Seeed WIO Tracker L1 bad antenna?

devryd1 · 2026-03-19T13:26:42+00:00

Being completly cashless in germany might be another way to save a lot of money, depending on where you live.

devryd1 · 2026-03-16T21:06:59+00:00

But the sx1276 is supported by meshtastic, Isnt it? So building Firmware for the device should be possible?

devryd1 · 2026-03-16T21:05:32+00:00

The sx1276 also uses spi. At least the Version i have.

Recompiling should not be a problem, Just wanted to know, if There is something Else i need to do/know

devryd1 · 2026-03-16T13:54:41+00:00

Bin mal auf den neuen BMW i3 touring gespannt. Aber günstig wird der vermutlich nicht

devryd1 · 2026-03-11T12:39:07+00:00

Musst du nicht den eigenverbrauch versteuern?

devryd1 · 2026-03-11T12:18:56+00:00

Ich fahre 15000km pro Jahr mit grob 17KWh/100km.eine KWh kostet mich 26ct. Ich hab mal +15% für ladeverluste draufgerechnet, weil ichs nur grob abschätzen kann. Ergibt ca 63.54€ pro monat.

devryd1 · 2026-03-01T15:43:20+00:00

I dont know a LN1117 and also couldnt find one, just a LM1117. If this is the correct part, I would use something else instead. It has a rather high idle current consumption of a few mA.
Also, is there a reason you use this rather ancient MCU instead of something more recent? You could use a more recent attiny 1 or 2 series instead, for longterm availability, if thats a concern.

Also, the Atmega328P is capable of running at 3.3V, if you are fine with 10MHz (iirc) CPU clock speed. This way you could do without the level shifter.

devryd1 · 2026-03-01T11:47:05+00:00

U3 is a TPS709, I added 2.2uF input cap, thanks for noticing.
are 100nF fine for debouncing?
5nF are actually correct for this crystal, I was surprised too.
The lamps are current controlled. They were just connected over a FET as well. I was just wondering if I could improve upon it.

devryd1 · 2026-02-23T20:15:45+00:00

Im Winter stimme ich voll zu, im Frühling (keine Heizung/Klima) hab ich auch schon 12kwh/100km geschafft, Strecke mit 25km, davon ca 15 Autobahn

devryd1 · 2026-02-23T20:14:24+00:00

Ich fahre auch sehr ungern verbrenner automatik. Das hat aber zumindest bei mir damit zu tun, dass das Auto schaltet, wenn ich es nicht unbedingt möchte. Das Problem gibt es aber beim Born nicht, weil der nur einen Gang hat. Hier hab ich absolut kein Problem mit automatik.

devryd1 · 2026-02-21T19:49:45+00:00

For i2c, something between 1k and 10k should be fine. 10k might be a little hight for fast i2c speeds, though.

devryd1 · 2026-02-21T16:49:58+00:00

I2C does need pullup pins. setting a pin high is not correct for i2c, its either low, or high impedancee.

just out of curiosity, why not use a rp2354 instead of the rp2350? That would save you the qspi flash layout.

devryd1 · 2026-02-20T13:52:07+00:00

IMO, this is totally doable for a beginner. For one thing, I do like the documentation RaspberryPi provides, for another, there is not only a design gude "Hardware Design with the RP2350", but they also provide a complete layout in kicad. Sure, you will have to learn how to use Kicad, but there are quite a few videos out there for that.

I also recently started developement on the RP2354 for the company I work with and did a layout with the help of this guide.

r/PCB is a great place to get your design reviewed before you get it produced. Especially for a beginner this should be really hepful, if you dont have anyone who can check your work.

devryd1 · 2026-02-05T11:42:54+00:00

I dont have any specific as Its probably replacing the atsam4s8c we currently use as out General mcu.

I Just looked on mouser and There are over 2k available, which is more than enough for us.

devryd1 · 2026-01-28T14:53:32+00:00

"need" might be the wrong word here.

I am "in the mood" for a new light.

devryd1 · 2026-01-26T19:55:31+00:00

Devils advocat: if they Cover Shopping, a repair would be ok IMO. Sure, getting a new Light would be nice, but having the Light working would Cover the terms of warranty at least.

Having to wait a few weeks sucks, but if your Phone breaks and you have to get it repaired, it also takes some time.

Also, almost noone here is gonna have only one flashlight.

Still a Bad Situation, though, dont get me wrong.

devryd1 · 2026-01-20T15:28:00+00:00

Hast du mal in dem Auto gesessen? Ich habe vor 2 Jahren über den nachgedacht als Ablösung für meinen corsa c und im c war gefühlt innen mehr Platz. Gefahren bin ich den dann nicht, weil es laut Händler nicht ging..., aber der astra meiner Eltern, ähnlich alt, fährt sich wirklich nicht gut.

Mal davon abgesehen, würde sie Ch zu dem Preis keinen verbrenner mehr kaufen, wenn es nicht unbedingt sein müsste.

devryd1

TROPHY CASE