is long short long short long short a DAT0 problem? im messuring 0.6v in diode mode.
installed a picofly clone chip into an oled. it blinks 1x blue then 3x long short yellow. im messerung 0.6v in diode mode.
One of the reasons why I haven't done my custom board was the cost. In this case you are pretty much paying for the RP2040 Tiny but with inferior quality since components are assembled by hand instead of tray machines.I ordered 30, total cost including everything was 4 euro each
One of the reasons why I haven't done my custom board was the cost. In this case you are pretty much paying for the RP2040 Tiny but with inferior quality since components are assembled by hand instead of tray machines.
Its good that someone want to make it for themselves but makes no economical sense.
But you're paying the same as pre-assembled RP2040-Tiny.You're wrong as usual. Assembly by JLCPCB is included in the price and they're using tray machines.
But you're paying the same as pre-assembled RP2040-Tiny.
And no way they will specialize an assembly line for this many units.
If there's something special other than shuffling pad location and resistors I can see how this is useful.The idea is to have the right resistors from the start, and to have the solder pads in more optimal locations.
Could you stop making assumptions about things you have no idea about, please?
It's fun though. I have ordered all the parts from taobao. Including the board from jlcpcb 100 completed units will cost me 140$. Nearly the cost of rp2040 zero on taobao. But i'm happy with it. The sole reason is fun if you ask me.If there's something special other than shuffling pad location and resistors I can see how this is useful.
But comparing the quality of custom boards to a production board while paying the same seems off to me but whatever floats your boat my man.
Like I said, if you're doing this for yourself as a fun project just ignore what I said but quality will remain a concern compared to a production unit.It's fun though. I have ordered all the parts from taobao. Including the board from jlcpcb 100 completed units will cost me 140$. Nearly the cost of rp2040 zero on taobao. But i'm happy with it. The sole reason is fun if you ask me.
Those 'production' board which you are talking about are made in the same factories.Like I said, if you're doing this for yourself as a fun project just ignore what I said but quality will remain a concern compared to a production unit.
Then there is maybe something wrong with the solder or your equipment.I keep either bridging the two caps or I get it so hot that I remove the cap by accident.
And only difference between those and own design is that boards are qa/qc'ed. So any faulty once are already discarded.Those 'production' board which you are talking about are made in the same factories.
Companies like SeeedStudio that make these RP2040 board also order them from companies like PCBWay.
So quality is just the same.
Waveshare RP2040-Tiny cost $4 or even less when you order bulk with guarantee of quality.And only difference between those and own design is that boards are qa/qc'ed. So any faulty once are already discarded.
For my boards I made, so far non of them are faulty. Im happy with them.
Well guaranteed quality is always subjective. You may seen big companies shipping faulty devices at times.Waveshare RP2040-Tiny cost $4 or even less when you order bulk with guarantee of quality.
I would rather be assured than waste my money.
If you really want to make something that is worth the trade off you should do something different. For instance, add mosfets on board, HOWEVER, this will only work on the back. Where and how to position the board and mosfets is where the magic happens.
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.
Wow that's impressive. I can't do it even WITH a microscopefirst-time kamikaze method without a microscope
Looks amazing! Love the purple pcbWell guaranteed quality is always subjective. You may seen big companies shipping faulty devices at times.
Mine costs about 1.8usd max all in all, and it is designed based on how I work with switches. So no question about it. I may get 1 out of 100 faulty and that is fine for me.
I've tried the one with mosfet board design since the total cost of board + shipping was 3usd only, however it doesn't work perfectly due to many factors. I wish it works but unfortunately the mosfet should be as close as possible to the points. I wish it work and I already have a lot of ideas how to position the fets. But anyhow it is what it is, if only we can find a way.
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I received the pcbs and assembled. this is my custom one with 0201 components. Now I have 99pcs more to assemble.
Prototype 1 vs Final product. Love them both.
View attachment 424170
Oh! I didn't expect purple looks that good. I'm glad i ordered these two colorous. Do you use hotair gun or hot plate to assembly?Well guaranteed quality is always subjective. You may seen big companies shipping faulty devices at times.
Mine costs about 1.8usd max all in all, and it is designed based on how I work with switches. So no question about it. I may get 1 out of 100 faulty and that is fine for me.
I've tried the one with mosfet board design since the total cost of board + shipping was 3usd only, however it doesn't work perfectly due to many factors. I wish it works but unfortunately the mosfet should be as close as possible to the points. I wish it work and I already have a lot of ideas how to position the fets. But anyhow it is what it is, if only we can find a way.
Post automatically merged:
I received the pcbs and assembled. this is my custom one with 0201 components. Now I have 99pcs more to assemble.
Prototype 1 vs Final product. Love them both.
View attachment 424170
Oh! I didn't expect purple looks that good. I'm glad i ordered these two colorous. Do you use hotair gun or hot plate to assembly?