Two specimens of the same model of timer. Top: an as-yet-unused timer, opened up to show its innards. Bottom: my good-enough-for-now five-minute fix: soldering an SMD pieze buzzer to two of the leads on a transistor inductor. A few days ago, a dual-clock kitchen timer we’ve had for years stopped making much noise when its […]
Can you tell the difference between the contrast between the joins made with a type of SAC305 solder (top) and the K100LD solder (bottom), both from Kester? It occurred to me recently that I had no idea how much solder remained on the spool I’d been using, of the SAC305 alloy (Indium Corporation’s CW-807, a […]
My soldering is still, gradually, improving. All four of the LoRa transceivers above have had 2.0mm-pitch pin headers attached. Two of the transceivers above are slotted into female headers on pre-made adapter plates which I purchased from an online vendor. THe other two have been soldered permanently onto bare adapter plates to which I fitted […]
Can you spot the little faces in this discarded, mangled length of Dupont connector reel-end? Tonight, I’m helping my better half with a work-related project. Nearly a hundred and fifty 4-AA battery holders and the same number of mini speakers need to have breadboard-friendly connectors affixed to the ends of their leads and I have […]
All of the little odds and ends that I kept after disassembling a laser printer toner cartridge. S. and I have returned home after having possibly our finest Christmas Eve lunch yet (chicken biryani and a mango lassi for her; palak paneer, creamy red lentil dal, and beef curry with a banana lassi for me) […]
Handheld-magnifier view of the BMP280 barometric pressure sensor on my CCS811 sensor breakout board. A sensor breakout board which I recently purchased features a CCS811 sensor (designed to detect and quantify ambient indoor levels of VOCs) and, to supply the data needed to correct its readings, two additional sensors: a SI7021 (relative humidity and temperature) […]
Google Translate gives Spot as the meaning of 现货, but it actually means in stock merchandise. I was asking whether they could fill an order for a list of specific items and they were answering in the affirmative. Squeaking by on a good-enough level of communication with Taobao sellers via Google Translate and a text […]
Is the piece of headgear depicted in these stickers a wizard hat or a sleeping cap? With no way of knowing with any certainty, I’m nevertheless rooting for the former. These stickers featuring Doraemon wearing a star-studded sleeping cap or wizard hat called to me when I saw ’em on Taobao. Related: Does Doraemon really […]
Yes, the wording of this post is a hat tip to a meme: The Most Interesting Man in the World. I don’t always rack up 10k steps a day, but when I do… I remember that the ten-thousand-step goal is an arbitrary number and a relic of 1964 Tokyo Olympics hoopla.
For a cup or dish, a trip through the dishwasher probably represents an inanimate household object’s version of medieval trial by ordeal. A couple of years back, we bought a bunch of mugs and all but one have passed the dishwasher test with flying colors. The mug shown above, however, has been found wanting.
So you’ve installed a later and greater version of Python (Python 3.6.1 in my case) in /usr/local/bin and would like it to be used instead of your server’s default (and presumably older) python version when you type python at the shell prompt after logging in? The solution is widely documented. Add the following to the […]
I set out to get WSGI going, with Python 3.x, on my CentOS 7.3 VPS. Initially, I began by trying to follow the path laid out in a 2011 blog post (Building mod_wsgi with EasyApache for WHM/cPanel) but with current equivalents of Python and mod_wsgi. That’s a very lucidly written article and it’s apparent from […]