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💬 Mini Dimmer Box

openhardware.io 31 Mar 2018, 11:19 last edited by openhardware.io 31 Mar 2018, 11:31

https://www.openhardware.io/view/566/Mini-Dimmer-Box
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mysensors 189 atsha204a 28 ota 16 dimmer 15 power supply 14 acdc 11 rgb 8 acs712 4
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Koresh Contest Winner 31 Mar 2018, 11:24 last edited by
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mysensors 189 atsha204a 28 ota 16 dimmer 15 power supply 14 acdc 11 rgb 8 acs712 4

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I do not was time for this but want to try.
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@lis610 I have found with a 499K resistor the range is reduced to about 1.2m in a ABS box. With a 1Mohm it was about 3m, I do not have many high value SMD resistors to experiment with but the lower the value the lower the range. Just tried with a 333K and it operates about 0.8m in free air.
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@shabba Hi, unfortunately I don't have time and patience for doing BOM's on all of my projects but in this case it's not very hard as the external component count is greatly reduced by using the NRF51822 RF SOC which is a PTR5518 module from Aliexpress. Other than that there is the Microchip touch sense controller - MTCH105 and the usual smd resistors(0603) and caps. Other than that you're not forced to use and solder the onboard dc-dc converter so you don't have to worry about those components - you just need to solder the 3V_EN jumper to use the Livolo 3V output coming from the main relays/power supply board.
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Hello, i'm making some progress; received the components this week. Unfortunately it doesn't work... yet For now i have SanityCheck failure in to logs. I'm afraid my soldering of all these little components is not good. I tested with a multimeter the 4 pins and i have continuity on one of them but maybe not the others so i guess i will have to try remelting all these small regulators ???
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@tlustoch The node is a very simple one. So I never considered boot loaders, as the node would not need changing sketches during it's lifetime. I have boot loading functionality on my other designs, this one is a minimal board. Any extra chip would beat the purpose of the word "minimal". It's a dumb node for a reason
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@epierre You can use a Peltier element to power this board. Like this one: http://www.ebay.com/itm/TEC1-12706-12V-60W-Heatsink-Thermoelectric-Cooler-Cooling-Peltier-Plate-Module-/121349774916?hash=item1c41029e44:g:mukAAOSwDNdVrg-U
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Awesome project, I wish I made something like this. (I actually wanted to make something like this when I was in school) Very clean and nice presentation and realization, with a lot of attention to details. All is very realistic, I can imagine that it took quite some time making it. Thanks for sharing the details!

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