Search found 364 matches

by MarkR
Wed Apr 29, 2020 7:47 am
Forum: Antweights
Topic: The smart ant's and flea's
Replies: 100
Views: 104660

Re: The smart ant's and flea's

Congratulations. Good job!

Did you write any spec / doc? Is that the board with the chunky SMPS for 5v?

If you have trouble taking photos, try putting it on a flatbed scanner, I did that at some point (note: scanners have a very short depth of field)
by MarkR
Sat Apr 25, 2020 12:42 pm
Forum: Antweights
Topic: ESC with built-in receiver - interesting?
Replies: 65
Views: 22593

Re: ESC with built-in receiver - interesting?

I've done a demo of bind and configuring the channels here:

https://www.youtube.com/watch?v=s_AwJOI7Lnw
by MarkR
Fri Apr 24, 2020 8:16 pm
Forum: Antweights
Topic: ESC with built-in receiver - interesting?
Replies: 65
Views: 22593

Re: ESC with built-in receiver - interesting?

Yes, I abandoned that prototype and assembled another one. This now seems to mostly* work. I also took an earlier prototype and put it into a Antweight-sized test robot ("Bernard") and it drives pretty well. Additionally, the receiver in Bernard has working telemetry which gives battery vo...
by MarkR
Sun Apr 19, 2020 8:29 pm
Forum: Antweights
Topic: ESC with built-in receiver - interesting?
Replies: 65
Views: 22593

Re: ESC with built-in receiver - interesting?

Kyro, you are exactly right, pin 7&8 are connected on all of the motor driver chips. However, this isn't a design fault, it's actually supposed to be like that (they are the vcc and enable pin). The traces join and some solder tends to wick into that place. It's not a mistake. There were multipl...
by MarkR
Sat Apr 18, 2020 4:41 pm
Forum: Antweights
Topic: ESC with built-in receiver - interesting?
Replies: 65
Views: 22593

Re: ESC with built-in receiver - interesting?

Ok, I've assembled the latest prototype. It doesn't work. I don't know why. Making fine-pitch SMD without the right equipment is tricky (I have only basic stuff compared to the hackspace). This time I don't think there is a design fault, just cack-handed assembly. Render http://vectrex.org.uk/mark/m...
by MarkR
Thu Apr 02, 2020 9:39 am
Forum: RW101 Announcements
Topic: PLANNED OUTAGE - Weds 1st April 6pm onwards
Replies: 4
Views: 12618

Re: PLANNED OUTAGE - Weds 1st April 6pm onwards

Also, can you check the search facility, it seems to need reindexing or something, it's not finding things (Example: search "lipo connector" it does not find many messages about lipo connector)
by MarkR
Thu Apr 02, 2020 9:38 am
Forum: RW101 Announcements
Topic: PLANNED OUTAGE - Weds 1st April 6pm onwards
Replies: 4
Views: 12618

Re: PLANNED OUTAGE - Weds 1st April 6pm onwards

Good job, it's working really well.

One thing I can suggest, is can we have https enabled by default automatically (e.g. with a redirect?)

Seems very fast.

Thanks

Mark
by MarkR
Sun Mar 29, 2020 12:07 pm
Forum: Antweights
Topic: Team Astro Build Log (Cheese bots)
Replies: 22
Views: 5582

Re: Team Astro Build Log (Cheese bots)

Yes, that should work.
by MarkR
Sat Mar 28, 2020 8:53 pm
Forum: Antweights
Topic: Team Astro Build Log (Cheese bots)
Replies: 22
Views: 5582

Re: Team Astro Build Log (Cheese bots)

If the RX is fine with 10 volts, then the wiring is easy. Just make up two "Y" cables and wire the negative and positive to the rx negative and positive and the esc negative and positive. In receivers with traditional "servo plug" connectors, all the positive and negative pins ar...
by MarkR
Sat Mar 28, 2020 8:03 pm
Forum: Antweights
Topic: Team Astro Build Log (Cheese bots)
Replies: 22
Views: 5582

Re: Team Astro Build Log (Cheese bots)

"Opto" means the ESC has an opto-isolator inside (basically a LED+photodiode in the same package, the signal is transmitted optically), so the two wires coming from the RX are totally electrically isolated from the battery power coming in. This is useful, e.g. for fixed-wing aircraft which...