Ridiculously cool! Gordon from @Espruino got open source PebbleOS booting on a BangleJS watch (same chipset nRF52 as Core 2 Duo) www.youtube.com/watch?v=d_U5...
PebbleOS on Bangle.js Smartwatch demo
YouTube video by Espruino
www.youtube.com
March 25, 2025 at 5:53 PM
Ridiculously cool! Gordon from @Espruino got open source PebbleOS booting on a BangleJS watch (same chipset nRF52 as Core 2 Duo) www.youtube.com/watch?v=d_U5...
An @adafruit.com Feather nRF52 Bluefruit LE spotted in The Naked Gun
September 26, 2025 at 12:32 AM
An @adafruit.com Feather nRF52 Bluefruit LE spotted in The Naked Gun
Over the last two weeks of holiday, I:
* Added bridging support to my comms stack
* Wrote a wireless protocol on top of nrf52/esb
* Implemented USB to wireless bridging on an nrf52
* Wrote a bootloader for the nrf52 using my comms stack
* "deployed" the first device to control lights in my house
* Added bridging support to my comms stack
* Wrote a wireless protocol on top of nrf52/esb
* Implemented USB to wireless bridging on an nrf52
* Wrote a bootloader for the nrf52 using my comms stack
* "deployed" the first device to control lights in my house
January 3, 2025 at 2:19 AM
Over the last two weeks of holiday, I:
* Added bridging support to my comms stack
* Wrote a wireless protocol on top of nrf52/esb
* Implemented USB to wireless bridging on an nrf52
* Wrote a bootloader for the nrf52 using my comms stack
* "deployed" the first device to control lights in my house
* Added bridging support to my comms stack
* Wrote a wireless protocol on top of nrf52/esb
* Implemented USB to wireless bridging on an nrf52
* Wrote a bootloader for the nrf52 using my comms stack
* "deployed" the first device to control lights in my house
An nRF52 with its ultra low power deep sleep would last forever on a cell coin.
January 18, 2025 at 2:04 PM
An nRF52 with its ultra low power deep sleep would last forever on a cell coin.
Slap a XIAO nRF52 on it and done
February 1, 2025 at 4:04 AM
Slap a XIAO nRF52 on it and done
me spending 20 minutes trying to delicately solder a 3v3 power wire to my Tiny2040 debug probe...
nRF52... thanks, but imma run parasitically off UART TX
nRF52... thanks, but imma run parasitically off UART TX
December 14, 2024 at 6:58 PM
me spending 20 minutes trying to delicately solder a 3v3 power wire to my Tiny2040 debug probe...
nRF52... thanks, but imma run parasitically off UART TX
nRF52... thanks, but imma run parasitically off UART TX
also they're based and nRF52-pilled
June 11, 2026 at 6:27 PM
also they're based and nRF52-pilled
I spent the evening soldering pin headers onto modules. 🤓
I did several ESP32's (S3, C3, C6, H2), WCH RISC-V boards, an nRF52 (nice!nano clone), and I also assembled a single "smol Slime" (AKA a SlimeVR tracker)... though I couldn't find my stash of buttons/switches, so I improvised for testing. 😅
I did several ESP32's (S3, C3, C6, H2), WCH RISC-V boards, an nRF52 (nice!nano clone), and I also assembled a single "smol Slime" (AKA a SlimeVR tracker)... though I couldn't find my stash of buttons/switches, so I improvised for testing. 😅
October 19, 2025 at 5:35 AM
I spent the evening soldering pin headers onto modules. 🤓
I did several ESP32's (S3, C3, C6, H2), WCH RISC-V boards, an nRF52 (nice!nano clone), and I also assembled a single "smol Slime" (AKA a SlimeVR tracker)... though I couldn't find my stash of buttons/switches, so I improvised for testing. 😅
I did several ESP32's (S3, C3, C6, H2), WCH RISC-V boards, an nRF52 (nice!nano clone), and I also assembled a single "smol Slime" (AKA a SlimeVR tracker)... though I couldn't find my stash of buttons/switches, so I improvised for testing. 😅
#CircuitPython 9.2.5 released!
