Hacking Hardware Picofly - a HWFLY switch modchip

mviper28 · Mar 4, 2024

psycho-neon said:
Great! I've ordered them as well. 100pcs (panelized 5x4) since I have plenty of rp2040 chip with me. Expecting them to come after 2days.

Thickness of the board I have set was 0.6mm (same as the prototype)

This was the initial version of the board, with my V2 switch. All works good and clean installs. both oled and v2 works perfectly.
View attachment 423752

can you help to place an order ? this first time doing this
is this setting is ok?
will it come with preinstalled components or i have to do something in order
about the connector i can connect the ribbon cable and the other board came with rp2040 tiny to install firmware and update right?

psycho-neon · Mar 4, 2024

mviper28 said:
can you help to place an order ? this first time doing this
is this setting is ok?
will it come with preinstalled components or i have to do something in order
about the connector i can connect the ribbon cable and the other board came with rp2040 tiny to install firmware and update right?

If you wanna buy more, you can ask JLCPCB to panelize it for you. Max of 5x4 (90mm x 100mm) this will be cheaper since you will only have to pay for the board of 5pcs of size 100mm x 100mm which is 2usd.

The rest of the settings are okay. 0.6mm or 0.8mm thickness, ENIG finish if you like (gold pads for longevity, a must for production level)

For assembly, you can turn on the option for PCB Assembly, Top Layer. But you will have to pay for the components. For 100pcs chips, they will yield about 1.8usd to 2.3usd each board with components depending on the finishes.

And yes, you can use the rp2040 tiny usb ribbon cable for programming since it is referenced to the OG rp2040 tiny of waveshare

DesDeux · Mar 4, 2024

Is it good dat0 adapter? Also, can someone send link to @abal1000x alternative cpu points for lite and oled?

psycho-neon · Mar 4, 2024

DesDeux said:
Is it good dat0 adapter? Also, can someone send link to @abal1000x alternative cpu points for lite and oled?

The contact point seems to be bad. Its rectangular in shape and can easily short the nearby connections.

For alternative cpu points its in the definitive guide for picofly 6.4version

DesDeux · Mar 4, 2024

Maybe it can be cut to the needed shape? And for oled I've used to solder to other points, different from one's in the guide(they were just silver blobs on pcb, roughly speaking). Maybe someone got link to post with those?

psycho-neon · Mar 4, 2024

DesDeux said:
Maybe it can be cut to the needed shape? And for oled I've used to solder to other points, different from one's in the guide(they were just silver blobs on pcb, roughly speaking). Maybe someone got link to post with those?

Yep it can be cut into shape. Try to cut it into triangular shape.

Quezacotl · Mar 4, 2024

Another success story!
Picofly, kamikaze and a fet. I forgot to take a pic of the Picofly though(RP2040-Zero). Picofly has what i always use, 100/100/68R resistors. Almost instant boot.
No pic with soldermask, but it's there just like in Sthetix kamikaze video.

This is the second kamikaze i made. The first one was also successful with the drilling part, but i have some problem of temp and voltage not showing on Hekate, hence not booting to HOS. If i cannot find the cause, maybe i'll just make it an emulator machine, since maybe it can boot into Lakka.

superxoi · Mar 4, 2024

psycho-neon said:
Tinyfly v2.0 - the layout is based on the well known rp2040-tiny from waveshare but made for switch.

1. All necessary pads are exposed and the LED DIN as well.
2. Resistors and capacitors are 0402 size for easier soldering
3. Default D0,CMD,CLK resistors are 100,100,47ohm respectively

I've attached here the gerber file and bom/pick and place files.

Updates:
Tinyfly v2.0.zip - Initial Release
Tinyfly v2.0b.zip - Added extra pads for GND and 3V3 line on the right side. Swapped CPU and RST at the bottom part. Some components are changed to basic parts if planning to fabricate using JLCPCB.

View attachment 423220 View attachment 423222 View attachment 423221

wow. i'm off this topic for awhile and you have completed it. amazing job.

dgm_mixtoon · Mar 4, 2024

What type of Dremel do you recommend?

psycho-neon · Mar 4, 2024

dgm_mixtoon said:
What type of Dremel do you recommend?

