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Description

The Arduino Nixie Clock is a beautiful mix of old and new, resulting in a high accuracy, low 

power clock which will be a talking point in your home.

The clock has the following features:

Latest technology, highly reliable and accurate.

Tried and tested design, with many hundreds of clocks sold.

Based on the Arduino micro-controller: Easy to program an well documented.

Low power consumption.

Long tube life:

Anti Cathode Poisoning (ACP) and configurable blanking makes sure that the tubes 
will stay healthy for many years with no intervention from you.

Automatic blanking using a PIR (Passive InfraRed sensor) so that the tubes are 
turned off when no one is in the same room as the clock.

The multiplexed display and automatic dimming used in this design extends the life 
of the tubes indefinitely. Some other designs run the tubes too “hard”, and this 

causes a rapid degradation in the useful life of the tube.

All settings are stored in non-volatile memory. Once they are set, they are remembered 

forever, or until you change them again.

RGB back lighting allows you to set the the color of the back lighting to practically any 

color you desire.

Ambient light sensing, with automatic tube dimming, which sets the tube and LED 

brightness according to the light conditions. This also increases tube life.

Absolutely silent operation. Some Nixie clocks emit an irritating “buzz” or “hiss” which is

especially annoying if you keep the clock in a bedroom.

Automatic week day or weekend blanking, extends the life of tubes even further

Automatic time of day blanking, can blank between a start hour and an end hour, on 
week days, weekends or every day

Configurable suppression of Anti Cathode Poisoning when the clock is fully dimmed. In 
the middle of the night, all the digits lighting up at full brightness could be disturbing. 

You can choose to stop ACP when the clock is fully dimmed

The High Voltage Generator auto-calibrates itself to match your tubes and power supply,

meaning that the power consumption is the lowest possible. (Usually 2W when fully 
bright, 0.4W when blanked).

Highly accurate when using RTC module:

Battery backed, temperature compensated, high accuracy clock. The accuracy is 

Accuracy ±2ppm from 0°C to +40°C. (Maximum 1 minute per year).

The battery life should be 3 years in normal use.

Retains the date and time even when turned off (not just for a few minutes, but 
for as long as the battery lasts)

Leap Year Compensation Valid Up to the year 2100

Extremely accurate when using the on-board Wifi module:

The time never drifts, is always right to within 1 second.

Automatically compensates for Daylight Savings Time changes, leap years and 

seconds.

The controller can be programmed without removing it from the board, due to the ICSP 

port on the board.

Summary of Contents for Modular Rev3

Page 1: ...Arduino Nixie Clock Modular Rev3 Operating Instructions Firmware V348 Supported Models Modular Revision 3 NixieClockUserManualV348...

Page 2: ...ckage Contact Information If you want to get in contact with us please email to nixie protonmail ch We ll usually get back to you right away We can help you with kits or construction We also offer dis...

Page 3: ...s also increases tube life Absolutely silent operation Some Nixie clocks emit an irritating buzz or hiss which is especially annoying if you keep the clock in a bedroom Automatic week day or weekend b...

Page 4: ...ress the pushbutton when the display shows 88 88 88 and the clock will enter calibration mode The clock will display 88 88 88 for several seconds This is for the calibration of the High Voltage Genera...

Page 5: ...he clock comes with a Real Time Clock RTC module which provides a battery backed time source that remembers the time even when the clock is not powered up Overview Normally the clock is in Time Displa...

Page 6: ...100 darkest 999 brightest Version Display the version number The format will be VV vv 07 where major version is VV minor version is vv and the 21 is the id for the version display 00 48 04 IP Address...

Page 7: ...f you do nothing The clock is in this mode In this mode a short press cycles through the values given in Time Display Mode but always returns to the standard time display after 5 seconds Time and Date...

Page 8: ...very other day 6 Hours or week days This blanks all day during the week days and between the start and end hour every other day 7 Hours on weekends This blanks between the start and end hour on weeken...

Page 9: ...efore blanking the display in seconds Default 300 Max 3600 Min 60 17 flashing PIR Timeout Shorter You can set the amount of time that the clock will wait before blanking the display in seconds Back Li...

Page 10: ...the PWM On pulse is Normally you should not have to change this but you can try changing this is the HV generation is noisy or you have unusual tubes 27 flashing Increase Minimum dim This setting allo...

Page 11: ......

Page 12: ...tton more than 8 seconds the clock will enter filament healing mode All the power will be placed through a single filament of a single digit to clean it A short press will change the selected filament...

Page 13: ...Revisions V0348 22Jun2017 Split user manual and construction manual...

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