LanternD's Castle

A geolocation recorder aiming at enhanced lifespan.

I upgraded my power management module with a smaller form-factor.

I built a tiny power module for other small form-factor future circuit design.

I need to do this on every new machine. So I keep a note for my quick reference.

Install the latest version of vim on Raspberry Pi (4B in my case).

Include the texts in other files to generate a new files.

I encountered this error accidentally, and spent almost a night to find a solution (actually very simple).

My WhatPulse failed to pulse the key stats to the server. Just got it fixed.

What to do if the `pdflatex` command failed to run because of change of the Tex-master variable.

My mindmap-based summary of a NoSQL introduction article.

My own mindmap-based summary of another blog post introducing distributed system.

A short note about what I've done to set the Pi up.

A method to select the account for processing the mailto links if there are multiple accounts in the browser.

I had a problem that the module failed to find the SIM card. This seems to be a common problem for this chip.

I know the title is long. But I don't know how to describe my problem clearly. So just read the post. I'm sure generally you find this post by Google, so the title won't bother you.