Jiashun ZhengVisualization of the mutations of SARS-CoV-2 Omicron variantSARS-CoV-2 is constantly changing, with the new Omicron variant hitting hard. Scientists are working hard to understand the contagiousness…5 min read·Jan 1, 2022----
Jiashun ZhengPublication grade plot with PythonI am using Python (matplotlib) + Adobe Illustrator approach to make figures for publications. The idea is to use Python code to make the…3 min read·Dec 6, 2021----
Jiashun ZhengA mysterious drop of views of my stories for two months from Apr 2021 to July 2021This is just to report my obversion of a drop of views of my top two stories (1, 2)in the middle of 2021. Here are the stats:1 min read·Nov 18, 2021----
Jiashun ZhengHome monitoring with ESP32. Part III CO2 sensorI am curious about the indoor air quality, especially in the bedroom. When the ventilation flow is small, the CO2 level will increase…2 min read·Nov 8, 2021----
Jiashun ZhengSay no to dead WiFi blind spots with WiFi range extension with OpenWRTHere I am sharing my experience on extending the wifi signal with a spare OpenWRT enabled wireless router.2 min read·Mar 1, 2021----
Jiashun ZhengTunnel through multiple gateways through sshProblem: I run multiple instances of Jupyter notebooks for different projects. I need an easy way to access the Jupyter notebooks/labs…2 min read·Jan 19, 2021----
Jiashun ZhengDownsampling time-series data with Kapacitor and InfluxdbIf storage is not a problem and you don’t worry about the energy consumption for transferring the data you will want to perform the…4 min read·Dec 6, 2020----
Jiashun ZhengOpenWRT Parental control for online school in pandemicIt is better than no school at all, but the online school does have its problem. The most frequent complaint from my peer parents is about…3 min read·Nov 19, 2020----
Jiashun ZhengHackintosh Journey on a Lenovo Yoga 720This is a record of my effort to convert a Lenovo Yoga 720 15IKB into a hackintosh in hope to find some feedbacks if you happened to have…8 min read·Sep 22, 2020--1--1
Jiashun ZhengHome monitoring with ESP32. Part II — towards a more accurate temperatureMy system: ESP32 + LM35, MQTT +Influxdb + Grafana now allow me to log the temperature, with one problem: the readout is about 5–6 degrees…4 min read·Sep 5, 2020--1--1