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Hi, I know that the title may not be the best description of what I'm trying to accomplish but hear me out. Me and few friends decided that we are going to have a competition in building the best autonomous racing robot. Our goal is to build a large obstacle course, set a general route through it and let our robots make the most efficient and fastest path while avoiding obstacles. All of this is supposed to happend outdoors in area which size equates to around 100 m2. We are not complete noobies in making autonomous stuff and all have experience in machine learning, small electronics , motors etc. But one thing we disagree about is the requirements for our outside navigation systems. We are having trouble choosing between normal cameras,stereo cams, lidar, gps, ultrasonic sensors, all of those?? Even tho our project is complicated we are still trying to keep our costs down. So I'm looking for an advice from someone with more experience. What combinations or a singular part should we choose as our navigation+obstacle detection system for our project? I'm really looking forward to your answers. Thank you.
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- machine learning
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So I traded my old laptop for an RC short course truck. Associated SC10. It has a Novak Edge ESC, Novak 17.5 brushless motor 4600mah 2s 100c shorty lipo, and all the goodies. It's currently set up for racing. The guy told me its around a $400 setup. So my mom gets home and I go to show her. She Hates RC stuff. Every RC I've ever had I ended up breaking. So I go to plug the battery in so I can show her how fast it is and all that. Connect one terminal, then the other, aaand POOF. ESC is cooked. My dumbass is standing there MAKING SURE that it's connected the right way as I plug in the first connector. I guess I thought the positive was the negative and plugged the shit in backwards. I need a job if this keeps up. Good lord.
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Hello fellow internauts! I already have some experience with RC (2 fixed wings, a 250 CP heli, and a 500 DIY quad). However I have been out of the trade for almost a year, and I would really like to try out mini quads. In short I would like to get your recommendations for a good mini quad kit (or parts). I already have a programmable radio, good charger, and basic FPV set. Unfortunately I only have about 250 USD to spend on the craft + batteries (screw the mexican peso!). If the parts can be from hobbyking that would be even better since it is easier to get them to Mexico. If you think I should just save some money, then that is a possibility too. Thanks in advance!
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I bought a kit from a local company in India and list of components available with me is attached below. I'll be powering arduino with standard 9v battery. So I want to drive two motors from a Canon printer with 4*4v-1Ah batteries (pic attached) which obviously can't run with a H-bridge so I found the alternate which is Motor Shield, but I can't afford the arduino rev3 as I'll have to import that and other s use up all the pins which is not good so I found this(link below). Also for using it with WiFi I either can use Ethernet shield (with a Pocket router and custom made webpage) or WiFi card (Idk which)(links below). Amazon links- https://www.amazon.in/gp/aw/d/B00AXVX5D0/ref=ox_sc_act_image_1?ie=UTF8&psc=1&smid=A31PUIOPHJ56Y3 https://www.amazon.in/gp/aw/d/B01M6U29UL/ref=ox_sc_act_image_2?ie=UTF8&psc=1&smid=A3NY9VL3TSHL8J https://www.amazon.in/gp/aw/d/B019IJ8ECY/ref=ox_sc_act_image_3?ie=UTF8&psc=1&smid=A3H5F6BJA0G125 