2 layers44.5 × 61 mm
2 layers344.8 × 217.8 mm
Clockblock pcb
wileycousins/clockblock2minimalistic LED clock in a block
- Size
- 344.8 × 217.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 604
- Nets
- 87
- Pads
- 1,055
- Tracks, vias
- 3,723, 384
- Pours
- 29
- Routed
- Yes
- KiCad
- KiCad 3
- Created
- 24 Sep 2013
- Updated
- 21 Aug 2021
Overview
Clockblock pcb is an open-source printed circuit board by wileycousins, from the wileycousins/clockblock repository on GitHub. It is a 2-layer board of 344.8 × 217.8 mm with 604 parts on 87 nets, routed with 3,723 tracks and 384 vias.
It is built around the ATTINY167-MU, TLC5971PWP and FT230XQ-R, with the PCF2129AT/2 among its other parts. Its parts include 54 capacitors, 45 diodes, 26 resistors, 14 ICs and 8 connectors. It belongs with the lEDs and displays boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
4
ATTINY167-MU
VQFN-32-EP(5x5)VQFN-32-EP(5x5) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
TLC5971PWP
HTSSOP-20-EP-40℃~+85℃ 1% 12 20MHz 60mA PWM HTSSOP-20-EP LED Drivers ROHSTexas InstrumentsLED Drivers
FT230XQ-R
QFN-16-EP(4x4)-40℃~+85℃ 125uA 3.3V~5V 8mA USB 2.0 USB to UART QFN-16-EP(4x4) USB Converters ROHSFTDIUSB Converters
PCF2129AT/2
SOIC-20-300mil-40℃~+85℃ 0.7uA 1.8V~4.2V 700nA Built-in I2C Watchdog timer、Temperature compensation、Backup power management and battery charging、Battery low-voltage detection、Timestamp function、Programmable clock output、Alarm function、Locking and tamper-proof、Periodic interrupt output Yes SOIC-20-300mil Real Time Clocks ROHSNXP SemiconductorsReal Time Clocks
README
README.mdclockblock
An LED clock in a block of wood. This repository contains the electronics design files and firmware source code.
firmware
Firmware is written in C++ and compiled in GCC 4.6.2 with AVR modifications. If you're using a Mac, install CrossPack for AVR 2013-02-12 for all the necessary tools. Otherwise, do some Googling.
The clockblock uses an ATTiny167 with 16KB of flash and 512B of RAM. At compilation, the application takes about 6KB of program and 30B of RAM. Currently firmware must be flashed onto the board with an ISP, but hardware supports USB bootloading*. An Arduino-compatible bootloader is in the works.
*v1.0 hardware has a trace that must be cut and replaced with a capacitor for this to work. See issue #6.
hardware
The PCBs are designed in KiCad. There are gerber files in the repo, but your best bet is to generate them yourself from KiCad. Components are from these libraries, but you shouldn't have to install them to view the schematic and board files if you don't want to.
The boards are almost entirely surface mount, so solder-paste and a reflow tool of some sort (hot-air gun, toaster, hot-plate) are recommended. If anyone manages this with just an iron, I'd love to see pictures, because that's awesome. Shameless self promotion: I know about this pretty good toaster oven control board for solder reflow.
Parts
604| Qty | Value | Footprint | References |
|---|---|---|---|
| 100 | M2 | M2, M2, M2, M2, M2, M2, M2, M2, M2, M2, M2, M2, M2, M2, M2, M2 +84 | |
| 50 | VLED | 3x5MM_SM-PAD | PAD1, PAD1, PAD1, PAD1, PAD1, PAD1, PAD1, PAD1, PAD1, PAD1, PAD1, PAD1, PAD1, PAD5, PAD5, PAD5 +34 |
| 37 | LED | LED-5mm | LED1, LED1, LED1, LED1, LED1, LED1, LED1, LED1, LED1, LED1, LED1, LED1, LED1, LED1, LED1, LED1 +21 |
| 37 | OUT | 3x5MM_SM-PAD | PAD6, PAD6, PAD6, PAD6, PAD6, PAD6, PAD6, PAD6, PAD6, PAD6, PAD6, PAD6, PAD6, PAD6, PAD6, PAD6 +21 |
| 36 | VAL** | MOUSEBITE | MOUSEBITE, MOUSEBITE, MOUSEBITE, MOUSEBITE, MOUSEBITE, MOUSEBITE, MOUSEBITE, MOUSEBITE, MOUSEBITE, MOUSEBITE, MOUSEBITE, MOUSEBITE, MOUSEBITE, MOUSEBITE, MOUSEBITE, MOUSEBITE +20 |
