FLAT 6xVFD (IV-3, IV-6) tubes arduino clock shield

Name: FLAT 6xVFD (IV-3, IV-6) tubes arduino clock shield
SKU: 23862
Price: 16.99 USD
Availability: InStock

This is only little enlarged version allows tubes lie down ;)

Designed by Bobricius in Slovakia

FLAT 6xVFD (IV-3, IV-6) tubes arduino clock shield 1

FLAT 6xVFD (IV-3, IV-6) tubes arduino clock shield 2

FLAT 6xVFD (IV-3, IV-6) tubes arduino clock shield 3

FLAT 6xVFD (IV-3, IV-6) tubes arduino clock shield 4

FLAT 6xVFD (IV-3, IV-6) tubes arduino clock shield 5

FLAT 6xVFD (IV-3, IV-6) tubes arduino clock shield 6

FLAT 6xVFD (IV-3, IV-6) tubes arduino clock shield 7

FLAT 6xVFD (IV-3, IV-6) tubes arduino clock shield 8

2021-06-02T08:50:33.686Z-7037421601069572290.jpg

2021-06-02T08:50:33.686Z-8930361601069580772.jpg

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Have you seen my other products? What you think? Your idea will be included in the next version! Fell free to write me. Anyway, your purchase or contribution via www.patreon.com/bobricius will help.

This is only little enlarged version allows tubes lie down ;)

You receive BARE PCB no components, one board is for 6 VFD tubes ..!!!!! PICTURE IS FOR REFERENCE ONLY !!! Tested only with IV6-tubes NOTE!!!!: more IV-3 versions with different pinout !!! IV-3 Confu…

NOTE!!!!: more IV-3 versions with different pinout !!!

IV-3 Confusion ...

AXIRIS IV-6 Shield for Arduino is super great project, specially power supply is very good designed. etc. filament is driven with AC voltage which is recommended for VFD. 12V input voltage is 3x multiplied to make about 32V I am redesigned board for easier soldering, all components are in lines with same value

added buttons for HOUR / MINUTES
speaker driver for make alarm clock, in current firmware is only hour beep implemented
components values on PCB
DS3231 with battery backup CR1220
Enhanced to 6 DIGIT
hand painted curved traces for more retro look
all outputs are marked on pcb for better debugging
schematic is almost unchanged, some pins are swapped for better PCB routing

I created simple CLOCK arduino sketch (firmware)

Required parts list IV‐3/IV-3a/IV-6 shield for Arduino (BOM )

1/4W subminiature carbon THT resistors

Pcs	value	Description
1	510 Ω	Ø1.8x3.2mm
2	1K	Ø1.8x3.2mm , tube light, optional
1	2K7	Ø1.8x3.2mm
1	3K9	Ø1.8x3.2mm
14	10K	Ø1.8x3.2mm
14	68K	Ø1.8x3.2mm
14	100K	Ø1.8x3.2mm
14	220K	Ø1.8x3.2mm

CERAMIC/MKT /MKM CAPACITORS

Pcs	value	Description
1	2.2 nF	-
1	100 nF	-
2	8.2 nF !!!	I am replaced with 100nF

ELECTROLYTIC CAPACITORS

Pcs	value	Description
4	22 µF 50V	-
2	100 µF 25V	-

DISCRETE SEMICONDUCTORS

Pcs	value	Description
1	1N400x	rectifier diode
4	1N5819	schottky diode
6	LED 3mm	Tube bottom light (choose color freely) , optional
14	BC547B	NPN transistor
14	BC557B	PNP transistor
1	BC639	NPN “power” transistor
1	BC640	PNP “power” transistor

INTEGRATED CIRCUITS

Pcs	value	Description
1	ICM7555	timer IC (must be CMOS version, do not use a standard 555 !)
1	DS3231	RTC chip , optional

CONNECTORS & OTHER PARTS

Pcs	value	Description
1	Arduino UNO	or clone
28	header	spacing 2.54 mm
1	CR1220	Lithium battery , optional
1	CR1220 socket	Battery holder , optional
6	tube	IV‐3/IV-3a/IV-6 VFD tube
2	switch	angled, Microswitch TACT
1	Piezo 17mm	buzzer, optional