Including:
- displayio: tilepalettemapper, VT100 escape codes for scrolling and colors
- synthio and audiodelays additions
- audioio on Espressif
- spitarget on SAMx
- Initial work on Zephyr port
- Bug fixes
blog.adafruit.com/2025/03/18/c...
Including:
- displayio: tilepalettemapper, VT100 escape codes for scrolling and colors
- synthio and audiodelays additions
- audioio on Espressif
- spitarget on SAMx
- Initial work on Zephyr port
- Bug fixes
blog.adafruit.com/2025/03/18/c...
CircuitPython 9.2.5 Released!
From the GitHub release page: This is CircuitPython 9.2.5, the latest bugfix revision of CircuitPython, and is a new stable release. WARNING for nRF52 boards only: If your board has an nRF52 UF2 bo…
blog.adafruit.com
March 19, 2025 at 1:46 AM
#CircuitPython 9.2.5 released!
Including:
- displayio: tilepalettemapper, VT100 escape codes for scrolling and colors
- synthio and audiodelays additions
- audioio on Espressif
- spitarget on SAMx
- Initial work on Zephyr port
- Bug fixes
blog.adafruit.com/2025/03/18/c...
Including:
- displayio: tilepalettemapper, VT100 escape codes for scrolling and colors
- synthio and audiodelays additions
- audioio on Espressif
- spitarget on SAMx
- Initial work on Zephyr port
- Bug fixes
blog.adafruit.com/2025/03/18/c...
(if you want bluetooth, you probably want an nrf52 instead of an RP2xxx. If you want wifi instead, you probably want an nrf52 and/or an esp32c3)
July 30, 2025 at 5:24 PM
(if you want bluetooth, you probably want an nrf52 instead of an RP2xxx. If you want wifi instead, you probably want an nrf52 and/or an esp32c3)
Signed up for the rePebble waiting list, it'd be neat to get Embassy, Rust, and Trouble (as a BLE stack) support for @ericmigi.com's relaunch efforts :D.
They really did nail it, I think my brother is still using my OG kickstarter pebble these days. Esp with nRF52 as the MCU target!
repebble.com
They really did nail it, I think my brother is still using my OG kickstarter pebble these days. Esp with nRF52 as the MCU target!
repebble.com
We're bringing Pebble back!
Eight years later, you still can't beat a Pebble
repebble.com
February 7, 2025 at 7:23 PM
Signed up for the rePebble waiting list, it'd be neat to get Embassy, Rust, and Trouble (as a BLE stack) support for @ericmigi.com's relaunch efforts :D.
They really did nail it, I think my brother is still using my OG kickstarter pebble these days. Esp with nRF52 as the MCU target!
repebble.com
They really did nail it, I think my brother is still using my OG kickstarter pebble these days. Esp with nRF52 as the MCU target!
repebble.com
Man I fucking hate debugging OTA. I should not have waited until last minute, turns out working with this cursed UF2 bootloader that the nRF52 Pro Micro comes with is a pain to work with if you want to use a Zephyr application and not ancient nRF5
December 25, 2025 at 3:36 AM
Man I fucking hate debugging OTA. I should not have waited until last minute, turns out working with this cursed UF2 bootloader that the nRF52 Pro Micro comes with is a pain to work with if you want to use a Zephyr application and not ancient nRF5
Started updating the ESB crate for @nordicsemi.com's nRF52 devices so I can set up an ad-hoc wireless network at my house.
This code was last touched 4 years ago, and whew is it a relic from the early days of embedded Rust.
That said: I was able to get it updated today!
github.com/jamesmunns/e...
This code was last touched 4 years ago, and whew is it a relic from the early days of embedded Rust.
That said: I was able to get it updated today!
github.com/jamesmunns/e...
github.com
December 24, 2024 at 7:27 PM
Started updating the ESB crate for @nordicsemi.com's nRF52 devices so I can set up an ad-hoc wireless network at my house.
This code was last touched 4 years ago, and whew is it a relic from the early days of embedded Rust.
That said: I was able to get it updated today!
github.com/jamesmunns/e...
