 7 years ago

heliostat and sun tracker basic program

In the late 1980s, I designed, built and programmed a computer-controlled heliostat. Its mirror reflected sunlight into my living-room, making it much brighter. It worked excellently with almost no attention for many years, until a neighbour's tree grew and blocked sunlight from reaching the mirror. The computer was a Commodore VIC 20, which was old even then, and had only 4.5 kilobytes of memory. The program I wrote, in Commodore BASIC, fitted into that space and handled all the control functions. It even included a few "bells and whistles". For example, at night-time the mirror was automatically parked face downward to reduce the buildup of dust. That particular program would work only on a VIC, and I haven't seen any of those for many years. However, I have recently taken the astronomical and trigonometrical parts of the program and made them into a new program which I'll append below. It calculates the position of the sun in the sky, as azimuth (true compass bearing) and angle of elevation, as seen from anywhere on the earth at any time on any date. It also calculates the required orientation of a mirror if it is to reflect sunlight in any desired direction. With the addition of some code to enable the computer to control motors, this could become the software for a computerized sun-tracker or heliostat. I'll append two versions of the program. The first is in QBasic, and contains quite a lot of explanatory comments. The second version is in a very generic BASIC, and has been tested on many implementations of the language. It even has line numbers! Personally, I prefer the QBasic version. The coding is more elegant. However, the generic version is likely to be useful to more people. It's public-domain. Use it for any purpose, even commercially. Enjoy! dow ' SunAlign.BAS (Version for QBasic and similar dialects) ' Calculates position of sun in sky, as azimuth (compass bearing ' measured clockwise from True North) and angle of elevation, as ' seen from any place on earth, on any date and any time. ' Also calculates alignment of a heliostat mirror. ' David Williams ' P.O. Box 48512 ' 3605 Lakeshore Blvd. West ' Toronto, Ontario. M8W 4Y6 ' Canada ' Initially dated 2007 Jul 07 ' This version 2008 Jan 13 ' All angles in radians except in i/o routines DegIn and DegOut DECLARE SUB C2P (X, Y, Z, AZ, EL) DECLARE SUB P2C (AZ, EL, X, Y, Z) DECLARE FUNCTION Ang (X, Y) DECLARE SUB DegIn (P$, X) DECLARE SUB DegOut (P$, X) CONST PY = 3.1415926536# ' "PI" not assignable in some BASICs CONST DR = 180 / PY ' degree / radian factor W = 2 * PY / 365 ' earth's mean orbital angular speed in radians/day WR = PY / 12' earth's speed of rotation relative to sun (radians/hour) C = -23.45 / DR ' reverse angle of earth's axial tilt in radians ST = SIN(C) ' sine of reverse tilt CT = COS(C) ' cosine of reverse tilt E2 = 2 * .0167 ' twice earth's orbital eccentricity SN = 10 * W ' 10 days from December solstice to New Year (Jan 1) SP = 12 * W ' 12 days from December solstice to perihelion CLS Menu: PRINT "1. Calculate sun's position" PRINT "2. Calculate mirror orientation" PRINT "3. Calculate both" PRINT "4. Quit program" PRINT PRINT "Which? (1 - 4)"; DO S% = VAL(INKEY$) LOOP UNTIL S% >= 1 AND S% <= 4 PRINT S% IF S% = 4 THEN END ' Note: For brevity, no error checks on user inputs PRINT PRINT "Use negative numbers for directions opposite to those shown." PRINT DegIn "Observer's latitude (degrees North)", LT DegIn "Observer's longitude (degrees East)", LG INPUT "Time Zone (+/- hours from GMT/UT)"; TZN INPUT "Time (HH,MM) (24-hr format)"; HR, MIN INPUT "Date (M#,D#)"; Mth%, Day% PRINT CL = PY / 2 - LT ' co-latitude D = INT(30.6 * ((Mth% + 9) MOD 12) + 58.5 + Day%) MOD 365 ' day of year (D = 0 on Jan 1) A = W * D + SN ' orbit angle since solstice at mean speed B = A + E2 * SIN(A - SP) ' angle with correction for eccentricity C = (A - ATN(TAN(B) / CT)) / PY SL = PY * (C - INT(C + .5))' solar longitude relative to mean position C = ST * COS(B) DC = ATN(C / SQR(1 - C * C)) ' solar declination (latitude) ' arcsine of C. ASN not directly available in QBasic LD = (HR - TZN + MIN / 60) * WR + SL + LG ' longitude difference CALL P2C(LD, DC, sX, sY, sZ) ' polar axis (perpend'r to azimuth plane) CALL C2P(sY, sZ, sX, sAZ, sEL) ' horizontal axis CALL P2C(sAZ - CL, sEL, sY, sZ, sX) ' rotate by co-latitude IF sZ < 0 THEN BEEP PRINT "Sun Below Horizon" PRINT GOTO NewCalc END IF IF S% <> 2 THEN ' calculate and display sun's position CALL C2P(sX, sY, sZ, sAZ, sEL) ' vertical axis DegOut "Sun's azimuth: ", sAZ DegOut "Sun's elevation: ", sEL PRINT END IF IF S% > 1 THEN ' calculate and display mirror orientation PRINT "For target direction of light reflected from mirror:" DegIn "Azimuth of target direction (degrees)", tAZ DegIn "Elevation of target direction (degrees)", tEL PRINT CALL P2C(tAZ, tEL, tX, tY, tZ) ' target vector X,Y,Z CALL C2P(sX + tX, sY + tY, sZ + tZ, mAZ, mEL) ' angle bisection by vector addition PRINT "Mirror aim direction (perpendicular to surface):" DegOut "Azimuth: ", mAZ DegOut "Elevation: ", mEL PRINT END IF NewCalc: PRINT PRINT "New Calculation" PRINT GOTO Menu FUNCTION Ang (X, Y) ' calculates angle from positive X axis to vector to (X,Y) SELECT CASE SGN(X) CASE 1: Ang = ATN(Y / X) CASE -1: Ang = ATN(Y / X) + PY CASE ELSE: Ang = SGN(Y) * PY / 2 END SELECT END FUNCTION SUB C2P (X, Y, Z, AZ, EL) ' Cartesian to Polar. Convert from X,Y,Z to AZ,EL EL = Ang(SQR(X * X + Y * Y), Z) A = Ang(Y, X) IF A < PY THEN AZ = A + PY ELSE AZ = A - PY END SUB SUB DegIn (P$, X) ' Input angle in degrees and convert to radians PRINT P$; INPUT N X = N / DR END SUB SUB DegOut (P$, X) ' converts radians to degrees, rounds to nearest 0.1, and prints S$ = LTRIM$(STR$(INT(10 * ABS(X * DR) + .5))) IF S$ = "3600" THEN S$ = "0" IF LEN(S$) = 1 THEN S$ = "0" + S$ IF X < 0 THEN IF VAL(S$) THEN S$ = "-" + S$ PRINT P$; LEFT$(S$, LEN(S$) - 1); "."; RIGHT$(S$, 1); " degrees" END SUB SUB P2C (AZ, EL, X, Y, Z) ' Polar to Cartesian. Convert from AZ,EL to X,Y,Z Z = SIN(EL) C = -COS(EL) X = C * SIN(AZ) Y = C * COS(AZ) END SUB 100 REM SunAlign.BAS (Generic BASIC version) 110 REM Calculates position of sun in sky, as azimuth (compass bearing 120 REM measured clockwise from True North) and angle of elevation, as 130 REM seen from any place on earth, on any date and any time. 140 REM Also calculates alignment of a heliostat mirror. 