Will these work together? Also attached below is the GPIO extension IDK how to use it. Code to my current progress is below, where I've used PS2 stick, LCD, H bridge and servo (wired connection). Link to pics - https://goo.gl/photos/pBL4ruVn5tkFrHASA https://goo.gl/photos/5aQgxZqmF2WaV1749 Code - include <Servo.h> Servo myservo; include <LiquidCrystal.h> LiquidCrystal lcd(8, 9, 10, 11, 12, 13); int JoyStick_X = 0; int JoyStick_Y = 1; int JoyStick_Z = 1; int dir1PinA = 2; int dir2PinA = 3; int speedPinA = 6; int dir1PinB = 4; int dir2PinB = 5; int speedPinB = 7; int LowSpeed = 100; int MedSpeed = 170; int HighSpeed = 255; void setup(void) { myservo.attach(17); lcd.begin(16, 2); lcd.clear(); pinMode(JoyStick_Z, INPUT_PULLUP); Serial.begin(9600); pinMode(dir1PinA, OUTPUT); pinMode(dir2PinA, OUTPUT); pinMode(speedPinA, OUTPUT); pinMode(dir1PinB, OUTPUT); pinMode(dir2PinB, OUTPUT); pinMode(speedPinB, OUTPUT); } void loop(void) { int x, y, z; x = analogRead(JoyStick_X); y = analogRead(JoyStick_Y); z = digitalRead(JoyStick_Z); lcd.setCursor(0, 0); lcd.print("Car Status"); lcd.setCursor(0, 1); lcd.print("Spd:"); if (z == 0) { lcd.print("High"); } else if (x > 510 && x < 530) { lcd.print("No "); } else if (x > 530 && x < 730) { lcd.print("Low "); } else if (x > 730) { lcd.print("Med "); } else if (x < 510 && x > 250) { lcd.print("RLow"); } else if (x < 250) { lcd.print("RMed"); } lcd.print(" "); lcd.setCursor(10, 1); lcd.print("Trn:"); if (y < 500) { lcd.print("L "); } else if (525 > y && y > 500) { lcd.print("-"); } else if (y > 525) { lcd.print("R "); } lcd.setCursor(11, 0); lcd.print("Bst:"); if (z == 0) { lcd.print("Y"); } else { lcd.print("N"); } //________________Motor 1________________________ if (z == 0 && x > 10) { // Motor Forward High analogWrite(speedPinA, HighSpeed); digitalWrite(dir1PinA, LOW); digitalWrite(dir2PinA, HIGH); analogWrite(speedPinB, HighSpeed); digitalWrite(dir1PinB, LOW); digitalWrite(dir2PinB, HIGH); } else if (x > 530 && x < 730) {// Motor Forward Low analogWrite(speedPinA, LowSpeed);//Sets speed variable via PWM digitalWrite(dir1PinA, LOW); digitalWrite(dir2PinA, HIGH); analogWrite(speedPinB, LowSpeed);//Sets speed variable via PWM digitalWrite(dir1PinB, LOW); digitalWrite(dir2PinB, HIGH); } else if (x > 730) {// Motor Forward Med analogWrite(speedPinA, MedSpeed); digitalWrite(dir1PinA, LOW); digitalWrite(dir2PinA, HIGH); analogWrite(speedPinB, MedSpeed); digitalWrite(dir1PinB, LOW); digitalWrite(dir2PinB, HIGH); } else if (x > 510 && x < 530) {// Motor Stop analogWrite(speedPinA, 0); digitalWrite(dir1PinA, LOW); digitalWrite(dir2PinA, HIGH); analogWrite(speedPinB, 0); digitalWrite(dir1PinB, LOW); digitalWrite(dir2PinB, HIGH); } else if (x < 510 && x > 250) { // Motor Reverse Low analogWrite(speedPinA, LowSpeed); digitalWrite(dir1PinA, HIGH); digitalWrite(dir2PinA, LOW); analogWrite(speedPinB, LowSpeed); digitalWrite(dir1PinB, HIGH); digitalWrite(dir2PinB, LOW); } else if (x < 250 && x > 0) { // Motor Reverse Med analogWrite(speedPinA, MedSpeed); digitalWrite(dir1PinA, HIGH); digitalWrite(dir2PinA, LOW); analogWrite(speedPinB, MedSpeed); digitalWrite(dir1PinB, HIGH); digitalWrite(dir2PinB, LOW); } myservo.write(40 + y * 8.7890625 / 100); } Car__w_turn.ino
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I have an RC helicopter that's really nice, but the charger has a European plug on it. I have a usb cable with the same lead, but need a power brick to plug it into. I am very uneducated when it comes to electricity. The charger for the helicopter says 4.3V and 800mA. I have a brick that says 5V and 500mA, and my phone charger which says 5.2V and 2.4A. Can I use chargers with higher voltages and/or lower/higher amperages to charge the helicopter?
