Lup Yuen Lee 李立源 @lupyuen@qoto.org
- Pronouns/Gender/Sexuality
- He/Him/They, Bisexual/Asexual 🇸🇬
- Date of Birth
- 1969
- Articles
- https://lupyuen.org
IoT Techie and Educator / Apache NuttX PMC
Joined Jan 2020
Deleting data (NAND Flash) from Echo Dots—and other #IoT devices from Amazon and elsewhere—is hard
Benchmarking OpenCV on #STM32 MCUs
Lup Yuen Lee 李立源
boosted
@lupyuen be careful when removing alsomy sim has fell out of the adapter a few times when removing before, leaving the adapter in the slot. I've mostly been using my Pinephone unless I plan to be gone for a while. I'm now 100% Pinephone because I got tired of dealing with the sim falling out of the adapter before it was completely removed, so I super glued them together.
How we connect to a #WiFi Access Point in our #BL602 Firmware
https://lupyuen.github.io/articles/wifi?3#connect-to-wifi-network
Here's how we start the #WiFi Driver in our #BL602 Firmware
https://lupyuen.github.io/articles/wifi?2#bl602-wifi-demo-firmware
ESP32 Turned Handy SWD Flasher For nRF52 Chips
https://hackaday.com/2021/07/01/esp32-turned-handy-swd-flasher-for-nrf52-chips/
Flipper Zero: How it's Made and Tested
Folk wisdom on Visual Programming
https://drossbucket.com/2021/06/30/hacker-news-folk-wisdom-on-visual-programming/
Lup Yuen Lee 李立源
boosted
@lupyuen this is a brilliant move. Now the farmers will no longer be helping the rest of us push for this sort of thing.
#OpenSource alternative to Twilio
British right to repair law comes into force today, but excludes smartphones and computers
"What do you wish you knew at the beginning of your programming journey?"
"Do NOT insert MicroSIM adapter into #PinePhone without a SIM card"
Lup Yuen Lee 李立源
boosted
@BigSkyRider @lupyuen I've had a look at this for an upcoming publication on embedded data distribution. Delta compression looks feasible, as long as there isn't too heavy optimization in place (LTO and similar) -- but the network has to support full updates anyway (eg. for compiler updates), and then update diffusion can cut traffic to a fraction.
Lup Yuen Lee 李立源
boosted
Several fixes have been committed to the #OpenBSD iwm and iwx #wifi drivers. My goal is to have a stable base for upcoming changes.
If you have been seeing "iwm0: fatal firmware error" and such in the logs, upgrading to -current will hopefully fix this (with build date after June 30, 09:45h UTC).
And if you aren't seeing any issues then please try the next round of changes 
https://marc.info/?l=openbsd-tech&m=162505311319860&w=2
Quantitative Analysis of Decompiled #BL602 #WiFi Firmware is nearly complete! Actual lines of WiFi code to be reverse engineered: 10,500
Google Sheets: https://docs.google.com/spreadsheets/d/1C_XmkH-ZSXz9-V2HsYBv7K1KRx3RF3-zsoJRLh1GwxI/edit#gid=1323188614
- Pronouns/Gender/Sexuality
- He/Him/They, Bisexual/Asexual 🇸🇬
- Date of Birth
- 1969
- Articles
- https://lupyuen.org
IoT Techie and Educator / Apache NuttX PMC
Joined Jan 2020
