Lup Yuen Lee 李立源 @lupyuen@qoto.org

Connect BME280 to #RISCV PineCone #BL602 @PINE64 ... Preferably not on a cooking pot 😂

https://github.com/lupyuen/bme280-nuttx#connect-bme280

Verify with Bus Pirate that our BME280 works OK ... Despite my horrid soldering 😂

https://github.com/lupyuen/bme280-nuttx#test-with-bus-pirate

Will Apache #NuttX OS talk I2C with Bosch BME280 Sensor? (Temperature + Humidity + Air Pressure) ... Let's find out!

https://github.com/lupyuen/bme280-nuttx

Soldering my second PineCone #BL602 @PINE64 ... With plenty of sticky tape protection 🙏

https://lupyuen.github.io/articles/pinecone

Sparkly Singapore 🤔 (Radar Interference Tracker)

https://ollielballinger.users.earthengine.app/view/bellingcat-radar-interference-tracker

IKEA Air Quality Sensor connected to #PineDio Stack BL604 @PINE64 ... Now with a Voltage Divider 👍

https://lupyuen.github.io/articles/ikea?90#connect-to-pinedio-stack-bl604

Pandan Cake, Pineapple Tarts on Oatmeal 🤔

Looks clearer on the Kitchen Sink 😂

https://lupyuen.github.io/articles/ikea?89#notes

Yep it still works after connecting the Voltage Divider 👍

https://lupyuen.github.io/articles/ikea?89#notes

Voltage Divider for 5V UART Port on IKEA Air Quality Sensor ... This looks safer for our 3.3V board 🤔

https://lupyuen.github.io/articles/ikea?88#notes

What's Next for IKEA Air Quality Sensor on Apache #NuttX OS ... LoRaWAN, The Things Network, Prometheus and Grafana!

https://lupyuen.github.io/articles/ikea?17#whats-next

Bus Pirate sniffing the UART output from IKEA Air Quality Sensor

https://lupyuen.github.io/articles/ikea?16#appendix-test-with-bus-pirate

Our #NuttX App shows the PM 2.5 data from IKEA Air Quality Sensor! 🎉

https://lupyuen.github.io/articles/ikea?15#run-nuttx-app

How we build, flash and run Apache #NuttX OS on #BL602 and #ESP32

https://lupyuen.github.io/articles/ikea?12#appendix-build-flash-and-run-nuttx

Extracting the PM 2.5 values from IKEA Air Quality Sensor

https://lupyuen.github.io/articles/ikea?11#process-sensor-data

IKEA Air Quality Sensor transmits PM 2.5 data in frames of 20 bytes ... Here's how we validate the data

https://lupyuen.github.io/articles/ikea?10#validate-sensor-data

How our #NuttX App handles the PM 2.5 data from IKEA Air Quality Sensor

https://lupyuen.github.io/articles/ikea?9#main-loop

Interesting fix for #BL602 Flashing Problem ... Disable the XZ Decompression 🤔

https://lupyuen.github.io/articles/flash?88#notes

Here's how I soldered the UART Port on IKEA Air Quality Sensor

https://lupyuen.github.io/articles/ikea?8#appendix-solder-uart-port-on-ikea-vindriktning-air-quality-sensor

Some folks are using the 5V UART Port on IKEA Air Quality Sensor ... Without a Voltage Divider 🤔

https://lupyuen.github.io/articles/ikea?7#notes