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Hello,
Here is the electronic diagram of the Plasma Button.
This is a second version (there was one diode missing -D1- in the first version, do not hesitate to signal any mistake, I will fix them ...

Best regards

Hello, here is a very easy way to check the accuracy of the humidity external sensor. A simple, easy to do at home means of calibrating hygrometers uses standard salt and a sealed container. Table salt, when used properly, will maintain an exact 75% humidity in a perfectly sealed environment. So, to...

Hello, Related to the problem I had when connecting a GPS unit that made the clock crashed when sending data without a 3Dfix: I found a workaround with the GPS unit: I made a small adapter so that the GPS will send data to the clock only when a 3Dfix is OK. With that, the clock always receive data t...

Hi Tony, Related to the GPS that could cause overflow problem: here are the sequence that generate the problem. When the GPS has no fix, it send the following sentences: $GPGSA,A,1,,,,,,,,,,,,,99.99,99.99,99.99*30 $GPGSV,1,1,01,24,,,36*7B $GPGLL,,,,,,V,N*64 $GPRMC,,V,,,,,,,,,,N*53 $GPVTG,,,,,,,,,N*3...

Hi Tony, I have a problem with the GPS: - I connected a Neo-6 GPS unit (consumption is below 70mA) and at the first attempt, it worked well : the clock displayed the time synchronized with the GPS - but, after powering down the clock and powering it up again (with the GPS connected), the clock start...

Hi Tony, I got a faint glow on the DP's when the tube display a 3, 4, 5 or 7. This is due to the fact that when a low level is applied on D8 (or D16), it is supposed to switch off T11: But with the 0,6V voltage drop in D8 (or D16), the voltage between T11 base and emitter is around 0.6V instead of 0...

Here is the electronic diagram of the V3 Cylinder clock

Hello, I spent a few hours studying PCBs (with the help of Photoshop) and I drew the Nixie thermometer electronic diagram. They served me well to understand the principle of operation. I hope this will help others ! 28/11/2017: I uploaded a new version of the electronic diagram (fix a few connection...

Hello,
I spent a few hours studying PCBs (with the help of Photoshop) and I drew the Nixie clock electronic diagram.
They served me well to understand the principle of operation. I hope this will help others !

Hi Tony,
I ordered the thermometer a couple of weeks ago. Could you tell me if the PIC is programmed with the version that recognize an external DHT22/AM2302 ?
Or should I re-programmed it with the right version?

Thank you in advance for your answer

regards