Lup Yuen Lee 李立源 @lupyuen@qoto.org

Decrypting Data Infected with Hive Ransomware (without encryption key)

https://arxiv.org/abs/2202.08477

#NuttX BMP280 Driver says it's 29 °C with air pressure 1,006 millibars ... Yep looks right for Sunny Singapore by the Seaside 👍

https://github.com/lupyuen/bme280-nuttx#run-sensor-test-app

#Linux on Mobile Weekly Update

https://linmob.net/weekly-update-7-2022/

We enable the #NuttX Sensor Test App ... To test the BMP280 Driver

https://github.com/lupyuen/bme280-nuttx#run-sensor-test-app

#NuttX BMP280 Driver appears as "/dev/sensor/baro0" ... Let's read the device

https://github.com/lupyuen/bme280-nuttx#bmp280-driver-loads-ok

#NuttX BMP280 Driver loads OK on #BL602 ... After setting the Register ID as I2C Sub Address! 🎉

https://github.com/lupyuen/bme280-nuttx#bmp280-driver-loads-ok

"Is it normal to not understand 90% of a Microcontroller's Datasheet?" (#Embedded)

https://www.reddit.com/r/embedded/comments/svot8c/is_it_normal_to_not_understand_90_of_a/?utm_medium=android_app&utm_source=share

Here's how we patch the #NuttX BMP280 Driver to send the Register ID as I2C Sub Address (instead of I2C Data)

https://github.com/lupyuen/bme280-nuttx#set-i2c-sub-address

#BL602 #NuttX I2C Driver expects us to provide the I2C Sub Address ... Let's patch the BMP280 Driver to pass the Register ID as I2C Sub Address

https://github.com/lupyuen/bme280-nuttx#set-i2c-sub-address

#BL602 has a peculiar I2C Port ... We need to send the I2C Sub Address (Register ID) separately from the I2C Data ... This might cause the BMP280 Driver to fail

https://github.com/lupyuen/bme280-nuttx#set-i2c-sub-address

#BL602 #NuttX I2C Driver doesn't log the data transferred ... Let's log ourselves

https://github.com/lupyuen/bme280-nuttx#log-i2c-transfers

Here's how we connected our Logic Analyser to PineCone #BL602 ... For testing the #NuttX BMP280 Driver

https://github.com/lupyuen/bme280-nuttx/blob/main/README.md#invalid-register-id

Logic Analyser shows that #BL602 sent the wrong Register ID to BME280 ... Let's fix this 🤔

https://github.com/lupyuen/bme280-nuttx#invalid-register-id

#NuttX BMP280 Driver fails because the detected Device ID is 0 ... Let's find out why 🤔

https://github.com/lupyuen/bme280-nuttx#invalid-device-id

Here's how we register the BMP280 Driver at #NuttX Startup

https://github.com/lupyuen/bme280-nuttx#register-bmp280-driver

We patch the I2C Address and Device ID in the #NuttX BMP280 Driver ... So it will work with BME280

https://github.com/lupyuen/bme280-nuttx#change-i2c-address-and-device-id

"Why Is There So Much Fishing in Video Games?"

https://www.vice.com/en/article/88g5m4/why-does-every-video-game-have-fishing

Silicon Witchery S1 module combines nRF52840 Bluetooth SoC with Lattice iCE40 #FPGA

https://www.cnx-software.com/2022/02/18/silicon-witchery-s1-module-combines-nrf52840-bluetooth-soc-with-lattice-ice40-fpga/

Apache #NuttX OS doesn't have a BME280 Driver ... Let's test the BMP280 Driver instead (Air Pressure only)

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

"SmartWater is made up of a combination of rare elements that would never be found naturally anywhere else in the world"

https://www.bbc.com/news/technology-60414452