Nixie v2 IN-8 Board

PennyLekas·Nixie-Clock·Hardware/v2 - RP2040/IN-8 Board/Nixie v2 IN-8 Board.kicad_pcb

About the Nixie v2 IN-8 Board

Nixie v2 IN-8 Board is an open source PCB design by PennyLekas, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 100 × 75 mm, with 33 components from 18 distinct parts.

Other key parts include the NCH8200HV, VEML7700 and К155ИД1. By type, the board carries 13 resistors, 6 ICs, 4 connectors, 4 capacitors and 2 transistors.

It belongs with the displays & leds designs in this gallery.

From the project

v1 is broken and required some bodge wires to work. I have not updated the schematic and PCB to correct my mistakes. It also has some deficencies in the dimming circuit resulint in a quiet, but audible whine.

v1 is broken and required some bodge wires to work. I have not updated the schematic and PCB to correct my mistakes. It also has some deficencies in the dimming circuit resulint in a quiet, but audible whine.

v2 is in progress and will fix many issues and make the clock easier to update. It wil be using an RP2040.

Features - Automatic time seting using GPS - User sets their time zone using dip switches - Tubes dim with ambient light - Day light savings time will be controlled using a +/-1 switch - Plenty of test points for testing and hacking - USB C for power and data

Main components on the Nixie v2 IN-8 Board

NCH8200HV VEML7700 К155ИД1

Nixie v2 IN-8 Board bill of materials (BOM)

33 components, 18 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	NCH8200HV	NCH8200HV	U1
1	VEML7700	VEML7700-TV	U2
4	К155ИД1	DIP-16_W7.62mm	U3, U4, U5, U6
1	MMBTA42	SOT-23	Q1
1	PZTA92	SOT-223-3_TabPin2	Q2
3	Conn_01x10_Pin	PinHeader_2x05_P2.54mm_Vertical	J1, J2, J3
1	Conn_02x02_Odd_Even	PinSocket_2x02_P2.54mm_Vertical	J4
4	ИN-8	ИN-8	N1, N2, N3, N4
1	0.1UF 100u	C_0603_1608Metric	C1
1	0.1UF 4.7u	CP_Radial_D8.0mm_P3.50mm	C2
1	0.1UF 100n	C_0603_1608Metric	C3
1	0.1UF 10u	CP_Elec_4x5.4	C4
2	10K 100k	R_0603_1608Metric	R1, R3
1	100k	R_0603_1608Metric	R2
3	10K 10k	R_0603_1608Metric	R4, R5, R6
3	100K 22k	R_0805_2012Metric	R7, R8, R9
3	10K 22k	R_0805_2012Metric	R10, R11, R12
1	10K 100k	R_0805_2012Metric	R13

Nixie v2 IN-8 Board design files

The KiCad project lives in the PennyLekas/Nixie-Clock repository on GitHub; these links point at the commit this page was built from.

Nixie v2 IN-8 Board: common questions

How big is the Nixie v2 IN-8 Board?

The Nixie v2 IN-8 Board measures 100 × 75 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Nixie v2 IN-8 Board?

33 components, from 18 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Nixie v2 IN-8 Board design files?

From the PennyLekas/Nixie-Clock repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Nixie v2 IN-8 Board design in my own project?

Yes, under the terms of its CERN-OHL-S-2.0 license, which PennyLekas chose for the repository.

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