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(Energy Matters): OpenTRV prototype 20130220 V0p09 PICAXE 18M2 microcontroller DS18B20 temperature sensor DS1306 RTC RFM22B radio LDR USB powered on stripboard back closeup 17 DHD.jpg
D= [Feb 23, 2013]; S=5MB, 4000x3000; T=JPEG image [MIME:image/jpeg].

Key: D= file date of exhibit; S= size in bytes, XxY pixels, etc; T= type of exhibit; L= location/time or viewpoint of exhibit (if known).

  • opentrv = TRV, smart thermostatic radiator valve, heat zoning, soft heat zoning, wireless TRV, home automation = The OpenTRV Open-Source Thermostatic Radiator Valve project.

  • back = back/reverse/obverse/rear/heads of an object such as a ticket or coin
  • closeup = close-up/macro; tightly framed and imaged at a relatively large scale


Preview Index

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OpenTRV ~ closeup 1 DHD.jpg
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OpenTRV ~ closeup 2 DHD.jpg
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OpenTRV ~ closeup 3 DHD.jpg
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OpenTRV ~ closeup 5 DHD.jpg
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OpenTRV ~ closeup 6 DHD.jpg
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OpenTRV ~ front closeup 11 DHD.jpg
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OpenTRV ~ front closeup 12 DHD.jpg
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OpenTRV ~ front closeup 13 DHD.jpg
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OpenTRV ~ front closeup 14 DHD.jpg
  • OpenTRV ~ back closeup 15 DHD.jpgOpenTRV ~ back closeup 15 DHD.jpg
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OpenTRV ~ back closeup 16 DHD.jpg
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OpenTRV ~ back closeup 17 DHD.jpg
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OpenTRV ~ back closeup 18 DHD.jpg

About This Category

Energy, efficiency, conservation, renewables and related topics.

Some Similar Exhibits

ThumbnailExhibit Name
[5MB]OpenTRV prototype 20130220 V0p09 PICAXE 18M2 microcontroller DS18B20 temperature sensor DS1306 RTC RFM22B radio LDR USB powered on stripboard front closeup 11 DHD.jpg (Energy Matters)

  • opentrv = TRV, smart thermostatic radiator valve, heat zoning, soft heat zoning, wireless TRV, home automation

Some connections that had been omitted were instated before these photos, including the ugly one on the back. For the circuit diagram and PICAXE BASIC program that it ran, see: https://sourceforge.net/p/opentrv/code-0/494/tree/trunk/PICAXE/DHD201302L0/hardware/snapshots/20130223-r493/

[57kB]OpenTRV prototype 20130220 V0p09 PICAXE 18M2 microcontroller DS18B20 temperature sensor DS1306 RTC RFM22B radio LDR USB powered on schematic circuit diagram r429 1 DHD.pdf (Energy Matters)

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