This code was last touched 4 years ago, and whew is it a relic from the early days of embedded Rust.
That said: I was able to get it updated today!
github.com/jamesmunns/e...
April 10, 2025 at 8:43 AM
#CircuitPython 9.2.6 released!
blog.adafruit.com/2025/03/22/c...
Highlights of this release
- Fix `storage.remount("/", readonly=False)` regression.
- Fix RP2xxx WiFi mDNS limitations.
blog.adafruit.com/2025/03/22/c...
Highlights of this release
- Fix `storage.remount("/", readonly=False)` regression.
- Fix RP2xxx WiFi mDNS limitations.
CircuitPython 9.2.6 Released!
From the GitHub release page: This is CircuitPython 9.2.6, the latest bugfix revision of CircuitPython, and is a new stable release. WARNING for nRF52 boards only: If your board has an nRF52 UF2 bo…
blog.adafruit.com
March 23, 2025 at 2:10 AM
#CircuitPython 9.2.6 released!
blog.adafruit.com/2025/03/22/c...
Highlights of this release
- Fix `storage.remount("/", readonly=False)` regression.
- Fix RP2xxx WiFi mDNS limitations.
blog.adafruit.com/2025/03/22/c...
Highlights of this release
- Fix `storage.remount("/", readonly=False)` regression.
- Fix RP2xxx WiFi mDNS limitations.
STM32 is also VERY popular, but there are SO MANY chips, so it's worth finding a popular one there. Check for how many examples are in the embassy-rs/embassy examples folder.
nRF52 is also very popular, but a bit less powerful/flexible than others, tho great for BLE and/or low power.
nRF52 is also very popular, but a bit less powerful/flexible than others, tho great for BLE and/or low power.
December 19, 2025 at 11:23 PM
STM32 is also VERY popular, but there are SO MANY chips, so it's worth finding a popular one there. Check for how many examples are in the embassy-rs/embassy examples folder.
nRF52 is also very popular, but a bit less powerful/flexible than others, tho great for BLE and/or low power.
nRF52 is also very popular, but a bit less powerful/flexible than others, tho great for BLE and/or low power.
NovelBits' Mohammad Afaneh has shared a new blog post: nRF54L Series: first impressions and comparison with the nRF52 Series
novelbits.io/nrf54l15-unb...
novelbits.io/nrf54l15-unb...
nRF54L Series: First Impressions and Comparison with the nRF52 Series
Sponsored by Nordic Semiconductor. Nordic Semiconductor has, once again, raised the bar in wireless technology by introducing the nRF54L series of System-on-Chips (SoCs). As an evolution of the popula...
novelbits.io
December 3, 2024 at 1:43 PM
NovelBits' Mohammad Afaneh has shared a new blog post: nRF54L Series: first impressions and comparison with the nRF52 Series
novelbits.io/nrf54l15-unb...
novelbits.io/nrf54l15-unb...
I would guess that nRF52 was used exactly because the new chips don't come with a standalone SDK and require you to use Zephyr. PebbleOS is based on FreeRTOS, and porting it to Zephyr would be quite a bit of work that they wanted to avoid.
March 25, 2025 at 6:58 PM
I would guess that nRF52 was used exactly because the new chips don't come with a standalone SDK and require you to use Zephyr. PebbleOS is based on FreeRTOS, and porting it to Zephyr would be quite a bit of work that they wanted to avoid.
#CircuitPython 9.2.3 released!
blog.adafruit.com/2025/01/17/c...
Highlights:
- Fix ESP32-S3 regression: did not connect properly to USB without an interposed hub.
- New boards: Adafruit Sparkle Motion and Mini Sparkle Motion, M5Stack StampS3.
blog.adafruit.com/2025/01/17/c...
Highlights:
- Fix ESP32-S3 regression: did not connect properly to USB without an interposed hub.
- New boards: Adafruit Sparkle Motion and Mini Sparkle Motion, M5Stack StampS3.
CircuitPython 9.2.3 Released!