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Hi guys, I want to start project but I'm new in robotics (let's call this robotics) and I don't know where to start. I want to build functional model (realistic) of a tank. I want it to be as smallest as it can be. 1/6, 1/8 or less. I don't know what parts to used I know that I need a motor for moving tracks and one servo for a turret (top of the tank) but for main unit I don't want to spend a lot of money and I think Rpi 3 or 2 will be the best and I want video stream so I need camera but very small and wifi antena(question about wifi antena I want to know is there antena that looks like stiff but thin wire so it looks like radio antena of a tenk, or a very small one for inside of a tank). Where can I find a small camera because I don't want to buy one, what parts do I need and what size will it be, how many engines do I need to use and how many batteries or battery banks. Probably I will use wood for top and armor of a tank but I want to know how to make tracks. Thanks guys! Help please! P.S I am pretty sure that I want to copy one of theese tanks: T 34, Panzer Tiger I, King Tiger can get sugestions about tanks because I want good looking.
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I have a focus drone that has an issue with one of the motors. I found it in the trash so I've been trying to fix it. One of the rotors doesn't spin as smooth as the other three. I've taken it apart and cleaned out the hair and grass that was in some of the axles and cogwheels. It still produces a strained whining sound and it doesn't take off. I'm not sure if i should try a bit of lubricant or some loctite on the small cogwheel that sits on the motor.
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Hey, so I used to be really into the RC hobby when I was younger but I switched when I was probably 15 to computers since both are expensive hobbies, computers can be useful for more things, and so I left the RC hobby. I'm really interested in getting back into it but I'd feel weird driving an RC car as a 24 year old male by myself. I was wondering if anyone on here was in the greater Boston area or knew of any groups in the area I could talk to?
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Hi I was wondering if anyone had any knowledge on where to find spare parts for a 1989 Kyosho Nitro Thrasher, some of the rear differential gears are shredded so instead of having to turn it in to a locked differential with some glue i could fix it with parts.
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Hey guys. I have a traxxas slash. The Slash only came with a car charger because it charges faster (and for money). I'm tired of having to plug it into my car whenever I need to charge it. Traxxas offers an AC-to-DC converter for $20. I have seen other AC-to-DC converters for only $5. So my question is will any AC-to-DC converter work on my Traxxas Slash or will only the Traxxas brand AC-to-DC converter work (without damaging the car battery). I hope this makes sense. If there are any questions, ask me below. I would appreciate all knowledge and answers.
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- traxxas slash
- traxxas
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So I've had this idea for a long time, but haven't yet had time to do it. Basically the idea is to use low-gauge silicone wire instead of regular sleeved cables. I really like how thicker wires look like on stuff like RC or other high-current applications. I cut up some of my 12ga noodle and it fits perfectly in the holes of a molex connector. The holes of a 6 or 8 or 24 pin connector are slightly smaller, so those might require 14ga instead of 12 (or maybe just shave off a bit of the insulation for the part that enters the connector) The wire is thick enough to hold itself inside the connector very well, so no need for any heatshrink. Some people mentioned the lettering would be bad, and it may be possible to find black or red wire without lettering, but I would want to use white and all white RC wire has lettering. But, as you can see in the images, it is very easy to place the wires so that the lettering is invisible or maybe some people would like the lettering for detail, idk Here are some comparisons with regular PC cables, and some sleeved cables I had around: No PC component needs wire this thick for current, so normal PC wires are usually very thin, such as 18ga or higher What I like about silicone cables is how natural their curves are, and it is really easy to make them all low together without any need for sewing or cable clips So yeah that's my idea Hopefully in the future I will have time and money to make a full set of custom PSU cables, and I will use this method instead of going for the all-too-common sleeving. *PS- the wire used for this test was used previously, its not new, so just ignore the imperfections in the silicone and the dust Let me know your thoughts Thanks for reading!
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I'vs seen many 3D RC heli videos, but have never really seen any quadcopter ones. This looks soo hard to control vs a heli / plane. Makes me giggle just how rough he is with it.
