2 layers140.5 × 30 mm
Type e
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards
16 parts3kApache-2.0
2 layers152.4 × 33 mm
Clock MiniM4 Pelican
CedarGroveStudios/Clock_MiniM4_Pelican4A minimal but large clock in a Pelican 1040 Micro Case with CircuitPython.
- Size
- 152.4 × 33 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 16
- Nets
- 58
- Pads
- 108
- Tracks, vias
- 199, 12
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 1 Jun 2020
- Updated
- 16 Sep 2023
Overview
Clock MiniM4 Pelican is an open-source printed circuit board by CedarGroveStudios, from the CedarGroveStudios/Clock_MiniM4_Pelican repository on GitHub. It is a 2-layer board of 152.4 × 33 mm with 16 parts on 58 nets, routed with 199 tracks and 12 vias.
Its parts include 3 connectors, 1 IC and 1 switch. It belongs with the lEDs and displays boards of this library.
README
README.mdClock_MiniM4_Pelican (Clock Minima)
A minimal but large clock in a Pelican 1040 Micro Case with CircuitPython
The Clock_MiniM4 is an RTC-based minimal LED display clock implementation inspired by John Park's MetroMinimalist Clock design. The clock uses custom CircuitPython libraries CedarGroveStudios/Unit_Converter for automatic Daylight Saving Time (DTS) and CedarGroveStudios/Clock_Builder for display and user interface functions.
Caution: Under elevated temperature conditions, the sealed Pelican case may not sufficiently dissipate the heat from the clock electronics. A test of the internal operating temperature measured 80F (27C) when interior room temperature was nominally 77F (25C). If the clock will be operated in warmer environments, it is recommended that some holes be drilled into the case to allow air flow.
Photo 1. During assembly.
Photo 2. Test of auxilliary day-of-week display.
Parts
16| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | STEMMA-QT_LOGO | Adafruit:New_STEMMA-QT_logo | G***, G*** |
| 1 | 1.2-inch_7-segment_LED_HT16K33_backpack | Adafruit:1.2-inch_7-segment_LED_HT16K33_backpack | U1 |
| 1 | 2.1mm_THT_DC_panel_power_conn_610 | Adafruit:2.1mm_THT_DC_panel_power_conn_610 | J** |
| 1 | 4-Bit_Level_Converter | Adafruit:4-Bit_Level_Converter_757 | M3 |
| 1 | 5V_POWER_INPUT | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | Binka | Adafruit:Blinka | G*** |
| 1 | DS3231_RTC_FeatherWing | Adafruit:Adafruit_Feather_M4_Express | M2 |
| 1 | Feather_M4_Express | Adafruit:Adafruit_Feather_M4_Express | M1 |
| 1 | LOGO | Adafruit:CG_logo_25-4mm | G*** |
| 1 | PIEZO_SPEAKER | Socket_Strips:Socket_Strip_Straight_1x02_Pitch2.54mm | BZ1 |
| 1 | ROTARY_ENCODER | digikey-footprints:Rotary_Encoder_Switched_PEC11R_mntg_hole | S1 |
| 1 | STEMMA-QT_3V | Connector_JST:JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | J2 |
| 1 | STEMMA-QT_5V | Connector_JST:JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | J3 |
The 14 most common of 16 parts.
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Questions
How big is the Clock MiniM4 Pelican PCB?
It measures 152.4 × 33 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Clock MiniM4 Pelican use?
16 parts. 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 Clock MiniM4 Pelican KiCad files?
From the CedarGroveStudios/Clock_MiniM4_Pelican repository on GitHub, at the commit this page was made from: the board is PCB/Clock_MiniM4_Pelican.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Clock MiniM4 Pelican design in my own project?
Its repository states no licence, so its author keeps all rights: ask CedarGroveStudios before reusing the design.