From the GitHub release page: This is CircuitPython 9.2.3, the latest bugfix revision of CircuitPython, and is a new stable release. WARNING for nRF52 boards only: If your board has an nRF52 UF2 bo…
blog.adafruit.com
January 17, 2025 at 9:21 PM
#CircuitPython 9.2.3 released!
blog.adafruit.com/2025/01/17/c...
Highlights:
- Fix ESP32-S3 regression: did not connect properly to USB without an interposed hub.
- New boards: Adafruit Sparkle Motion and Mini Sparkle Motion, M5Stack StampS3.
blog.adafruit.com/2025/01/17/c...
Highlights:
- Fix ESP32-S3 regression: did not connect properly to USB without an interposed hub.
- New boards: Adafruit Sparkle Motion and Mini Sparkle Motion, M5Stack StampS3.
✨ Smart LED - Turn on LED when it becomes dark with Microbit and Rust
- LDR and Microbit v2
- Using Embassy and microbit-bsp
mb2.implrust.com/ldr/index.html
#rustlang #microbit #nrf52 #embassy
- LDR and Microbit v2
- Using Embassy and microbit-bsp
mb2.implrust.com/ldr/index.html
#rustlang #microbit #nrf52 #embassy
July 11, 2025 at 3:36 AM
✨ Smart LED - Turn on LED when it becomes dark with Microbit and Rust
- LDR and Microbit v2
- Using Embassy and microbit-bsp
mb2.implrust.com/ldr/index.html
#rustlang #microbit #nrf52 #embassy
- LDR and Microbit v2
- Using Embassy and microbit-bsp
mb2.implrust.com/ldr/index.html
#rustlang #microbit #nrf52 #embassy
#CircuitPython 9.2.1 released!
blog.adafruit.com/2024/11/20/c...
Highlights:
- Additional synthio and audiofilters functionality.
- I2CTarget and keys.*.reset() fixes.
- RP2350: PSRAM and cpu.temperature fixes.
- rp2pio: add background read operation.
- Five new boards.
blog.adafruit.com/2024/11/20/c...
Highlights:
- Additional synthio and audiofilters functionality.
- I2CTarget and keys.*.reset() fixes.
- RP2350: PSRAM and cpu.temperature fixes.
- rp2pio: add background read operation.
- Five new boards.
CircuitPython 9.2.1 Released!
From the GitHub release page: This is CircuitPython 9.2.1, the latest bugfix revision of CircuitPython, and is a new stable release. WARNING for nRF52 boards only: If your board has an nRF52 UF2 bo…
blog.adafruit.com
November 25, 2024 at 5:58 PM
#CircuitPython 9.2.1 released!
blog.adafruit.com/2024/11/20/c...
Highlights:
- Additional synthio and audiofilters functionality.
- I2CTarget and keys.*.reset() fixes.
- RP2350: PSRAM and cpu.temperature fixes.
- rp2pio: add background read operation.
- Five new boards.
blog.adafruit.com/2024/11/20/c...
Highlights:
- Additional synthio and audiofilters functionality.
- I2CTarget and keys.*.reset() fixes.
- RP2350: PSRAM and cpu.temperature fixes.
- rp2pio: add background read operation.
- Five new boards.
Learn to exploit vulnerabilities like the STM32 RDP2 & RDP1 glitches used to recover keys from crypto-wallets💰, the nRF52 APPROTECT glitch used to hack IoT devices 📡, and much more!
Join @stacksmashing.bsky.social at #hw_ioUSA2025
👉 hardwear.io/usa-2025/tra...
#faultinjection #firmware
Join @stacksmashing.bsky.social at #hw_ioUSA2025
👉 hardwear.io/usa-2025/tra...
#faultinjection #firmware
December 13, 2024 at 12:31 AM
Learn to exploit vulnerabilities like the STM32 RDP2 & RDP1 glitches used to recover keys from crypto-wallets💰, the nRF52 APPROTECT glitch used to hack IoT devices 📡, and much more!
Join @stacksmashing.bsky.social at #hw_ioUSA2025
👉 hardwear.io/usa-2025/tra...
#faultinjection #firmware
Join @stacksmashing.bsky.social at #hw_ioUSA2025
👉 hardwear.io/usa-2025/tra...
#faultinjection #firmware