4 layers49.5 × 21.6 mm
2 layers221 × 221 mm
WordclockPCB
maelgui/wordclockThis repository contains every files needed to build the clock
- Size
- 221 × 221 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 159
- Nets
- 105
- Pads
- 485
- Tracks, vias
- 970, 148
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 20 Jul 2021
- Updated
- 25 Aug 2024
Overview
WordclockPCB is an open-source printed circuit board by maelgui, from the maelgui/wordclock repository on GitHub. It is a 2-layer board of 221 × 221 mm with 159 parts on 105 nets, routed with 970 tracks and 148 vias.
It is built around the ATMEGA328P-AU, CH340E and HC-05, with the CAP1203-1-SN, DHT22 and MIC5891YN among its other parts. Its parts include 102 diodes, 20 resistors, 13 capacitors, 10 ICs and 4 connectors. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
9
ATMEGA328P-AU
TQFP-32(7x7)-40℃~+85℃ 1.8V~5.5V 10bit 1KB 20MHz 23 2KB 32KB 8 Bit AVR Built-in FLASH TQFP-32(7x7) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
CH340E
MSOP-10150uA 20mA 2Mbps 3.3V、5V Transceiver USB 2.0 MSOP-10 USB Converters ROHSWCH (Nanjing Qinheng Microelectronics)USB Converters
HC-05
Bluetooth to Serial Port ModuleGENERICUncategorised
CAP1203-1-SN
SOIC-8-40℃~+125℃ 3 3V~5.5V 50uA 750uA 8kV Capacitive Touch、自动灵敏度校准、防水抗干扰触摸、手势检测 SOIC-8 Touch Sensors ROHSMicrochip TechnologyTouch Sensors
DHT22
插件-40℃~+80℃ 3.3V 5%RH~99%RH 500uA ±3%RH 插件 Temperature and Humidity Sensor ROHSHAIGUTemperature And Humidity Sensor
MIC5891YN
PDIP-16-55℃~+125℃ 100uA 4.5V~15V 75ns 75ns 8 MIC5891 Open Drain PDIP-16 Latches ROHSMicrochip TechnologyLatches
TPIC6B595N
PDIP-20-40℃~+125℃ 1 4.5V~5.5V 8 Asynchronous clear function、Output enable Open-drain Serial-to-Serial or Parallel TPIC PDIP-20 Shift Registers ROHSTexas InstrumentsShift RegistersDS3231MZ+
SOIC-8-40℃~+85℃ 2.3V~5.5V I2C Temperature compensation、Backup power management and battery charging、Alarm function、Periodic interrupt output SOIC-8 Real Time Clocks ROHSMaxim Integrated (Analog Devices)Real Time Clocks
CR1220-2
--40~80℃ Battery base CR1220 Phosphor bronze - Battery holder base ROHSQ&JButton And Strip Battery Connector
README
README.mdWordclock
Building the clock
This repository contains every files needed to build the clock
- PCB
- Vinyle cutout layout
- 3D model for diffuser
Using the clock
Firmware for the clock and android app for managing it can be found here :
Parts
159| Qty | Value | Footprint | References |
|---|---|---|---|
| 100 | LED | LED_SMD:LED_1210_3225Metric_Pad1.42x2.65mm_HandSolder | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D100 +84 |
| 11 | 0.1uF | Capacitor_SMD:C_0805_2012Metric | C1, C4, C5, C6, C7, C8, C9, C10, C11, C12, C13 |
| 10 | 75 | Resistor_SMD:R_0805_2012Metric | R1, R2, R3, R4, R5, R6, R7, R8, R9, R10 |
| 3 | 10K | Resistor_SMD:R_0805_2012Metric | R13, R15, R20 |
| 2 | 22pF | Capacitor_SMD:C_0805_2012Metric | C2, C3 |
| 2 | 2k2 | Resistor_SMD:R_0805_2012Metric | R17, R18 |
| 2 | LED | LED_SMD:LED_0805_2012Metric | D101, D102 |
| 2 | MIC5891 | Package_SO:SOIC-16W_7.5x10.3mm_P1.27mm | U4, U6 |
| 2 | TPIC6B595 | Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm | U9, U10 |
| 2 | USB_B_Micro | Connector_USB:USB_Micro-B_Amphenol_10103594-0001LF_Horizontal | J1, J1 |
| 1 | 10k | Resistor_SMD:R_0805_2012Metric | R12 |
| 1 | 16MHz | Crystal:Crystal_SMD_HC49-SD_HandSoldering | Y1 |
| 1 | 1K | Resistor_SMD:R_0805_2012Metric | R11 |
| 1 | 1M | OptoDevice:R_LDR_4.9x4.2mm_P2.54mm_Vertical | R19 |
| 1 | 2k | Resistor_SMD:R_0805_2012Metric | R14 |
| 1 | 4,7K | Resistor_SMD:R_0805_2012Metric | R16 |
| 1 | ATmega328P-AU | Package_QFP:TQFP-32_7x7mm_P0.8mm | U8 |
| 1 | AVR-ISP-6 | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical_SMD | J2 |
| 1 | CAP1203 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | CH340E | Package_SO:TSSOP-10_3x3mm_P0.5mm | U5 |
| 1 | CR1220 | Battery:BatteryHolder_MPD_BC2003_1x2032 | BT1 |
| 1 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J3 |
| 1 | DHT22 | Sensor:Aosong_DHT11_5.5x12.0_P2.54mm | U3 |
| 1 | DS3231M | Package_SO:SOIC-16W_7.5x10.3mm_P1.27mm | U7 |
| 1 | HC-05 | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | U1 |
| 1 | LOGO | WordclockPCB:logo | G*** |
| 1 | SW_DPDT_x2 | JS202011SCQN:SW_JS202011SCQN | SW3 |
| 1 | SW_Push | Button_Switch_SMD:SW_Push_1P1T_NO_6x6mm_H9.5mm | SW2 |
| 1 | SW_SPDT | Button_Switch_SMD:SW_SPDT_CK-JS102011SAQN | SW1 |
The 155 most common of 159 parts.
Questions
How big is the WordclockPCB PCB?
It measures 221 × 221 mm and has 2 copper layers, 1.6 mm thick.
What parts does the WordclockPCB use?
159 parts, built around the ATMEGA328P-AU, CH340E, HC-05 and CAP1203-1-SN. 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 WordclockPCB KiCad files?
From the maelgui/wordclock repository on GitHub, at the commit this page was made from: the board is pcb/WordclockPCB.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the WordclockPCB design in my own project?
Its repository states no licence, so its author keeps all rights: ask maelgui before reusing the design.
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