Hacking Hardware McFly - an RP2040 board compatible with Picofly

[floxcap]

Seeing as this seems to have died off - I've decided to create my own version.
As soon as I am able to post links I'll make the repo public and share it.

EDIT: Here's the repo...
https://github.com/floxcap/fly2040

 

[oresterosso]

Seeing as this seems to have died off - I've decided to create my own version.
As soon as I am able to post links I'll make the repo public and share it.
View attachment 372885View attachment 372886View attachment 372887

@Saliciae he had started his project with great enthusiasm, also making the first test prototypes, then everything stopped.
I wonder how come?
I wish you success

 

[floxcap]

@Saliciae he had started his project with great enthusiasm, also making the first test prototypes, then everything stopped.
I wonder how come?
I wish you success

Yeah - I wonder too.
I've just submitted the first version for a small production run - with assembly for 10 boards it works out at $8 a board including express shipping. Would be even cheaper for a large run.

Obviously untested - so will need to test - but will share as soon as I can regardless.

Post automatically merged: May 21, 2023

Ok. Hopefully able to post links now - so here it is...
The project is in KiCad 7 and also includes the bom/cpl/gerber files ready for assembly with JLCPCB.

https://github.com/floxcap/fly2040

NOTE: This is totally untested & will need a code change (for the RGB led) to be fully functional.

 

[Adran_Marit]

huh.... so this is interesting....

 

[floxcap]

huh.... so this is interesting....

Ha - yep - that was one of the references for mine. Though rebuilt from the "ground-up" in KiCad - personally not a fan of EasyEDA.

 

[MossDragoon]

You guys are tripping. You realize people have real life to deal with, right?

Come on now. Let them cook.

 

[linuxares]

off topic but seems https://twitter.com/notzecoxao/ got nuked

EDIT:

 

[ypeeLs]

off topic but seems https://twitter.com/notzecoxao/ got nuked

EDIT:

Was that twitter legit? I placed an order with the files he posted but I've been too afraid to use them

 

[lightninjay]

Was that twitter legit? I placed an order with the files he posted but I've been too afraid to use them

Do ittttt, let us know your results.

 

[ypeeLs]

Do ittttt, let us know your results.

still waiting on the BOM, tracking hasn't updated in days

 

[oresterosso]

Was that twitter legit? I placed an order with the files he posted but I've been too afraid to use them

now it will be fun to assemble them

 

[Kinokoda]

Gotta love it when Gmail doesn't show me notifications from here, ended up getting a new display with the money I saved up for this. Fuck. Time to get a job after school is done I guess.

 

[Adran_Marit]

Was that twitter legit? I placed an order with the files he posted but I've been too afraid to use them

If they are the files I'm thinking of then check if they match what's on ansems github I linked a few posts back

 

[floxcap]

While waiting for my first batch of assembled boards to arrive... I decided to see how small I could make it. The latest version is double sided - so assembly is a bit more tricky (bit more expensive at a fab)... but the result is amazing.
I'll be getting a few of these assembled too for "research"

 

[oresterosso]

While waiting for my first batch of assembled boards to arrive... I decided to see how small I could make it. The latest version is double sided - so assembly is a bit more tricky (bit more expensive at a fab)... but the result is amazing.
I'll be getting a few of these assembled too for "research"

View attachment 374294

in the end what is the total cost for an assembled board?
if there are some boards left, can I book myself to test it?
obviously not for free, if necessary I pay the right fee for the boards + shipping.

 

[floxcap]

in the end what is the total cost for an assembled board?
if there are some boards left, can I book myself to test it?
obviously not for free, if necessary I pay the right fee for the boards + shipping.

In small quantities - it's expensive. JLC charge about $100 for their "engineering fees - whether it's for 5 boards or 500.
The BOM (cost of chips etc) works out to less than $3USD/board.

So... the plan is to do a small run and test them - share the results... then if there's interest - perhaps do a larger run (That'd probably work out pretty close to $4/$5 a board)

That being said - all the files are there on git and anyone is free to do as they want with them

 

[ypeeLs]

BOM finally arrived.. now to find a sacrificial Switch

 

[floxcap]

So my first (small) batch of fly2040 boards have arrived - initial testing - runs the firmware as expected and the led indication is as expected - next step is to install it and see how it performs.

The min board is pretty small - quite a bit smaller than the zero!

 

[Adran_Marit]

So my first (small) batch of fly2040 boards have arrived - initial testing - runs the firmware as expected and the led indication is as expected - next step is to install it and see how it performs.

The min board is pretty small - quite a bit smaller than the zero!

View attachment 377269

got a tiny to compare it to?

 

[floxcap]

got a tiny to compare it to?

Unfortunately I don't have a tiny - so I can only go by the reference measurements - for reference here's the fly2040-min measurements next to the tiny's... (mine's smaller )

Also - I've just installed one (fly2040-min) and I can happily confirm it works perfectly.
The nice thing is that it also already has the 3 x 47 Ohm resistors, the boot button (which is also so small it doesn't have to be removed) and an optional mosfet pulldown resistor (10K). Just solder the jumper to use the pulldown.