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Does anyone know of some good online retailers to buy RC equipment in the UK? I'm looking at getting into hobby grade heli's but need a good source of parts etc.
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So I'm new to LiPo Batteries and I have some questions regarding their setup/maintenance/usage. Discharging is the process of lowering the cells 'charge' right? So what effect does this have and why would you do it? Does that decrease the 'voltage' or the 'mAH'? Am I right in thinking that as you are using the battery in an RC vehicle, you are effectively discharging it by decreasing the voltage? And if the voltage is decreasing the performance is decreasing because you have less volts? Wait...If you are 'discharing' a battery, are you are decreasing the mAH left on the battery or are you decreasing the voltage..or both..? What? Because I read 'capacity determines how long you can run before you have to recharge' but does that mean recharge the 'mAH' or the 'voltage'?
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Welcome to this forums new RC thread! (If this thread already exists then give me a link and il hop on to there!) Here anyone that has an intrest in Radio Contrioled vehicles of any kind can disscus there gear, upcoming events, give advice and sutch! You dont need to own any fancy gear or do pro RC racing to be here just have an intrest in this and your good to go I guess I can start this thread by telling you my history with RC things; when I was around 10 I got my first RC car it was a blue one with sortof a race car boddy with ofroad tires and some really springy independant suspention, I still have it but I havent used it in about 2 years now. After a couple of years my intrest in this hobby grew and I bought a Kyosho EP Fazer, I have used it a bit but its just not that good, I have hightend the suspention a tad and its more of a "rally" car now, later that year my dad got me a Trexxas EREVO VXL(the small 1:16 one) and I have had a bunch of fun with it seing as its water tight you can take it out in any weather and it kicks gravel like an absolute beast, I have slightly warn out the tires now tho so thats something I will be fixing some time in the future. Now a couple of years later I have acuired another car and its a "pice of poop" in quality compard to the other cars i have, but its fun, its a WLtoys Pathfinder and its basicly the RC car I have wanted since I begun the hobby, but it is right now sitting beside me, with a busted gearbox I made a rally cross corse on a gravel field just down the streat and I decided that running the course down some stairs wouldent be to bad, but after the final stair the back end hit the ground and it messed up the gearbox realy bad so now I need spare parts...(pictures of all my current gear can be posted upon request) Well thats my storry, I have always wanted an RC plane so if someone could suggest a maby 4 chanel one that would be something that could be disscused So if your interested in RC just hit the follow button on this thread and post away!
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My childhood is full of making rollercoasters in all the games. I miss the good ol' days. I must have spent 1000's of hours in those games. Does anyone still play these games? Are you excited for the new one or do you think it will be bad? A lot of modding support for rc 3. Launching people off not finished rollercoasters was the best. The do not enter signs were amazing.
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Welcome to the new LinusTechTips Hobby Grade Remote Control thread! **Please Don't Quote Pictures!** What is Hobby Grade RC? Hobby grade RC's are not toys. they are fairly costly and require maintenance. However, they are customizable and lots of fun to run! What is this thread for? Post about RC! Show off your vehicles, ask questions, really anything related I currently own two RC's: Redcat Racing Tornado EPX: It needs a new ESC and Motor, 2s Lipo(s) with a charger, new front bumper and a new carbon fiber spoiler assembly. Cool little buggy though for $200. Redcat Racing Volcano S30: Don't have any pictures at the moment, as its in pieces needs a new gearbox and exhaust pipe. Pictures soon!
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- rc
- remote control
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NCIX: http://bit.ly/1BEnmjO Amazon: http://geni.us/YOi The Parrot Bebop is one of the first drones Linus has had a significant amount of testing time with... Does it provide an amazing, user-friendly experience, or is it intended only for experienced drone pilots?
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Does anyone on the forums also enjoy flying/driving drones or rc vehicles if you do and you have one please post which ones i would love to see what other people on this forum have. i use to have the parrot ar drone (flew into a tree) rc truck with camera on it with live video feed octocopter airship
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I just thought i would share this with everyone a robot that can simulate a running human and be controlled and can reach speeds up to 40+- MPH