#nrf52840 — Public Fediverse posts

neues Review: #LilyGo T-Echo Card #Meshtastic #Tracker

--> https://cool-web.de/nrf/lilygo-t-echo-card-solar-lora-meshtastic-review.htm

#Techo #nRF #Nordic #nRF52840 #Elektronik #Maker #DIY #Mikrocontroller #Funknetzwerk #SX1262 #LR1110 #LoRa #Funk #Jedermannfunk #Review #Bewertung

I am slowly getting better at soldering, 4 out of 7 successful #MechanicalKeyboard PCBs now - all three of my diode-free #GraphTheory wired keyboard PCB designs have worked (eventually) ⌨️🎊

1️⃣ #RaspberryPiPico #RP2040 ‘Gamma Omega TC36K’ (USB only) http://astrobeano.blogspot.com/2025/08/my-first-self-built-computer-keyboard.html

2️⃣ #ProMicro #nRF52840 BLE ‘Gamma Omega Hesse’ https://astrobeano.blogspot.com/2025/10/hesse-diode-free-bluetooth-keyboard.html

3️⃣ #SeeedStudio #Xiao #SplitKeyboard BLE split Forager ‘Acid’ http://astrobeano.blogspot.com/2025/10/partial-heawood-forager-keyboard.html

#ErgoMechKeyboard #ErgonomicKeyboard

My current success rate with #MechanicalKeyboard PCB soldering is currently only 2 out of 5, well 40% is a pass mark - just.

The #RaspberryPiPico #RP2040 ‘Gamma Omega TC36K’ board worked (an easy build, could probably have socketed it). 💚

One success, one failure with #SeeedStudio #Xiao BLE castellated in Forager ‘Acid’ PCB (some fiddly back pads). 🧡

Two failures with #ProMicro #nRF52840 BLE in ‘Gamma Omega Hesse’ board attempting faux-castellation💔

Just as well custom PCBs are fabricated in batches of five - waiting on spare parts to try again - #LearningByDoing or #LearningByFailing ?

If my first wireless Bluetooth #MechanicalKeyboard proves a little battery hungry - and the #ZMK Discord channel suggests the #nRF52840 #ProMicro controller I plan on using can be - there’s an easy fix: Buy a bigger battery! 🪫

In hindsight I was over cautious when I ordered the 300mAh LP602030 battery BEFORE finalising the design, and eked out a few more millimetres for it 😢

Design is here: https://github.com/unspecworks/gamma-omega/tree/main/hesse

#Stromverbrauch und #DeepSleep des #nRF52840 #ProMicro/#SuperMini Board (nice!nano kompatibel) vs. ESP32 und andere

--> https://cool-web.de/nrf/nrf52840-stromverbrauch-deepsleep-promicro-supermini-nicenano-board-platformio.htm

https://www.youtube.com/watch?v=CHgmXYLKigI

https://www.youtube.com/watch?v=xd1tplxSs20

#nRF #Nordic #Schaltung #Elektronik #Maker #DIY #Mikrocontroller #Anleitung #Tutorial #DevBoard #PlatformIO #Arduino #Programmierung #AliExpress #Stromverbrauch #Messung #Vergleich #ESP32 #Arduino #Raspberry #Pi #Pico

Vorstellung des RF52840 ProMicro Board (nice!nano kompatibel)

--> https://cool-web.de/nrf/nrf52840-promicro-nicenano-board-platformio-vorstellung.htm

#nRF #Nordic #nRF52840 #Schaltung #Elektronik #Maker #DIY #Mikrocontroller #Anleitung #Tutorial #ProMicro #NiceNano #DevBoard #PlatformIO #Arduino #Programmierung #AliExpress