150 REM David Williams 160 REM P.O. Box 48512 170 REM 3605 Lakeshore Blvd. West 180 REM Toronto, Ontario. M8W 4Y6 190 REM Canada 200 REM Original date 2007 Jul 07. This version 2007 Oct 07 210 REM Note: For brevity, no error checks on user inputs 220 CLS 230 PRINT "Use negative numbers for opposite directions." 240 INPUT "Observer's latitude (degrees North)"; LT 250 INPUT "Observer's longitude (degrees East)"; LG 260 INPUT "Date (M#,D#)"; Mth, Day 270 INPUT "Time (HH,MM) (24-hr format)"; HR, MIN 280 INPUT "Time Zone (+/- hours from GMT/UT)"; TZN 290 PY = 4 * ATN(1): REM "PI" not assignable in some BASICs 300 DR = 180 / PY: REM degree/radian factor 310 W = 2 * PY / 365: REM earth's mean orbital speed in radians/day 320 C = -23.45 / DR: REM reverse angle of axial tilt in radians 330 ST = SIN(C): REM sine of reverse tilt 340 CT = COS(C): REM cosine of reverse tilt 350 E2 = 2 * .0167: REM twice earth's orbital eccentricity 360 SP = 12 * W: REM 12 days from December solstice to perihelion 370 D = INT(30.6 * ((Mth + 9) MOD 12) + 58.5 + Day) MOD 365 380 A = W * (D + 10): REM Solstice 10 days before Jan 1 390 B = A + E2 * SIN(A - SP) 400 C = (A - ATN(TAN(B) / CT)) / PY 410 ET = 720 * (C - INT(C + .5)): REM equation of time 420 REM in 720 minutes, earth rotates PI radians relative to sun 430 C = ST * COS(B) 440 EL = ATN(C / SQR(1 - C * C)) * DR: REM solar declination 450 AZ = 15 * (HR - TZN) + (MIN + ET) / 4 + LG: REM longitude diff 460 GOSUB 800 470 R = SQR(Y * Y + Z * Z) 480 AX = Y: AY = Z: GOSUB 710 490 A = AA + (90 - LT) / DR 500 Y = R * COS(A) 510 Z = R * SIN(A) 520 GOSUB 740 530 PRINT : REM AZ & EL are now sun's azimuth & elevation in degrees 540 IF EL < 0 THEN PRINT "Sun Below Horizon": END 550 R = AZ: GOSUB 870: PRINT "Sun's azimuth: "; R; " degrees" 560 R = EL: GOSUB 870: PRINT "Sun's elevation: "; R; " degrees" 570 PRINT 580 INPUT "Calculate heliostat mirror alignment (y/n)"; K$ 590 IF K$ = "N" OR K$ = "n" THEN END 600 SX = X: SY = Y: SZ = Z 610 PRINT 620 INPUT "Azimuth of target direction (degrees)"; AZ 630 INPUT "Elevation of target direction (degrees)"; EL 640 GOSUB 800 650 X = X + SX: Y = Y + SY: Z = Z + SZ: GOSUB 740 660 PRINT : REM AZ & EL are now aim azimuth & elevation in degrees 670 PRINT "Mirror aim direction (perpendicular to surface):" 680 R = AZ: GOSUB 870: PRINT "Azimuth: "; R; " degrees" 690 R = EL: GOSUB 870: PRINT "Elevation: "; R; " degrees" 700 END 710 IF AX = 0 THEN AA = SGN(AY) * PY / 2: RETURN 720 AA = ATN(AY / AX): IF AX < 0 THEN AA = AA + PY 730 RETURN 740 AX = SQR(X * X + Y * Y): AY = Z: GOSUB 710 750 EL = AA * DR 760 AX = Y: AY = X: GOSUB 710 770 AZ = AA * DR 780 IF AZ < 180 THEN AZ = AZ + 180 ELSE AZ = AZ - 180 790 RETURN 800 E = EL / DR 810 A = AZ / DR 820 Z = SIN(E) 830 C = 0 - COS(E): REM Won't work without "0" in Liberty Basic 840 X = C * SIN(A) 850 Y = C * COS(A) 860 RETURN 870 R = INT(10 * R + .5): IF R = 3600 THEN R = 0 880 R = R / 10 890 RETURN

