Nixie clock
About the Nixie clock PCB
Nixie clock is an open source ESP8266 PCB design by sixteenlines, published on GitHub. It is a 2-layer board measuring 160 × 60 mm, with 122 components from 47 distinct parts.
Its main chip is the SBC-ESP8266-12F, from the ESP8266 family. Other key parts include the HV5122PJ-G, LM1117MP-3.3/NOPB, FT232RNL-REEL, MCP23008-E/SO and LT3757EMSE. By type, the board carries 43 resistors, 29 capacitors, 19 transistors, 8 ICs, 8 LEDs and 5 diodes.
It belongs with the displays & leds designs in this gallery.
Main components on the Nixie clock
Nixie clock bill of materials (BOM)
122 components, 47 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | HV5122PJ-G HV5122 | PQFP-44_10x10mm_P0.8mm | U1, U2 |
| 1 | LM1117MP-3.3/NOPB LM1117MP-3.3 | SOT-223-3_TabPin2 | U3 |
| 1 | FT232RNL-REEL FT232RNL | SSOP-28_5.3x10.2mm_P0.65mm | U4 |
| 1 | MCP23008-E/SO MCP23008 | SOIC-18W_7.5x11.6mm_P1.27mm | U5 |
| 1 | SBC-ESP8266-12F ESP-12F | ESP-12E | U6 |
| 1 | LT3757EMSE | MSOP-10-1EP_3x3mm_P0.5mm_EP1.68x1.88mm | U7 |
| 1 | NCV1117ST12T3G NCP1117-12 | SOT-223-3_TabPin2 | U8 |
| 12 | MPSA92 | TO-92L_Inline_Wide | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 +4 |
| 5 | BSS138 | SOT-23W | Q13, Q16, Q17, Q18, Q19 |
| 1 | UMH3NTN UMH3N | SOT-363_SC-70-6 | Q14 |
| 1 | IPD50R3K0CEAUMA1 IPD50R3K0CE | TO-252-2 | Q15 |
| 1 | MINISMDC110F/24-2 2,2A | Fuse_1812_4532Metric_Pad1.30x3.40mm_HandSolder | F1 |
| 6 | DNP IN-8 | IN-8 | N1, N2, N3, N4, N5, N6 |
| 1 | EG1224 | SW_E-Switch_EG1224_SPDT_Angled | SW1 |
| 1 | DA2032-ALD | SOP250P2197X889-12N | T1 |
| 1 | USB4105-GF-A | USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | USB1 |
| 6 | DNP APA-106-F5 | LED_D5.0mm-4_RGB | LED1, LED2, LED3, LED4, LED5, LED6 |
| 2 | DNP Neon Lamp | LED_D5.0mm | NE1, NE2 |
| 1 | 599-0480-127F LED | LED_1206_3216Metric | D1 |
| 1 | 599-0410-127F LED | LED_1206_3216Metric | D2 |
Show 27 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | PRTR5V0U2X-QR PRTR5V0U2X | SOT-143 | D3 |
| 1 | P6SMB6.8A/TR13 P6SMB6,8A | D_SMB | D4 |
| 1 | RFN1LAM6STR | RFN1LAM6STR | D5 |
| 11 | C0805C225K8PACTU 2.2u | C_0805_2012Metric | C1, C2, C7, C8, C9, C10, C11, C12 +3 |
| 3 | C0603C104K5RAC9109 100n | C_0603_1608Metric | C3, C4, C6 |
| 1 | C1206C106K8RAC 10u | C_1206_3216Metric | C5 |
| 1 | GRM21BR60J226ME39L 22u | C_0805_2012Metric | C14 |
| 4 | GRM32ER71A476KE15L 47u | C_1210_3225Metric | C15, C16, C17, C18 |
| 3 | GRM188C81A106MA73D 10u | C_0603_1608Metric | C19, C28, C29 |
| 1 | C0603C104K5RAC9109 100n | CAPC1608X90N | C20 |
| 1 | C0603C101K8RACAUTO 100p | C_0603_1608Metric | C21 |
| 1 | 0603ZC223KAT2A 22n | C_0603_1608Metric | C22 |
| 1 | 0603ZC103KAT4A 10n | C_0603_1608Metric | C23 |
| 2 | C1206C224KARACAUTO 220n | C_1206_3216Metric | C24, C25 |
| 6 | RC1206JR-7W330KL 330K | R_1206_3216Metric | R1, R2, R3, R4, R5, R6 |
| 6 | CR1206-FX-3300ELF 300 | R_1206_3216Metric | R7, R8, R9, R10, R11, R12 |
| 1 | CRCW120610K0FKEA 10K | R_1206_3216Metric | R13 |
| 2 | ESR03EZPF1000 100 | R_0603_1608Metric | R14, R15 |
| 15 | CMP0603AFX-1002ELF 10K | R_0603_1608Metric | R16, R17, R18, R19, R22, R25, R30, R32 +7 |
| 2 | ERJ-UP3J512V 5K1 | R_0603_1608Metric | R20, R21 |
| 4 | RCS0603140KFKEA 140K | R_0603_1608Metric | R23, R24, R40, R41 |
| 1 | ERJ-PA3F22R0V 22 | R_0603_1608Metric | R26 |
| 1 | CFN1206-JZ-R020ELF 0.02 1W | R_1206_3216Metric | R27 |
| 1 | RCV12061M00FKEAAT 1M | R_1206_3216Metric | R28 |
| 1 | CRCW060363K4FKEA 63.4K | R_0603_1608Metric | R29 |
| 2 | CRCW06034K70FKEAHP 4.7k | R_0603_1608Metric | R31, R42 |
| 1 | MCT06030Z0000ZPW00 0 | R_0603_1608Metric | R43 |
Nixie clock design files
The KiCad project lives in the sixteenlines/nixie-clock repository on GitHub; these links point at the commit this page was built from.
Nixie clock: common questions
What microcontroller does the Nixie clock use?
The Nixie clock is built around the SBC-ESP8266-12F, from the ESP8266 family.
How big is the Nixie clock PCB?
The Nixie clock measures 160 × 60 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Nixie clock?
122 components, from 47 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 clock design files?
From the sixteenlines/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 clock design in my own project?
The repository has no license, so all rights stay with sixteenlines. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Nixie clock without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP8266 firmware against it before you order a PCB.
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