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ESP32 Nixie Clock

2 months ago 93
  • Description
  • Documents
  • BOM
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Description

This is a simple clock for IN-14 Nixie tubes that utilizes an ESP32 for networking/time control. A DS3231 is used as the RTC for greater accuracy. The FTDI programmer for the ESP32 is not complete yet in this early version (should just need a reset button), but looks reasonable otherwise.

Documents

PCB_2020-07-30_06-35-55

Main

BOM

ID Name Designator Footprint Quantity
1 LM7805 U13 TO-220 1
2 FTDI_DEVICE JP1 FTDI_DEVICE_SIDE 1
3 470 R9,R8 R0201 2
4 10k R7,R4,R3,R2,R1 R0201 5
5 4.7k R6,R5 R0201 2
6 SN74141 U8,U6,U4,U2 DIP16 4
7 0.1u C11,C16,C18,C17,C4,C15,C8,C7,C6,C5,C2 C0201 11
8 22u C14,C10 C0201 2
9 10u C9,C3 C0201 2
10 0.33u C1 C0201 1
11 TS-1187A-B-A-B RESET,BOOT SW-SMD_4P-L5.1-W5.1-P3.70-LS6.4 2
12 AMS1117-3.3 U12 SOT-223-3_L6.5-W3.4-P2.30-LS7.0-BR 1
13 Nixie-IN-14 U7,U5,U3,U1 NIXIE IN-14 4
14 ESP32-WROOM-32DC U9 WIFIM-SMD_38P-L25.5-W18.0-P1.27 1
15 3.3V B1 BAT-SMD_CR1220-2 1
16 NCH8200HV U14 NCH8200HV SMD 1
17 DC005-2.0MM DC1 DC-IN-TH_DC005 1
18 DS3231SN# U11 SOIC-16_L10.3-W7.5-P1.27-LS10.3-BL 1

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