Blue2monster
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blue2monster.bsky.social
Blue2monster
@blue2monster.bsky.social
110 followers 230 following 140 posts
Nerd, Electronics, PCBs, eINK, ePAPER, ESP32, KiCad, Arduino, SolarHarvesting
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Reposted by Blue2monster
Wir waren heute beim #VDE zur #Einspruchsberatung zur #IEC Norm bzw. Neuen DIN VDE 0100-751:2025-0, bei der es auf internationaler Ebene darum geht was man mit einem normalen Stecker an das Hausnetz anschließen darf.
Christian Ofenheusle vom Bundesverband #Steckersolar fasst die Ergebnisse zusammen.
Wenigstens standest du nicht im Bild... Wie br24
Works perfect with esphome
Reposted by Blue2monster
0.645 x 0.645 mm is the size of this LDO!

It's half the size of the 0402.

Low Quiescent Current is here 340 nA

The Dropout Voltage of 140 mV and 300 mA output current isn't so important. An ultra-low current switching regulator would work too, but this LDO has a significantly lower PCB footprint.
Reposted by Blue2monster
Have you ever used the autocomplete hotkey in KiCAD's PCB editor? Did you even know about it?
Reposted by Blue2monster
IMPORTANT AND DEEPLY EMBARRASSING CORRECTION: MAY 23rd and 24th!!!!!!!!!!
The 2026 Open Hardware Summit is coming.... to Berlin, Germany! On May 22nd and 23rd!! Still so much news to come here but we wanted to be sure you knew! For now you can enjoy the beautiful logo designed by @[email protected] and check out the site at 2026.oshwa.org

(livestream heard it first🤭)
wenn ich das gewusst hätte... war heute schon in Pforzheim
This Device really got me thinking: WHY 2x ESP32?
The interesting part about it is: It is the same as Waveshare www.waveshare.com/product/ardu...

de.aliexpress.com/item/1005009...
Got one for 23 €
Finally:ESP32 for BT sink and another ESP32-S3 for Display. Both ESP32 on one USB Connector
Design of a PCB for a simple FM Radio takes longer than expected. More and more ideas come up. Dual FM Tuner. I2S Audio, Synth VCO, BME690 Air Quality and #LoRa or #Meshtastic support. Did I mention ESP32-C3? Or Seeed Xiao Bord support?
please never use the AMS1117 again. It is sooo power inefficent. Please replace with RT9013 or something else. 10mA Quiescent current for the AMS is just not acceptable.
do share the KiCad Files somewhere?
WE are there already. Check Flux.ai
Reposted by Blue2monster
AISLER @aisler.net · Jul 7
Just in time! E-Traxx, a formula student team we recently partnered with, faced a last-minute PCB issue before their race. We reviewed and adjusted their design on a phone call, and with our 2 Layer Blitz service, we delivered the boards in just 3 days. Ready for the event! 🚀
Nice. What ist ITS function?
go for seeed ESP32-S3 module. smaller and better documented.
switch to esp32 wroom... easier to solder.. and save some space for mounting holes
Reposted by Blue2monster
When the client asks if you can 'just make the PCB smaller'… after routing is done.
Did the 1.8" ever got produced?
So what.... Gender neutral toilets are installed.