2 layers15.2 × 29.2 mm
2 layers118.7 × 86.4 mm
Wallbox
dkonigsberg/wallbox-board1Wall-O-Matic Microcontroller Interface Board
- Size
- 118.7 × 86.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 55
- Nets
- 60
- Pads
- 183
- Tracks, vias
- 421, 17
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 1 Nov 2017
- Updated
- 26 Aug 2021
Overview
Wallbox is an open-source printed circuit board by dkonigsberg, from the dkonigsberg/wallbox-board repository on GitHub, published under the CC-BY-SA-4.0 licence. It is a 2-layer board of 118.7 × 86.4 mm with 55 parts on 60 nets, routed with 421 tracks and 17 vias.
It is built around the ESP-12S, NCS1S2403SC and 74HC14, with the KA78R33CTU, LM7805CT and BC547 among its other parts. Its parts include 14 resistors, 11 capacitors, 9 ICs, 4 diodes and 4 connectors. It belongs with the interfaces and adapters boards and the ESP8266 boards of this library.
Main components
7
ESP-12S
SMD,24x16mm-20℃~+85℃ -90dBm 16dBm 170mA 2.4GHz 3.3V 56mA 802.11b/g/n、TCP、IP ESP8266 Chip On-board PCB Antenna Over-the-air (OTA) update UART SMD,24x16mm WiFi Modules ROHSAi-ThinkerWiFi Modules
NCS1S2403SC
插件-40℃~+105℃ 1 100kHz~400kHz 11.3mm 1W 1kV 21.9mm 3.3V 303mA 36V 470uF 78.5% 8.2mm Short Circuit Protection 插件 Isolated Power Modules ROHSMurataIsolated Power Modules
74HC14
SOP-14-40℃~+85℃ 1.9V、3.98V、4.4V、5.48V、5.9V 100mV、260mV、260mV 20uA 25ns@4.5V,50pF 2V~6V 6 74HC Noise suppression function Schmitt trigger SOP-14 Inverters ROHSJSMSEMIInverters
KA78R33CTU
TO-220F-4L-20℃~+80℃@(Ta) 1 10V 10mA 1A 3.3V 500mV@(1A) 55dB Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown、Enable control、Input overvoltage protection Positive TO-220F-4L Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSonsemiVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
LM7805CT
TO-2200℃~+70℃@(Ta) 1 1A 20V 2V@(1A) 40uV 5V 62dB@(120Hz) 8mA Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive TO-220 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
BC547
TO-92Bipolar (BJT)Jiangsu Changjing Electronics Technology (CJ)
HE721A0510
DIP,7.2x19.1mm-40℃~+85℃ 1 Set Normally Open: 1A (SPST NO) 1ms 1ms 200V@DC 500mA 5V Non-Polarized Single Coil (with Flyback Diode) DIP,7.2x19.1mm Reed Relays ROHSLittelfuseReed Relays
README
README.mdWallbox Interface Board
Introduction
This repository provides the KiCad project containing the complete circuit schematic, bill-of-materials, and PCB layout for the Wall-O-Matic Interface Board.
The interface board is a device designed to take a Seeburg Wall-O-Matic jukebox remote, a common sight on a sterotypical 1950's diner tabletop, and interface it to a Sonos system via Wi-Fi using an ESP8266 (ESP-12S).
The main repository for the schematics is: https://github.com/dkonigsberg/wallbox-board
The source code for the firmware that runs on this board is here: https://github.com/dkonigsberg/wallbox-code
A good overview of the project can be found in these blog posts:
- Part 1 - Introduction
- Part 2 - Procuring a Functional Wallbox
- Part 3 - Decoding the Pulses
- Part 4 - Inserting Coins
- Part 5 - Designing the Circuit
- Part 6 - Developing the Software
You can see a video about the project here:
Notes
The component libraries used in this project are a bit of a hack job, pulling from many different sources. The KiCad cache file is included so that the project can actually be opened without having to duplicate this.
Parts
55| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 1k | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2, R4, R5, R6, R7, R8, R9 |
| 5 | 10k | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R10, R11, R13, R14 |
| 4 | 0.1uF | Capacitors_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm | C3, C4, C7, C11 |
| 4 | TPC817C | Housings_DIP:DIP-4_W7.62mm_LongPads | U3, U4, U5, U6 |
| 3 | 2W005G | wallbox-footprints:D-BRIDGE-WOG | D1, D2, D4 |
| 3 | BC547 | TO_SOT_Packages_THT:TO-92_Molded_Narrow | Q1, Q2, Q3 |
| 3 | HE721A0510 | wallbox-footprints:HE700_DIP-14 | RL1, RL2, RL3 |
| 2 | 0.33uF | Capacitors_THT:C_Disc_D6.0mm_W2.5mm_P5.00mm | C6, C9 |
| 2 | 100uF | Capacitors_THT:CP_Radial_D8.0mm_P3.50mm | C5, C8 |
| 2 | 10uF | Capacitors_THT:CP_Radial_D5.0mm_P2.00mm | C2, C10 |
| 1 | 1N4007 | Diodes_THT:D_DO-41_SOD81_P12.70mm_Horizontal | D3 |
| 1 | 2.2uF | Capacitors_THT:CP_Radial_D5.0mm_P2.00mm | C1 |
| 1 | 4.7k | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R12 |
| 1 | 47k | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3 |
| 1 | 74HC14 | Housings_DIP:DIP-14_W7.62mm_LongPads | U7 |
| 1 | Config | Buttons_Switches_THT:SW_PUSH_6mm_h5mm | SW2 |
| 1 | ESP-12S | wallbox-footprints:ESP-12S_SMD | U9 |
| 1 | From Transformer | Connectors_Terminal_Blocks:TerminalBlock_Pheonix_MKDS1.5-4pol | J1 |
| 1 | KA78R33 | TO_SOT_Packages_THT:TO-220-4_Vertical | U1 |
| 1 | LM7805CT | TO_SOT_Packages_THT:TO-220_Vertical | U2 |
| 1 | LOGO | wallbox-footprints:LogicProbe | G*** |
| 1 | NCS1S2403SC | wallbox-footprints:DCDC-Conv_muRata_NCSxxxxSC | U8 |
| 1 | Program | Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm | J4 |
| 1 | Reset | Buttons_Switches_THT:SW_PUSH_6mm_h5mm | SW1 |
| 1 | To Wallbox | Connectors_Terminal_Blocks:TerminalBlock_Pheonix_MKDS1.5-6pol | J2 |
| 1 | UART | Pin_Headers:Pin_Header_Straight_1x04_Pitch2.54mm | J3 |
The 51 most common of 55 parts.
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Questions
How big is the Wallbox PCB?
It measures 118.7 × 86.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Wallbox use?
55 parts, built around the ESP-12S, NCS1S2403SC, 74HC14 and KA78R33CTU. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Wallbox KiCad files?
From the dkonigsberg/wallbox-board repository on GitHub, at the commit this page was made from: the board is wallbox.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Wallbox design in my own project?
Its repository publishes it under the CC-BY-SA-4.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).