Eric many thanks for you reply. I replied to John Rehwinkel so you can see why it took a while to respond. Your design sounds exciting and another addition to my collection when you are finished : ) Regards John
On 10 May 2014 13:18, Tidak Ada <offl...@zeelandnet.nl> wrote: > There are several makes of the SHT21 one is fitted on a small SMD print, > but > an other on has an elongated print with header pins. Further there is a > Arduni compatable and an I²C compatable type. > I am busy to re-develop the original design to extend it with a real time > clock as a reference for shut off the nixies at night a nightly scan of the > nixies to avoid cthode poisoning, a PIR sensor to activate the hv when a > person enters the room or unit at darkness. Fianlly I use the more charming > IN17 instead of the IN14's that have became scarse and expensive. The high > voltage will be derived from the more efficiënt and smaller Taylor supply. > The sensor comes outside the case to get a more reliable read-out (no > warming up by the components inside) or in a 'tunnel' with mechanic > ventilation. > > eric > > -----Original Message----- > From: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] On > Behalf Of John Rehwinkel > Sent: zaterdag 10 mei 2014 13:57 > To: neonixie-l@googlegroups.com > Subject: Re: [neonixie-l] Nixie thermometer in Elektor journal > > > sorry for opening an old post (2012?) but I couldn't see any others and > didn't think it with opening a new thread. > > I'm not the smartest hobby electronics person but I do enjoy tinkering > > : ) I have been building one of these to add to my small (so far) > collection of nixie clocks etc. > > > > I have the main pcb finished and need to mount the sensor to it's pcb. > > Because it is smd I want to use the 'heated skillet and solder paste' > method but I am not sure which way to orientate the chip to the board. > > This is the one with the SHT21 sensor on the little daughter board? The NC > pins are pins 3 and 4, and the unconnected pads are the ones toward the > through-hole pins. To put it another way, the notch (cut > corner) on the die pad on the bottom should point away from the through > hole > pins, and the sensor opening on the top of the chip should point toward the > through hole pins. > > > Can anyone advise please particularly if they have a photo of one? I > consider myself to be Kinesthetic as I learn and understand better by > watching rather than reading or hearing hence the photo would be good. > > I don't have this kit, so I can't take a photo, but if it would help, I can > make up a diagram showing the placement of the chip. > > - John > > -- > You received this message because you are subscribed to the Google Groups > "neonixie-l" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to neonixie-l+unsubscr...@googlegroups.com. > To post to this group, send an email to neonixie-l@googlegroups.com. > To view this discussion on the web, visit > > https://groups.google.com/d/msgid/neonixie-l/A571EAAE-4E87-45C7-BA83-AB38B49 > E893B%40mac.com. > For more options, visit https://groups.google.com/d/optout. > > -- > You received this message because you are subscribed to a topic in the > Google Groups "neonixie-l" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/neonixie-l/YqLvtPNf0ws/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > neonixie-l+unsubscr...@googlegroups.com. > To post to this group, send an email to neonixie-l@googlegroups.com. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/!%26!AAAAAAAAAAAYAAAAAAAAAPDddShx705MuX20yCpp0vvCgAAAEAAAAIHFbEvmV5JEkN66E75a3%2BcBAAAAAA%3D%3D%40zeelandnet.nl > . > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/CAKnEnDaVj8g_ov4W4kUWsT-nDToF8Zn9YeduRvV%2B3E7nf5_pew%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