| 26 | 10uF | 0603(1608m) | C4, C4, C10, C10, C11, C11, C12, C12, C13, C13, C14, C14, C15, C15, C21, C21 +10 |
| 24 | HR | TE_1551573-5_SPRING-FINGER | SPR2, SPR2, SPR10, SPR10, SPR14, SPR14, SPR18, SPR18, SPR22, SPR22, SPR26, SPR26, SPR30, SPR30, SPR34, SPR34 +8 |
| 24 | MIN | TE_1551573-5_SPRING-FINGER | SPR3, SPR3, SPR11, SPR11, SPR15, SPR15, SPR19, SPR19, SPR23, SPR23, SPR27, SPR27, SPR31, SPR31, SPR35, SPR35 +8 |
| 24 | SEC | TE_1551573-5_SPRING-FINGER | SPR4, SPR4, SPR12, SPR12, SPR16, SPR16, SPR20, SPR20, SPR24, SPR24, SPR28, SPR28, SPR32, SPR32, SPR36, SPR36 +8 |
| 24 | VLED | TE_1551573-5_SPRING-FINGER | SPR1, SPR1, SPR13, SPR13, SPR17, SPR17, SPR21, SPR21, SPR25, SPR25, SPR29, SPR29, SPR33, SPR33, SPR37, SPR37 +8 |
| 13 | HOUR | 3x5MM_SM-PAD | PAD2, PAD2, PAD2, PAD2, PAD2, PAD2, PAD2, PAD2, PAD2, PAD2, PAD2, PAD2, PAD2 |
| 13 | HOUR | 2x3MM_SM-PAD | LND2, LND2, LND2, LND2, LND2, LND2, LND2, LND2, LND2, LND2, LND2, LND2, LND2 |
| 13 | MIN | 3x5MM_SM-PAD | PAD3, PAD3, PAD3, PAD3, PAD3, PAD3, PAD3, PAD3, PAD3, PAD3, PAD3, PAD3, PAD3 |
| 13 | MIN | 2x3MM_SM-PAD | LND3, LND3, LND3, LND3, LND3, LND3, LND3, LND3, LND3, LND3, LND3, LND3, LND3 |
| 13 | SEC | 3x5MM_SM-PAD | PAD4, PAD4, PAD4, PAD4, PAD4, PAD4, PAD4, PAD4, PAD4, PAD4, PAD4, PAD4, PAD4 |
| 13 | SEC | 2x3MM_SM-PAD | LND4, LND4, LND4, LND4, LND4, LND4, LND4, LND4, LND4, LND4, LND4, LND4, LND4 |
| 13 | VLED | 2x3MM_SM-PAD | LND1, LND1, LND1, LND1, LND1, LND1, LND1, LND1, LND1, LND1, LND1, LND1, LND1 |
| 12 | 0.1uF | 0603(1608m) | C16, C16, C17, C17, C18, C18, C24, C24, C26, C26, C27, C27 |
| 10 | 1uF | 0603(1608m) | C1, C1, C2, C2, C3, C3, C19, C19, C20, C20 |
| 9 | VAL** | FIDUCIAL | FIDUCIAL, FIDUCIAL, FIDUCIAL, FIDUCIAL, FIDUCIAL, FIDUCIAL, FIDUCIAL, FIDUCIAL, FIDUCIAL |
| 8 | MOUSEBITE | , , , , , , , | |
| 8 | M3 | M3, M3, M3, M3, M3, M3, M3, M3 | |
| 8 | 1kΩ | 0603(1608m) | R10, R10, R11, R11, R12, R12, R13, R13 |
| 8 | VAL** | M2 | M2, M2, M2, M2, M2, M2, M2, M2 |
| 8 | opt10kΩ | 0603(1608m) | R4, R4, R5, R5, R6, R6, R7, R7 |
| 6 | 1.1kΩ±1% | 0603(1608m) | R1, R1, R2, R2, R3, R3 |
| 6 | TLC5971 | HTSSOP20 | IC1, IC1, IC2, IC2, IC3, IC3 |
| 4 | 27Ω | 0603(1608m) | R8, R8, R9, R9 |
| 4 | 47pF | 0603(1608m) | C22, C22, C23, C23 |
| 4 | VAL** | 0.125in_NPTH | 0.125in_NPTH, 0.125in_NPTH, 0.125in_NPTH, 0.125in_NPTH |
| 2 | 3A | 0603(1608m) | FB1, FB1 |
| 2 | 3V-COINCELL | LINX_BAT-HLD-012-SMT | BT1, BT1 |
| 2 | 4.7uF | 1206(3216m)_tant-cap | C25, C25 |
| 2 | ATTINY167 | TSSOP20 | IC6, IC6 |
| 2 | AVR_ISP | 2x3-array | P14, P14 |
| 2 | FT230X | SSOP16 | IC7, IC7 |
| 2 | HEART | 0603(1608m)_led | LED2, LED2 |
| 2 | HOUR | SPST_6MM_sm | S1, S1 |
| 2 | MAINtoUSB | 2x5-PIN-ARRAY_P100MIL_sm | P15, P15 |
| 2 | MIN | SPST_6MM_sm | S2, S2 |
| 2 | MODE | SPST_6MM_sm | S3, S3 |
| 2 | PCF2129AT | SOIC20 | IC4, IC4 |
| 2 | PWR | 0603(1608m)_led | LED5, LED5 |
| 2 | RX | 0603(1608m)_led | LED4, LED4 |
| 2 | TLV71333 | SOT23-5 | IC5, IC5 |
| 2 | TX | 0603(1608m)_led | LED3, LED3 |
| 2 | USB | MICROUSB_sm | J2, J2 |
| 2 | USBtoMAIN | 2x5-PIN-ARRAY_P100MIL_sm | P13, P13 |
Questions
How big is the Clockblock pcb PCB?
It measures 344.8 × 217.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Clockblock pcb use?
604 parts, built around the ATTINY167-MU, TLC5971PWP, FT230XQ-R and PCF2129AT/2. 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 Clockblock pcb KiCad files?
From the wileycousins/clockblock repository on GitHub, at the commit this page was made from: the board is pcb/clockblock-pcb.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Clockblock pcb design in my own project?
Its repository states no licence, so its author keeps all rights: ask wileycousins before reusing the design.
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