E011 7mm Newcomer - Now hacked for acro (file post 268)


#241

New comer here and getting into 7mm Whooping. Have a question because the info on flashing the eachine board is overwhelming and haven’t seen it mentioned. Can it be flashed with an Arduino?


#242

You need an stlink to flash it. They are a couple bucks on ebay. Canino did an awesome tutorial video after we got his flashed. I think @CRayTech did one too.


#243

Thats what I figured but thought I’d ask. I have one in my Amazon cart as we speak. Thank you :wink:


#244

Bad weather is approaching and I decided to convert my E011 to acro (4 month of reported project :wink: )
I already flashed SilverXXX firmware in the past on the mini H8 with no problems and it flew great but today impossible to flash a thing !

I always have this error while connecting via STM32 ST-LINK utility:

For sure it is impossible to erase the stock firmware in Keil:

My soldering is not the problem because I tried both connections:
1> Soldering pins on the 3 pads CLK, DAT, GND (reversed CLK and DAT)
2> Simple connector on the front pins SWCLK, SWDIO, GND

What do I do wrong ?
I have updated my ST link V2 with last firmware (V2.J28.S7)
I have uninstalled + installed again Keil + the ST LINK drivers (en.stsw-link009.zip)

Please help :flushed:

Edit : I also duplicate this post in rcgroups thread for maximum results


#245

OK problem solved and I give all the answer to that problem (thanks to @Yets on rcgroups ) :
Open up St-Link, go to Target down menu and find Option Bytes… Under option bytes change protection to 0. It should be set to 1, don’t change it to 2


#246

That’s great you got it going!


#247

No problem at all, glad you’re flying :slight_smile:


#248

And it flys !!!
I will try it tomorrow on FPV :blush:


#249

Hi. I tried a 150mAh battery from a broken Furibee F36 instead of the stock 260 mAh and the performance improvement is incredible. My camera is at about a 30 degree angle and I can give full throttle and pitch forward to the point where my camera is horizontal without losing altitude. I can only go about halfway with the stock battery. I can also do flips easily without losing much/any altitude, whereas I almost always touch the ground after a flip with the stock battery. I would have never imagined what a 2g difference can make. I was so disappointed with stock performance before this change. Just ordered 5 more 150 mAh batteries.

Didn’t mean to reply to anyone in particular. I’m new.


#250

First off … WELCOME @David !!

Love your report! You are absolutely right - weight is always key followed only by the condition of our components! Funny enough - I had quite the exact opposite experience with the 260 out performing the 150. I wonder if my 150’s and your 260’s are both just in poor shape. In fact I am quite positive my 150’s are at the end of their life cycle.

Also - there is some breaking news on the e011 silverware front. SilverXXX has found a way to increase the i2c speeds over 40% on the e011 flight controller. This is game changing news. Potentially dual mode firmware that flies as good as acro only… and maybe acro only that flies even better!!! I have not had a chance to download it or experiment with it yet but i will keep you all posted of my progress as I get to it!!!

This is REALLY BIG NEWS!! I’ll explain how this works and why as soon as I get a bit more time to sit down :wink:


#251

Here are the details from Silver
https://www.rcgroups.com/forums/showpost.php?p=38476418&postcount=11891


#252

Great news !!!
I will follow that carefully.
I just flew the thing with acro only notfastenuf firmrware and I like it better than my previous E010, beecore f3 with MMW motors ! I had less prop wash and that is great !
With my experience I flew first my old 200mAh whoop lipo but when I plugged my unique stock 260mAh waah the thing was almost more reactive and I doubled the flight time (almost 4mn). I have ordered the pack of 5 on Bgg for many more flights.
I will post a vid soon.
Thanks notfastenuf for share your work with us :slight_smile:


#253

That’s weird. My 150mAh batteries are a few months old while the 260mAh is a few days old.

Anyway, I think I’m done with tiny whoops. One of the motors on my E011 just seized up and it doesn’t spin anymore from a VERY minor crash. Similar things have happened to essentially all of my previous tiny quads (fried FC, etc). So far, I’ve gone through about 5 quads and 2 AIO cameras in 2 months. The components just seem far too delicate and the cost quickly adds up considering I spent $130 on my 5inch and I’ve had almost no issues with it in the same amount of time.


#254

Yeah I lost an e011 motor without crashing on 2 of them on the first day. Lol I feel your pain. I typically use the e011 fc flashed with silverware and in other builds where cheap brushed motors are available for 1$ each. That makes for cheap good flying fun.


#255

Where do you get $1 7mm brushless motors that are compatible with the E011? It might be worth to keep trying at that price.


#256

That I haven’t found yet. But there are boldclash 18kv for 6mm at 20 for 20$. 8.5mm hubsan replacements can be found on ebay or aliexpress 20 for 20$. These will be close to affordable when they come out
http://www.boldclash.com/boldclash-bwoop-b03-pro-05-716-70000rpm-4-2v-motor-with-jst-ph1-25-male-plug-p116.html
The bwhoop replacement motors are a decent option too… this was just the first link I found
https://www.ebay.com/p/716-53500rpm-3-7v-cw-ccw-motor-set-for-boldclash-bwhoop-03-rc-quadcopter-jst1/834633289?_trksid=p2047675.l2644
They’re probably out there on a 20pcs set too


#257

Awesome. The eBay ones looks promising. At the Bangood price of $3 per motor, the cost to replace them is unreasonably high. Replacing all4 would almost the price of the quadcopter. Thanks for the links. I guess I will give it another try. Hopefully there is a way to add Air mode because regular acro messes with my flips and I sometimes end up full throttle to the ground.


#258

There was a recent note on hit hub about adding idle up. I just do it in my transmitter.

I also just ordered a set of the bwhoop motors myself. I’m gonna put mine on a boss 7mm frame with some 50mm x9 props tho


#259

I need some guinea pigs to help me test this - no promises its perfect yet but looking for feedback. Particularly if you get a low PWM sound in your motors - about 1khz- ish sound

link removed - new link added lower

@Bobnova - please sir…


#260

Will give it a shot tonight. What sort of quad should it go into?