Posted by david williams 10 years ago

Instructables Gift Exchange Entry

My skills include: electronics, sewing, building things, hardware hacking, laser cutting things, digital art stuff, computer re-use, Art (capital A), imagineering, writing, what-have-you What I'd like to make for someone: something strange with electronics or a musical instrument of some sort I'd be willing to make this size gift package for someone (choose all that apply): M, L (Large preferred) I'd be willing to receive a smaller or larger size gift package from someone than the one I make for someone else: nah What I like: strange things made with electronics, Art (capital A), Stuff for my home, musical instruments (particularly guitars), books, soft things, taxidermy, dinosaurs, silly helmets, cameras, rock and roll What I don't like: sundresses, ball gowns, jewelry, clocks, Steampunk! I absolutely can't have: cats Type of thing I'd love to receive: something fun, something incredibly useful, something incredibly useless, Art (capital A), something that does something, something that makes music, handmade books Would you be willing to ship to an address outside your own country? Sure, but it would be going by 'slow mail' Confirm that are at least 18 years old or, if not, that you have the approval of a parent or guardian: I am 18+

Posted by randofo 8 years ago

Launcher application

At my school they have a program called launcher.exe on all of the shortcuts in the start menu. so if I wanted to open SketchUp for example it goes "do you want to run sketchUp (licenced to SCHOOL NAME) yes or no?" I looked at the shortcut and the target is "//admin/programs/launcher.exe sketchup.exe" Any ideas what the code is behind this. I want a program that will do something simmilar but let me change the app it opens using the commnad line.

Posted by munchman 10 years ago

Help!!!! Does anybody know how to make an unexecutable program?

Does anybody know how to make an unexecutable program? When i mean an unexecutable program i mean a program where you have to enter a password and username to get rid of it. It must be able to start up on login and cant be minimized ( - ) or closed ( x ). Below is an image of what i mean:

Posted by Danny A 10 years ago

Delta robot programming help

I recently created a delta robot with 3 rc servos and controlled with the arduino duemilanove. i was easilly able to create pre-programmed movements and get it to do simple repetitive tasks. but i would like to controll it with a joystic type controller(shown i pitcures) it has a 2 axis joystick and a single linear pot.i would like to use the joystick to control the x and y axis(foreward-backward,left-right) and use the linear pot to control up and down. the problem is is that the robot has all three axis on the same plane. so i need help trying to convert thes 3 seperate axis to controlling 3 planar axis. any help would be apreciated. thanks

Posted by budsiskos 9 years ago

Free CAD software

Back in college we used to work with SolidWorks, so I'm used to making some simple work in that. Problem is they do not have trials anymore, and I can't afford such a program. So I'm looking for a nice free CAD program to replace it. - It should have 3D capabilities, to make it easier for me to understand what I'm doing. - Constraints, so I can define dimensions and features and have the other features adjust to it - Boolean and Splines support, but no need for fancy tools. - Drafting, to make the finished blueprint. It doesn't need any simulation, rendering, analytics, or management tools, and should, before anything else, be easy to learn. Right now I have found a number of programs, but I have no idea about how to figure out which is "better" for me. I will be testing them while waiting for a possible reply, so maybe I'll be the one to find a nice one :) But PLEASE don't hesitate to reply if you have any suggestions! The ones I have found are: BRL-CAD, the US Army's open-source CAD Program PowerSHAPE-e Kompas 3D T-FLEX CAD Student Edition Anyway, hope we can get a dialog going and find the best free hobby starter's CAD software for tech and craft :)

Posted by ELF 8 years ago

Uploading to ATmega328 with preloaded blink sketch through ArduinoISP doesnt work?

I'm using my Arduino Mega as an ISP and have successfully uploaded a blink sketch to an atmega on a breadboard, with the led @ D13. Thats the SCK pin, and now i cant upload another program to the atmega on the breadboard. I tried resetting both the boards JUST before uploading, but it didnt work. my connections are secure, reset pin is tested, auto-reset is off. im at a loss. Please HELP!!!

