A montage of projects on various topics
Introduction The purpose of this note is to share my findings regarding incorrect pin definitions found in Figure 3-4 of “LM108_SLAMTEC_rplidarkit_usermanual_A1M8_v2.2_en.pdf”. The same incorrect pin definitions are also found in earlier versions of this...
IEEE recently published a detailed 49 page study that demonstrates how staggering the challenge is for this transition that policy makers have created. Below are some straightforward calculations that quantify the scale of what...
Introduction In order to work with the map database at openstreetmap.org the website has extensive information and one can find very many software packages available for developers of different kinds of uses for maps....
Introduction A recent post described the prototype, its software, and results of testing to determine how/if this weather station can be battery operated. That testing clearly demonstrated that two AAA cells in series will...
Introduction This post describes a work-in-progress project wherein the title question had to be answered first. The goal is to make a simple device that can be taken anywhere and does not need a...
Introduction Honeywell HPMA115SO-XXX and the Plantower PMS1003/5003 particulate matter sensors are nearly identical products. The underlying principal of operation is laser light scattering and its analysis. An internal fan sucks air into a chamber...
Some maps of Pleasanton are shown here for historic purposes. Searching online this author did not easily find any old maps, that is, maps going back at least 40 or 50 years. Meanwhile Pleasanton...
Introduction This post is a continuation of the issue of jet noise at Livermore Airport that has been described elsewhere in this Blog. While the airport experiences noise complaints for both jet and non-jet...
This post shows maps of actual departure tracks of jet traffic leaving LVK.
Introduction Hardware Programming >>>>>>Main Program >>>>>>Communication With Sensor Via UART Conclusion Introduction I recently came across this interesting CO2 sensor that uses photoacoustic spectroscopy and is not too expensive. The evaluation board that I...
