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Sump pump water level monitor: ultrasonic sensor HC-SR04, wifi module ESP8266, and Gmail sender

A few months ago, my sump pump float switch failed. It was second time since we moved in this house a few years ago. There are a few different types of float switches in the store and mine was one

Posted in Electronics

Binary golf shot counter

I have never liked to either play or watch any sports. A few years ago, there was a golf outing at work when I have ever tried golf for the first time. Golfing became one of my favorite things to

Posted in Electronics, Gadgets

Updated conky.conf

I have updated my conky as shown below. The conky.conf looks like this. — vim: ts=4 sw=4 noet ai cindent syntax=lua –[[ Conky, a system monitor, based on torsmo Any original torsmo code is licensed under the BSD license All

Posted in Electronics

2014 in review

The stats helper monkeys prepared a 2014 annual report for this blog. Here’s an excerpt: The concert hall at the Sydney Opera House holds 2,700 people. This blog was viewed about 13,000 times in 2014. If it were a

Posted in Electronics

my Conky configuration on Linux Mint

conky.conf in /etc/conky use_xft yes xftfont 123:size=8 xftalpha 0.1 update_interval 1 total_run_times 0 own_window yes own_window_type normal own_window_transparent yes own_window_hints undecorated,below,sticky,skip_taskbar,skip_pager own_window_colour 000000 own_window_argb_visual yes own_window_argb_value 0 double_buffer yes draw_shades no draw_outline no draw_borders no draw_graph_borders no default_color white default_shade_color

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Posted in Electronics

GPS distance measurement between two coordinates using Arduino

I knew the dimension of the LCD (Nokia 5110) as 43mm x 43mm but it looked smaller than I thought.  That’s good because I want to put it on top of the GPS (Holux M-1000). In my previous post, I

Posted in Arduino, Electronics, Gadgets, JeonLab mini, Modification

GPS (M-1000) with LCD (Nokia 5110)

Finally, I got the Nokia 5110 LCD that was ordered on eBay a few weeks ago. It took me a couple of days to find the best library for the LCD and quickly updated my Arduino program to display current

Posted in Arduino, Electronics, Gadgets, JeonLab mini
December 2017
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