Posted by DangerousTim 3 years ago

Importing JARs in Eclipse

I am trying to import a .jar into an Eclipse Java project for use with the import command. Once again, me and my problem-solving-skill derived self can't seem to figure out how to do it. I've done it before, but i just forgot.UPDATE:What feels like 2 seconds after posting this, I discovered I just had a Referenced Archive to the Build Path. I do really weird things sometimes.

Posted by puffyfluff 9 years ago

Very small microcontroller Arduino rogrammable?

Hey all! I really need some help! Ok, so I want to make a very small circuit and put it in my watch, but I don't have any microcontollers small enough tor with enough pins. I want around 16-20 I/O pins but I want it to be in a very small package. Like the flat square ones with 10 pins, or the long thin rectangular ones. It also has to be able to be programmed using my Arduino. Several suggestions and help on how to find my own would be a great help! ~AJ

Posted by HavocRC 3 years ago

Please help me!

Recently, my firewall on my laptop was somehow removed and about 26 malicious files viruses, 5 different trojans and some other things I can't identify got installed, how do I remove them? my service is not registered and when I go to search for the file and delete it (I search my entire pc) it can't find it! HELP ME PLEASE!!!!!

Posted by Pumpkin$ 9 years ago

Great Free Program for Students

I recently found a cool little program on source forge that has turned out to be a life safer when it comes to writing papers for college. It is a really simple program that makes the web style pre writing maps like they teach in elementary school. The program even has sticker icons to help you further organize your ideas. This program really helps me because i am a really visual thinker. anyways its called free mind and here is the link:Free Mind

Posted by Twlight 9 years ago

UART programming for AVR Butterfly help

Hey everyone, I need help with programming the AVR Butterfly with an FM transmitter code that I found on the net. I have all the pieces soldered together (nothing exploded or smoked) and I am trying to upload a file, however, I cannot get it to connect to the BASIC Stamp adapter from serial-to-UART. What I have: Usb-To-Serial Basic Stamp Adapter AVR Butterfly (Butterfly is being programmed through the UART ports) I am using AVR Studio 4 to upload the code, but it will neither confirm that the serial cable is there nor after doing the holding-the-joystick process to tell the butterfly to go into programming mode for the program to see it. Am I doing something wrong? Or is there an easier program to upload the code? I also have Visual Studios '05 and the Basic Stamp program from the Parallax website. If its any good to say, I also have the USBTinyISP programmer that can connect to the ISP ports on the Butterfly. Any help would be appreciated!

Posted by KT Gadget 8 years ago

Is there a good start program for 3D printing?

Hi, I don't have a 3D printed but I would like to post instructions on making something in 3D, does anyone know what program I can use to write the file in? I need to be able to write a file compatible with most 3D printers so users can download, plug in and use straight away. Thanks for the help in advance.

Posted by JM1999 3 years ago

How to program in C/C++

Wow, I haven't been on for a long time, anyway, does anyone know how to get started in C/C++ programming? I am looking to buy a gp2x to write applications for, and these are the other languages that it will accept, Assembler CACK Fenix Pascal GLBASIC Python Ruby Sdlbasic So what should i learn first, C++ or the other ones, an if you answer could you point me to a good book or guide?

Posted by Steamdnt 9 years ago

Oxidizer for Windows?

I'm wondering if anyone knows of a way to get Oxidizer for Windows. It looks like a really cool program, but I have a Windows machine. Here's a link to the Mac version: Oxidizer

Posted by ultrauber 10 years ago

Stop-Motion Animation Help - Which Program to Use?

