Energy, ESP8266, Power Monitoring
Testing Current Transformers
by Chester Lowrey • • 0 Comments
V1 120.55 V1 avg 120.51 CT1 A 3.72 CT1 VA 448.61 CT1 W 357.18 avg 343.68 CT2 A 3.68 CT2 VA 443.41 CT2 W 354.12 avg 343.20 CT3 A 3.60 CT3 VA 434.26 CT3 W 347.32 avg 343.10 CT4 A 3.59 CT4 VA 432.64 CT4 W 345.86 avg 339.43 CT5 A 3.61 CT5 VA 434.80…
Computers, Entertainment
The Art Of PrtScn
by Chester Lowrey • • 0 Comments
The Art Of PrtScn
VPS, Webdev
Installing Lets Encrypt SSL cert through Virtualmin
by Chester Lowrey • • 0 Comments
This guide seemed to work well and the cert is live on sciencefactoryhawaii.com – will see in 2 months if the auto renew works properly. https://www.100tb.com/blog/using-lets-encrypt-with-virtualmin/
Computers, Laser Cutter, Tools
LaserCAD does not bind to correct network interface
by Chester Lowrey • • 0 Comments
LaserCAD using the network interface is a great way to communicate with your laser cutter. Unfortunately the program seems to choose the wrong interface card on my desktop and there appears to be no way to change this besides disabling all other network adapters and running the program again. https://r1ch.net/projects/forcebindip Download the Zip file install…
Electronics, Laser Cutter, Tools
Laser cutter stepper motor driver upgrade
by Chester Lowrey • • 0 Comments
It was definitely time to clean up the wiring inside this laser cutter.. Something that was lashed together as quickly as possible and now has some wiring issue somewhere, best replaced with newer tech. Original double sided hand taped and etched PCBs made in 2004 for my CNC mill project – partly still working 2016
Electronics, ESP8266
ESP8266 Battery Voltage Monitor Simple
by Chester Lowrey • • 6 Comments
Real time graph – Warning may appear to freeze your browser as it downloads data points from Thingspeak – assuming the system is still running – started 2016-9-1 😉 This is a small 110AH 12V lead acid battery charged by about 200W solar panels – the spikes in charging are from clouds going by +…
Uncategorized
ESPEasy Access Point
by Chester Lowrey • • 0 Comments
ESPEasy does not properly go back to captive portal once bonded to another Access Point. you must create an AP with the same parameters as before.. at least this is my finding.
KiCad
KiCad Libraries
by Chester Lowrey • • 0 Comments
https://github.com/metacollin/kicad-gigalib Integrating FreeRouter with KiCad Newer branch of freerouter
Uncategorized
My First Atomic Clock – Rubidium Frequency Standard
by Chester Lowrey • • 0 Comments
http://en.wikipedia.org/wiki/Rubidium_standard “A rubidium standard or rubidium atomic clock is a frequency standard in which a specified hyperfine transition of electrons inrubidium-87 atoms is used to control the output frequency. It is the most inexpensive, compact, and widely used type of atomic clock, used to control the frequency of television stations, cell phone base stations, in…
ESP8266, Thingspeak
Thingspeak Graphs – Beta
by Chester Lowrey • • 0 Comments
POE
DIY gigabit POE network switch – Works with Ubiquiti 24V passive gigabit POE devices
by Chester Lowrey • • 6 Comments
I had the idea of modifying a TP-Link 8-Port Gigabit Ethernet Desktop Switch (TL-SG1008D) to be a 24V gigabit POE switch. I recently started using Ubiquiti’s gigabit WiFi gear and needed some devices to run directly off a 12V DC battery, so I could not use the provided 120V POE power injectors.  (12V to 24V provided by…
Energy, Power Monitoring
Remote Power Monitoring system AC or DC current measurements
by Chester Lowrey • • 0 Comments
Cloud IOT Hosting / Storage Options Looked at in initial exploration of subject: Example: http://www.openhomeautomation.net/cloud-temperature-logger-esp8266/ Github for above project: http://github.com/openhomeautomation/esp8266-cloud http://dweet.io/ http://www.freeboard.io/ http://bsautner.github.io/com.nimbits/ – Desinged to be installed on local hardware like raspberry pi – is being maintained but does not seem to be highly used http://platformio.org/ https://temboo.com ESP EASY Firmware – The firmware option I am using…
Hydroelectric
Air Vacuum Relief Valve for Micro Hydro Electric Systems
by Chester Lowrey • • 0 Comments
Quite often in a micro hydro system you may have a section of pipe that is not at a perfect downhill grade or even goes uphill – this can lead to air getting trapped in these sections and greatly restricting water flow. One way to deal with this problem that the irrigation industry has come…
Projects
Arduino Heatpump Controller
by Chester Lowrey • • 0 Comments
Some links to get the ideas started.. https://github.com/ToniA/arduino-heatpumpir https://www.openhardware.io/view/41/Heatpump-airconditioner-controller My heatpump: Klimaire KSIF009-H115-S 9,000 BTU 15.2 SEER Ductless Mini-Split Inverter Air Conditioner Heat Pump System with 15′. Installation Kit (115V), , 9,000 BTU – 115 V