NixiFi
Charlio99·NixiFi·Hardware/NixiFi.kicad_pcb
About the NixiFi PCB
NixiFi is an open source ESP8266 PCB design by Charlio99, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 167 × 37 mm, with 43 components from 17 distinct parts.
Its main chip is the ESP-12E, from the ESP8266 family. Other key parts include the HV5622, PSU and AMS1117-3.3. By type, the board carries 21 resistors, 8 capacitors, 5 ICs, 4 transistors, 4 connectors and 1 switch.
It belongs with the displays & leds and iot & wireless designs in this gallery.
From the project
6-Digit NTP ESP8266 Nixie Tube Clock
NixiFi is an all in one WiFi Nixie NTP Clock board, only you have to do is to solder the components and upload the code!.
- ESP8266 based (Arduino IDE code). - NTP Time. - No spare PSUs messing around, the 170v output is handled by a small smd PSU (link in BOM). - 5V Powered and it only draws 1.5-2W. - Oled display and encoder to configure zone, auto DST, the cathode poisoning prevention, auto shutdown between specific hours, etc. - Go over all numbers at specific time to avoid cathode poisoning (can be configured with the OLED display) - Plug and play. Once you upload the code, a WiFi…

Main components on the NixiFi
NixiFi bill of materials (BOM)
43 components, 17 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ESP-12E | ESP-12E_SMD | U1 |
| 2 | HV5622 | PQFP-44_10x10mm_P0.8mm | U2, U3 |
| 1 | PSU | TypeD-PowerSupply | U4 |
| 1 | AMS1117-3.3 | SOT-223-3_TabPin2 | U5 |
| 4 | 2N7002 | SOT-23 | Q1, Q2, Q3, Q4 |
| 1 | USB_B_Micro | USB_Micro-B_Wuerth_629105150521_CircularHoles | J1 |
| 1 | OLED | PinHeader_1x04_P2.54mm_Horizontal | J2 |
| 1 | ENCODER | PinHeader_1x04_P2.54mm_Horizontal | J3 |
| 1 | PROG | PinHeader_1x04_P2.54mm_Horizontal | J4 |
| 1 | PROG_MODE | SW_SPST_TL3342 | SW1 |
| 2 | 100nF | C_0805_2012Metric | C1, C6 |
| 2 | 1uF | C_0805_2012Metric | C2, C3 |
| 2 | 0.1uF | C_0805_2012Metric | C4, C5 |
| 2 | C | CP_EIA-3216-12_Kemet-S | C7, C8 |
| 6 | 27K | R_2512_6332Metric | R1, R4, R5, R6, R9, R10 |
| 2 | 100K | R_2512_6332Metric | R2, R7 |
| 13 | 10K | R_0805_2012Metric | R3, R8, R11, R12, R13, R14, R15, R16 +5 |
NixiFi design files
The KiCad project lives in the Charlio99/NixiFi repository on GitHub; these links point at the commit this page was built from.
NixiFi: common questions
What microcontroller does the NixiFi use?
The NixiFi is built around the ESP-12E, from the ESP8266 family.
How big is the NixiFi PCB?
The NixiFi measures 167 × 37 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the NixiFi?
43 components, from 17 distinct parts. The full bill of materials is listed on this page.
Where can I download the NixiFi design files?
From the Charlio99/NixiFi repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the NixiFi design in my own project?
Yes, under the terms of its GPL-3.0 license, which Charlio99 chose for the repository.
Can I test firmware for the NixiFi 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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