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Tisham Dhar
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166 followers
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PyconAU 2018 - Keep Notes
This is a raw dump of notes I took on keep while attending PyconAU. Each to be fully expanded to an article on its own. Suitably redacted to keep my intrusive thoughts to myself. Documentation and Technical Writing Persuasive, Referential, Literary, Express...
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Preserving pins, auto-transmit RS485 with Lora32_Wifi
This is a story of the always helpful NE555 (in this case its 3.3v cousin the TLC555). I have been designing more and more complex DIN rail energy monitors. The last one is 3-unit DIN rail oeuvre with the following features: Lora, Wifi and Bluetooth thanks ...
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Sense Energy monitor teardown - sampling in MHz
Recently I obtained a Sense Energy monitor via US from Margaret of BitKnitting . She is doing a very interesting neighbourhood energy efficiency project. As usual I could not contain my curiosity and opened it up to have a look. I will start off with an ana...
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Simulating 3-phase AC for Energy Monitor testing
Finding 3-phase is difficult, convincing the owner of the said supply to test some home made hardware is even more so. After building a 3-phase energy monitor my testing options for it appeared very limited. So I set about making my own low-cost 3-phase ene...
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PyconAu 2017 - Melbourne
I recently attended my first PyconAu - a cauldron of programming goodness. It was held in cloudy and grey Melbourne at the convention center. The exact same venue I attended the Nvidia conference a while ago. It was three days of information flow and meetin...
PyconAu 2017 - Melbourne
PyconAu 2017 - Melbourne
whatnicklife.blogspot.com
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3G Energy Monitor - WattWatchers teardown
Tear-downs are always done in a spirit on learning and admiration. Having built some hobby electronics I really appreciate what goes into laying out a mixed signal PCB as well as one that has high and low-voltages on the same board and is subject to regulat...
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ATM90E36 Dev-kit for 3-phase AC Metering
ATM90E3X Devkit PCB 5x5 After successfully building the single-phase energy monitor with the ATM90E26 there has been lots of interest in the 3-phase version. Being an open-hardware project, many people have created remixed and derived versions as well. Afte...
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Pulsecounting and Deepsleep based IoT water meter
I admit to being a tiny bit obsessed with monitoring utility bills and gathering data on my usage patterns blow-by-blow. The energy monitoring has reduced my electricity bills, so I wanted to have a go at the water usage. Granted a lot of the water bill is ...
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Pulsecounting and Deepsleep based IoT water meter
I admit to being a tiny bit obsessed with monitoring utility bills and gathering data on my usage patterns blow-by-blow. The energy monitoring has reduced my electricity bills, so I wanted to have a go at the water usage. Granted a lot of the water bill is ...
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