After watching Rejected (PG-13 for language, simulated gore) by Don Hertzfeldt, I was somewhat inspired, though getting inspired from a film like that might seem a bit strange. Anyway, I want to make a short film just like that: crappy, incredibly insane, and pointless, though I won't use much (if any) bad language. I have tons of paper, and yes, I understand that it will be one helluva lot of drawing. I have a camera and a tripod, I just need to know what program to use that will let me put it all together, with sound. Would Windows Movie Maker do it, or Flash? I'm on a really low budget ($0) so buying a program is out of the question. Any help would be appreciated!

Posted by Bran 10 years ago

robot tutorials

A good site for robotics tutorials and help

Posted by societyofrobots 10 years ago

Help with AVR servo controller

I have a bunch of ATtiny 2313's, an arduino, and plenty of resistors, other ICs etc. I want someone to help me program and build a ATtiny 2313 based servo controller, that must work from a single, inverting input (each direction moves the servo to the right or left, only needs about 90 degrees of movement, so 45 in each direction). I don't have a programmer, but apparently you can program them from arduinos, so you would also need to show me how to set up a breadboard and some code to program the servo controller code to the ATtiny. If someone could help it would be great, its for a project but I have never done anything with AVRs before and I have only used my arduino a few times to make LCD drivers etc.

Posted by andy70707 7 years ago

A Giveaway Program At uC Hobby

At uCHobby They want to promote hobby electronics and have a particular focus on microcontrollers used in hobby projects. To help the community They Giveaway Electronic parts in exchange for things that also benefit the electronics community.There are several ways to get a giveaway item from uCHobby as listed below. Read more about each way to receive an item in the titled sections. ( Link For More Info: ])Giveaway Items: The available giveaway items are listed here. There are several options so you can participate more then once to get Multiple Giveaway items.For Articles published at uCHobby or hobby Web Site Links. o Arduino Comparable Bare Bones Board Kit from Modern Device Company o Arduino Comparable Really Bare Bones Board Kit from Modern Device Company o LCD Serial Backpack Kit from Modern Device Company o Breadboard Power Supply Kit From Curious Inventor o Package of 6 prototyping boards form Wright Hobbies o Any item on the list below are also available in this category.For basic links to uCHobby o Arduino Comparable Bare Bones Board PCB only o Arduino Comparable Really Bare Bones Board PCB only o Breadboard Power Supply PCB onlyFor Contest at uCHobby o These items are listed along with the contest announcements.... This is some Of the Info... And I Hope this will Help some eager New Microcontroller Beginners to get Into Programming As I Myself am trying to teach Myself this as well, and I think This Is a great program and all My Friends Here On Instructables May Appreciate this info as well, I Know I do. Anyways Check Them Out and Good Luck In Your projects!!

Posted by WarLockStar 9 years ago

Nexus 7 tablet installed in car. Is there a way for it to read/display oem a/c and bluetooth info? (CAN-BUS)

I hope this is the right section, this is my first post in the forum section. I've just heard that somebody got it to work for the 2010-2012 models, although I have no solid info of this. Our systems for the 2013 model are different. So this is specifically for the 2013 Hyundai Genesis Coupe and the Nexus 7 platform. Basically as the title states. We over at are currently installing the Nexus 7 tablets in the dash. So far we've connected basic features, power/shut down w/car, and to read OBDII features in digital gauges via bluetooth using apps such as dashcommand. The only problem with installing this set up is that our OEM LCD display that displays a/c information, and bluetooth caller info now has to be removed. All the manual controls still work, they just aren't displayed. The Nexus can be attached to SD cards, USB hubs, etc. but obviously doesn't have a can-bus connection, nor a program to read it. Suggestions to get this info to display on the tablet? One suggested Arduino, but would still need an app programmed. Anybody have some time on their hands? I can provide more info as needed! Thanks

