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esc

Picaxe bldc ESC Driver

Hello guys!

I'm brand new to letsmakerobots and newbie of picaxe world...so forgive me for the noob question.

how to program an esc

I am not knowing how to use a  picaxe28x1 to control the speed of an esc .I have seen the post of tomda888 regarding this which was no use to me. I have the following questions:-

1) how to attach the esc to the brushless motors?

2) where to attach the esc to picaxe 28x1?

3) what is the program to be entered?

 

 

any help will be appreciated

Thank You

 

Need help controlling Traxxas ESC and Servo with Arduino

I'm working on an autonomous ground vehicle, guided by a U-BLOX Neo 6m GPS Module, and HMC5883l compass.

The ESC connects to the 7.2 NiMH Battery pack and is supposed to be connected to a RC receiver with a standard 3 wire servo cable, it also provides 6 volt regulated power from the same cable. Because the power is too high for an Arduino, I used a separate 5 volt power supply for the rest of the electronics, except the steering servo. Using a separate power supply makes the ESC and servo uncontrollable, creating a lot of jitter.

[solved...sort of... works... far from perfect] How to properly control (arm+calibrate+command) an HK-20 ESC with arduino?

--- Solution ---

UPDATE: The below solution is NOT 100% reliable, sometimes I have to repeat the 90-10-20 process quite a few times up until I have a proper the ESC properly armed/calibrated. And when I say a few times I mean up to quite a few minutes with battery unplug/re-plug in-between. But now that the craft is mostly finished (I probably just need to tweak the aft side of the skirt), I'll revise my code yet again and see what I can do about it.

Navigate around via ultrasound
Using a
Hello again everybody my name is chickenparmi, and I like robots. Today I would like to show you my obstacle avoidance bot, with a difference. The difference with … Read more
UPDATE: got (some of) the videos up :) Not a robot yet, but kinda cool, so I thought I would share it. The Ugly Quad is a completly homemade quadcopter, built with … Read more

ESC + L293 + Brushless motor

So, i've been having some trouble lately and I can't seem to find a solution on the web. I've managed to controll a brushless motor through and ESC and arduino with PWM. Nothing too dificult. What I need now is a way to controll an inversion of the motor. Like you know, changing two of the wires from the motor makes it turn the other way around.

ESC

What is the difference between a 30 amp esc or a 20 amp esc. Is it the input or the output that is different? 

RC aircraft model

Well After a year joining LMR..

I have finally starded to work on the real reason to join LMR...

Make a RC aircraft...

I have got all the materials and dont tell me about the materials/requirements for that...

 

Just please suggest me designs.. for it... I had few designs in mind but after surfin the net and knowing there are so lots and loads of designs to make, I got confused..

 

I am using dapron.

I want designs.. not any part of electronics... 

Combat RC / ESC/BEC controllers and motors- Brushed and Brushless

Hey LMR I was hoping you could help me with a few questions the internet/google cannot fully teach me haha.

So I am thinking about maybe making a combat robot/battle bot (http://www.robotmarketplace.com/therobots.html) whatever you want to call it with some left over cash. So I have some questions on Brushless and Brushed motors.

What is the difference between Brushed and Brushless? So far I understand that one has three wires and the other two- +, - , brushless has a servo wire( to make it simple for me ;)    So what am I missing? Is one geared or what?

Update 1:   Its been almost a year since I post v1 of my robot. Wow! After being lost in RC world of airplanes, quadcopters and helis for a year I … Read more

rc plane electronics - as cheap as possible

hey.

im thinking about making a rc plane workshop for them local kids in the neighboorhood in copenhagen.

i have an ok understanding of the plane design but i miss general info of the electronics.

i would like to use as many salvaged, recycled or second hand materials as possible.

i have found the following kit for the electronics which is kinda cheap:

http://www.dealextreme.com/details.dx/sku.10780'

but its only the receiver and not the controller.

 

ESC says dont use above 3500mah battery

My ESC on the AGV says do not use a battery above 3500mah (something like that maybe a bit greater. I peeled the sticker off already)  with it. Well this limits my driving time, and i would like more. So i am wondering why would there be a limit like this on it? i thought current was asked for, why would there be a limit for how much could be supplied? I want to wire my batteries in parallel to get longer driving time, but am afraid to with this warning. Can i raise my current and lower my maximum speed?

pull things with intelligent traction control
Using a
What will it do? - Try to pull a heavy object for a given time or distance - RC with driving aid (Hybrid) Read more

The perfect recipe

Some say I know all about computers... Some say I love my hardware more than my girlfriend... All i know is that my desk is always filled with laptops with different OSes, wires, bare PCB's, components and an arduino. That sounds like the perfect recipe for a robot!

upgrading from small motor

Let's say I have a motor control circuit that's too small. It could be the motor output of a Picaxe, the adafruit motorshield for arduino or a the innards of an old RC toy. The main thing is that it has two output wires, both capable of delivering positive and negative to make a motor turn both ways.

What if you want to use a bigger motor that needs more power? Below are three circuit diagrams

motorkontrol.jpg

RC power for my picaxe

I'm using RC ESC's to drive the motors in my current robot project. These speed controllers has a built in power regulator (called a BEC) that is meant to power your RC receiver. I've measured and the voltage produced is a steady 5.03 Volts.

Can any of you think of a reason why I couldn't or shouldn't use this as power source for my Picaxe 28x1 ? 

 

Can't seem to insert hyperlinks with Opera browser on my old iMac, so here are a link if you wanna read more about RC ESCs or BECs

http://en.wikipedia.org/wiki/Electronic_speed_controller

finding cheap RC ESC (speed controller)

I love RC ESCs. They are electronic speed controllers that you connect to a servo output on a RC receiver or a micro controller, and they give you full step free control over a big motor in both direction. Most of the ones made for RC cars work in the voltage range 6-8.4Volts, but there are several alternatives for people who plan to run up to 24 volt motors in almost constant stall at a gazzilion amps (read robot war contenders).

But I'm the eternal cheapskate, and wants the cheapest there is.. So far I've found this