Lup Yuen Lee 李立源 @lupyuen@qoto.org

Yamaha DX7 chip reverse-engineering: Control Registers

http://www.righto.com/2022/02/yamaha-dx7-chip-reverse-engineering_7.html?m=1

#Intel Creates $1B Innovation Fund To Grow #RISCV Market

https://www.forbes.com/sites/karlfreund/2022/02/07/intel-creates-1b-innovation-fund-to-grow-risc-v-market-and-attract-new-foundry-customers/

Peter Thiel to step down from board of Facebook parent Meta

https://www.cnbc.com/2022/02/07/peter-thiel-to-step-down-from-facebook-board.html

#NuttX OS shows Sensor Data received from IKEA Air Quality Sensor ... With PM 2.5 encoded inside!

https://github.com/lupyuen/ikea-air-quality-sensor#test-with-apache-nuttx-os

#NuttX OS dumps the Sensor Data from IKEA Air Quality Sensor ... Yep looks correct! 🎉

https://github.com/lupyuen/ikea-air-quality-sensor#test-with-apache-nuttx-os

#NuttX OS has a GPS Demo App that reads from UART ... Let's tweak it to dump the UART Data from IKEA Air Quality Sensor

https://github.com/lupyuen/incubator-nuttx-apps/blob/master/examples/gps/gps_main.c

Apache #NuttX OS shows the UART Data from IKEA Air Quality Sensor! Let's dump the data in hex

https://github.com/lupyuen/ikea-air-quality-sensor#test-with-apache-nuttx-os

Testing IKEA Air Quality Sensor gets messy ... 2 USB Ports needed! 🙄

https://github.com/lupyuen/ikea-air-quality-sensor#connect-to-pinedio-stack-bl604

"One American Hacker Suddenly Took Down North Korea’s Internet"

https://www.forbes.com/sites/daveywinder/2022/02/05/one-american-hacker-suddenly-takes-down-north-koreas-internet-all-of-it/?sh=3d7193be6698

DrawnApart: A remote #GPU fingerprinting technique

https://blog.amiunique.org/an-explicative-article-on-drawnapart-a-gpu-fingerprinting-technique/

How Hall Effect Sensors work

https://www.explainthatstuff.com/hall-effect-sensors.html

"2 kissing men videobomb CNA journalist live reporting Beijing Winter Olympics"

https://mothership.sg/2022/02/kissing-men-beijing-olympics/

Configure Apache #NuttX OS to enable UART1 for 9600 bps ... So NuttX can talk to IKEA Air Quality Sensor

https://github.com/lupyuen/ikea-air-quality-sensor#configure-apache-nuttx-os

"Meta threatens to shut down Facebook and Instagram in Europe"

https://mashable.com/article/meta-threatens-european-facebook-instagram-shutdown

Now we connect IKEA Air Quality Sensor to #PineDio Stack #BL604 @PINE64 ... So we can transmit PM 2.5 readings over LoRaWAN to The Things Network!

https://github.com/lupyuen/ikea-air-quality-sensor#connect-to-pinedio-stack-bl604

Here's how we decode the UART Output from IKEA Air Quality Sensor ... Based on the PM1006 LED Particle Sensor Datasheet

https://github.com/lupyuen/ikea-air-quality-sensor#decode-sensor-data

Here's the datasheet for PM1006 LED Particle Sensor inside the IKEA Air Quality Sensor ... Let's use this to decode the UART data

https://github.com/arendst/Tasmota/files/7083662/PM1006_LED_PARTICLE_SENSOR_MODULE_SPECIFICATIONS.pdf

IKEA Air Quality Sensor sends something on its UART Port ... Let's capture the binary data with Bus Pirate

https://github.com/lupyuen/ikea-air-quality-sensor#test-with-bus-pirate