Lup Yuen Lee 李立源 @lupyuen@qoto.org
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- He/Him/They, Bisexual/Asexual 🇸🇬
- Date of Birth
- 1969
- Articles
- https://lupyuen.org
IoT Techie and Educator / Apache NuttX PMC
Joined Jan 2020
World’s biggest factory to suck Carbon from the sky turns on in Iceland
"STM32 HAL: Is it safe to cast away const?"
US senators want Tencent-backed IoT firm Tuya sanctioned
Lup Yuen Lee 李立源
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Lup Yuen Lee 李立源
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@lupyuen @fishfulpenguin
Of course, disabling mobile data means OSM Scout Server is necessary. The phone takes more than 10-15 minutes for the first GPS fix; if the screen goes dark it will lose track and the fix will have to be found after waking up the screen again...
The phone heats up a lot, and the battery drains faster than an old Hummer its gas tank! I tried using a battery pack but energy drain was still massive.
So while it may technically "work", it isn't yet practical.
Lup Yuen Lee 李立源
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@lupyuen
It's a fair review. It appears the author has recently joined Mastodon. @fishfulpenguin
Hoping Aaron reads my reply. 😀
Regarding navigation,
* Pure Maps is available as flatpak, may be packaged in Arch (it is on pmOS), fits a mobile screen well
* OSM Scout Server for offline maps in Pure Maps
* I had the same issue with GPS fix hundreds of kilometers off; I work around it by disabling mobile data. Then the GPS fix is correct, though not very precise.
Robotic cane with 3D camera can accurately guide user to chosen location, avoiding obstacles
Coding #RustLang ... In French!
"Has the Theranos scandal changed Silicon Valley?"
Lup Yuen Lee 李立源
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#RISCV Andes Technology (Taiwan) to Be Listed on Luxembourg Stock Exchange
SDR Spectrum Analyser shows this beautiful #LoRa Chirp transmitted by #PineDio Stack SX1262 ... Looks OK but why are there "Fireflies"? 🤔
https://lupyuen.github.io/articles/lora#visualise-lora-with-software-defined-radio
Our ChirpStack #LoRaWAN Gateway shows the Data Packet received from #PineDio Stack ... Yep packet contents are correct!
https://lupyuen.github.io/articles/lorawan#view-received-lorawan-packets
Our #LoRaWAN Gateway (ChirpStack) accepts the Join Network Request from #PineDio Stack ... And receives the Data Packet yay! 🎉
https://lupyuen.github.io/articles/lorawan#view-received-lorawan-packets
Boot our #BL604 #LoRaWAN Firmware and enter these commands to: 1️⃣ Join the LoRaWAN Network 2️⃣ Transmit a LoRaWAN Data Packet
https://github.com/lupyuen/bl_iot_sdk/tree/pinedio/customer_app/pinedio_lorawan#lorawan-commands
Need to swap MISO and MOSI Pins due to a #BL604 SPI quirk ... Also note the quirky SPI Polarity-Phase
- 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
