Lup Yuen Lee 李立源 @lupyuen@qoto.org

Taiwan’s #Gigabyte Technology faces boycott in China after mocking ‘low-quality’ manufacturing on mainland

https://www.scmp.com/tech/tech-trends/article/3133171/taiwans-gigabyte-technology-faces-boycott-china-after-mocking-low

Flipping the #BL602 LED on and off in a Web Browser ... With #Blockly and #uLisp!

https://lupyuen.github.io/articles/lisp?12#run-the-blockly-web-editor

@AmpBenzScientist #OpenSource #IoT is particularly challenging because we need someone who understands...

(1) Microcontroller (BL602)
(2) Network Transceiver (RFM90 / SX1262)
(3) RF, Power Amplifier, Antenna (plus SDR for debugging)
(4) Network Drivers (SX1262, LoRaWAN)
(5) RTOS (FreeRTOS)
(6) Network Gateway (ChirpStack / LoRaWAN)
(7) Network Cloud (The Things Network)

And do this all for free! ;-)

That's why I had to take a short break with Lisp and get the LoRa stuff out of my system for a while...

@AmpBenzScientist Aha! Remember "Much of the #OpenSource world is critically underfunded yet critically important"?

It's tough to get exactly what we want in open source ... Because people like me aren't being paid to do this 😉

@AmpBenzScientist Hmmm our RFM90 module doesn't expose the VDD_IN from SX1262...

https://github.com/lupyuen/bl_iot_sdk/releases/download/v9.0.0/RFM90.pdf

Maybe we put this on hold? I need to take this up with Pine64 before they start selling it 🙂

What is #Blockly? How do we create drag-n-drop Scratch programs for #BL602?

https://lupyuen.github.io/articles/lisp?10#now-add-blockly

#BL602 #uLisp will let us define Functions and Loops at the Command Line ... Just like "bash"!

https://lupyuen.github.io/articles/lisp?9#blinky-function

@AmpBenzScientist Hmmm I'm a bit too distracted right now ... Gotta write up about Lisp on BL602 ... Then test the Pine64 LoRa Gateway.

I guess SX1262 works for now, even though it seems suboptimal

Integrating #RustLang Into the #Android Open Source Project

https://security.googleblog.com/2021/05/integrating-rust-into-android-open.html?m=1

@AmpBenzScientist My country is too small ... We won't dare to offend any other country sigh

How we flip the LED on #BL602 with #uLisp

https://lupyuen.github.io/articles/lisp?8#flip-the-led

@AmpBenzScientist Erm because "censorship" 😉

How we enter Lisp Commands into the #BL602 #uLisp Firmware ... And why it looks like Sumikko Gurashi 角落生物 😂

https://lupyuen.github.io/articles/lisp?7#run-the-bl602-ulisp-firmware

@AmpBenzScientist haha it's the same in Singapore. We don't even allow Satellite Dishes 😉

Great to see a growing community for #BL602 + #LoRa 👍

https://www.reddit.com/r/PINE64official/comments/n9q9y9/pinecone_bl602_talks_lorawan/?utm_medium=android_app&utm_source=share

How we build and flash the #uLisp Firmware for #BL602

https://lupyuen.github.io/articles/lisp?5#build-the-bl602-ulisp-firmware

@AmpBenzScientist Interesting... so we think BL602 might not have sufficient power for the LoRa Module?

Here's what I observed...

(1) BL602 + SX1276 seems to be emitting the right power (see the red chirp)...

https://lupyuen.github.io/articles/lora#visualise-lora-with-software-defined-radio

(2) But BL602 + SX1262 seems to be emitting much less power (the faint chirp)...

https://lupyuen.github.io/articles/lorawan#troubleshoot-lorawan

If it's a power problem, why is SX1262 affected but not SX1276 🤔

Was it hard to port #uLisp to #BL602? Not at all!

https://lupyuen.github.io/articles/lisp?4#start-with-ulisp

Why port #uLisp to #BL602?

https://lupyuen.github.io/articles/lisp?3#start-with-ulisp