I tried both E-108 and MaAnt D1/D2, both of them works good, but I prefer MaAnt as the vibration is lesser than the E-108. For kamikaze, you should be using a 0.2mm tip.

dgm_mixtoon · Mar 4, 2024

psycho-neon said:
I tried both E-108 and MaAnt D1/D2, both of them works good, but I prefer MaAnt as the vibration is lesser than the E-108. For kamikaze, you should be using a 0.2mm tip.

Thank you so much for your answer

Quezacotl · Mar 4, 2024

I'm using 2UUL DL81 i got from Aliexpress. Very low vibration and it's light.

P.S. Yay! Another kamikaze done successfully just a 5min ago.

Endracion · Mar 4, 2024

psycho-neon said:
Great! I've ordered them as well. 100pcs (panelized 5x4) since I have plenty of rp2040 chip with me. Expecting them to come after 2days.

Thickness of the board I have set was 0.6mm (same as the prototype)

This was the initial version of the board, with my V2 switch. All works good and clean installs. both oled and v2 works perfectly.
View attachment 423752

Looks great honestly, well done! How many did you need to order? and what did the per unit cost end up being?

psycho-neon · Mar 4, 2024

Endracion said:
Looks great honestly, well done! How many did you need to order? and what did the per unit cost end up being?

Im only ordering pcb as i have some of the components that I can install myself. 100pcs (panelized) as stated.

But if you are planning to order it will cost about 1.8usd to 2.5usd each board depending on the quantity and board finishes.

deeps · Mar 4, 2024

Endracion said:
Looks great honestly, well done! How many did you need to order? and what did the per unit cost end up being?

I ordered 30, total cost including everything was 4 euro each

thesjaakspoiler · Mar 4, 2024

but i have some problem of temp and voltage not showing on Hekate, hence not booting to HOS

That sounds like an unrelated issue.
Maybe some other component was knocked off the board or the MAX17050 chip is broken.

superxoi · Mar 5, 2024

psycho-neon said:
Great! I've ordered them as well. 100pcs (panelized 5x4) since I have plenty of rp2040 chip with me. Expecting them to come after 2days.

Thickness of the board I have set was 0.6mm (same as the prototype)

This was the initial version of the board, with my V2 switch. All works good and clean installs. both oled and v2 works perfectly.
View attachment 423752

this part (w25q16jvuxiq) is the most pricey on the list beside the rp2040 itself.

psycho-neon · Mar 5, 2024

superxoi said:
this part (w25q16jvuxiq) is the most pricey on the list beside the rp2040 itself.

Sure i will add alternatives, there are other cheaper nor flash in the market which will work like the zeta brand. I chose the w25q16 because the OG rp2040 tiny is using it.

You can use the TR one yes.

superxoi · Mar 5, 2024

psycho-neon said:
Sure i will add alternatives, there are other cheaper nor flash in the market which will work like the zeta brand. I chose the w25q16 because the OG rp2040 tiny is using it.

You can use the TR one yes.

do you assembly it your self or let jlcpcb do it. i intent to do it myself but jlcpcb have some parts with good price (some not). i'm trying to mitigate the cost as less as possible but the parts i have now will cost about 145$ for 100 completed units.

Post automatically merged: Mar 5, 2024

psycho-neon said:
Sure i will add alternatives, there are other cheaper nor flash in the market which will work like the zeta brand. I chose the w25q16 because the OG rp2040 tiny is using it.

You can use the TR one yes.

the only one i concern about now is the led one because i don't know if it is the right one can you tell me if this is the right one. thank in advance

psycho-neon · Mar 5, 2024

@superxoi

I assemble them myself, fortunately I do have all of the components at home good for 50+ batch.

The led size is okay, 0807 but make sure it is ws2812b rgb. Double check the datasheet

Hacking Hardware Picofly - a HWFLY switch modchip

Member

Attachments

Well-Known Member

Member

Attachments

Well-Known Member

Member

Well-Known Member

Well-Known Member

Attachments

Well-Known Member

Member

Well-Known Member

Member

Well-Known Member

Well-Known Member

Well-Known Member

Well-Known Member

Well-Known Member

Well-Known Member

Well-Known Member

Well-Known Member

Attachments

Well-Known Member

Similar threads

Popular threads in this forum