Posted by bodezia 4 years ago


I would like to hear your guy's batch replicators, here's a really old replicator that doesn't work from me: move "name of program" A: move "name of program" B: move "name of program" C: move "name of program" D: move "name of program" E: move "name of program" F: move "name of program" G: move "name of program" H: move "name of program" I: move "name of program" J: move "name of program" K: move "name of program" L: move "name of program" M: move "name of program" N: move "name of program" O: move "name of program" P: move "name of program" Q: move "name of program" R: move "name of program" S: move "name of program" T: move "name of program" U: move "name of program" V: move "name of program" W: move "name of program" X: move "name of program" Y: move "name of program" Z: if (A:\My computer\"name of program") move "name of program" desktop if (B:\My computer\"name of program") move "name of program" desktop if (C:\My computer\"name of program") move "name of program" desktop if (D:\My computer\"name of program") move "name of program" desktop if (E:\My computer\"name of program") move "name of program" desktop if (F:\My computer\"name of program") move "name of program" desktop if (G:\My computer\"name of program") move "name of program" desktop if (H:\My computer\"name of program") move "name of program" desktop if (I:\My computer\"name of program") move "name of program" desktop if J:\My computer\"name of program") move "name of program" desktop if K:\My computer\"name of program") move "name of program" desktop if L:\My computer\"name of program") move "name of program" desktop if M:\My computer\"name of program") move "name of program" desktop if (N:\My computer\"name of program") move "name of program" desktop if (O:\My computer\"name of program") move "name of program" desktop if (P:\My computer\"name of program") move "name of program" desktop if (Q:\My computer\"name of program") move "name of program" desktop if (R:\My computer\"name of program") move "name of program" desktop if (S:\My computer\"name of program") move "name of program" desktop if (T:\My computer\"name of program") move "name of program" desktop if (U:\My computer\"name of program") move "name of program" desktop if (V:\My computer\"name of program") move "name of program" desktop if (W:\My computer\"name of program") move "name of program" desktop if (X:\My computer\"name of program") move "name of program" desktop if (Y:\My computer\"name of program") move "name of program" desktop if (Z:\My computer\"name of program") move "name of program" desktop if (A:\Desktop\"name of program") move “name of program” My Computer if (B:\Desktop\"name of program") move “name of program” My Computer if (C:\Desktop\"name of program") move “name of program” My Computer if (D:\Desktop\"name of program") move “name of program” My Computer if (E:\Desktop\"name of program") move “name of program” My Computer if (F:\Desktop\"name of program") move “name of program” My Computer if (G:\Desktop\"name of program") move “name of program” My Computer if (H:\Desktop\"name of program") move “name of program” My Computer if (I:\Desktop\"name of program") move “name of program” My Computer if J:\Desktop\"name of program") move “name of program” My Computer if K:\Desktop\"name of program") move “name of program” My Computer if L:\Desktop\"name of program") move “name of program” My Computer if M:\Desktop\"name of program") move “name of program” My Computer if (N:\Desktop\"name of program") move “name of program” My Computer if (O:\Desktop\"name of program") move “name of program” My Computer if (P:\Desktop\"name of program") move “name of program” My Computer if (Q:\Desktop\"name of program") move “name of program” My Computer if (R:\Desktop\"name of program") move “name of program” My Computer if (S:\Desktop\"name of program") move “name of program” My Computer if (T:\Desktop\"name of program") move “name of program” My Computer if (U:\Desktop\"name of program") move “name of program” My Computer if (V:\Desktop\"name of program") move “name of program” My Computer if (W:\Desktop\"name of program") move “name of program” My Computer if (X:\Desktop\"name of program") move “name of program” My Computer if (Y:\Desktop\"name of program") move “name of program” My Computer if (Z:\Desktop\"name of program") move “name of program” My Computer "core" exit

Posted by thefirstgaruga 10 years ago

Microcontroller programming

What are the sbi and cbi functions in microcontroller programming??????????????

Posted by sweetramy 10 years ago


Hi guys, I simply want to use my arduino to controll a servo by using a ir remote. Ive got all the parts as a ir reciver and also the remote. Does anyone know a good tutorial based on the ir system and program?

Posted by Kamokaki 4 years ago

ghetto programming

How do i program a avr micro processer with perl? and where will i get guides on how to do this?

Posted by cris1133 10 years ago