Celeste
About the Celeste PCB
Celeste is an open source AVR/Arduino PCB design by wyolum, published on GitHub under the MIT license. It is a 2-layer board measuring 80 × 80 mm, with 45 components from 30 distinct parts.
Its main chip is the ATMEGA328P, from the AVR/Arduino family. Other key parts include the Hall_Sensor, MCP1700T-3302E/TT, DS3231N and ADXL345. By type, the board carries 14 capacitors, 12 connectors, 5 ICs, 5 resistors, 1 crystal and 1 battery holder.
From the project
decorative celestial clock
[CERN Open Hardware Licence v1.2 ]:http://www.ohwr.org/attachments/2388/cernohlv12.txt
Main components on the Celeste
Celeste bill of materials (BOM)
45 components, 30 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ATMEGA328P | TQFP32 | U1 |
| 1 | Hall_Sensor | SOT23-3 | U2 |
| 1 | MCP1700T-3302E/TT 3V3 | SOT23-3 | U3 |
| 1 | DS3231N | DS3231 | U4 |
| 1 | ADXL345 | ADXL345 | U5 |
| 1 | 8MHZ 8MHz | Xtal_SMD4 | X1 |
| 1 | ISP | Header_ISP | P1 |
| 1 | FTDI | Header_FTDI | P2 |
| 1 | SW_EXT | Pin_Header_Straight_1x03 | P3 |
| 1 | Motor | Pin_Header_Straight_1x04 | P5 |
| 1 | Motor_R | Pin_Header_Straight_1x08 | P6 |
| 1 | Motor_L | Pin_Header_Straight_1x08 | P7 |
| 3 | IO | IO | P8, P9, P10 |
| 1 | GPS | Pin_Header_Straight_1x09 | P11 |
| 1 | 3V3_IN 3V3_In | Pin_Header_Straight_1x02 | P12 |
| 1 | WallW | BARREL_JACK | P13 |
| 4 | IO | IO | B1, B2, B3, B4 |
| 1 | BU2032SM-HD-G Batt_RTC | CR2032 | BT1 |
| 1 | SD_CARD_Micro | SD_Micro | SD1 |
| 1 | RST | Switch_SMT | SW1 |
Show 10 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | WS2812B | RGB_WS2811B | LED1 |
| 2 | 22P 22p | c_0805 | C1, C2 |
| 5 | 100N 100n | c_0805 | C3, C4, C5, C9, C10 |
| 2 | 1u | c_0805 | C6, C7 |
| 1 | 47UF_25V 47uF_25V | C_ELCO_SMD | C8 |
| 1 | 10UF 10uF | C_ELCO_SMD | C11 |
| 2 | 100NF 100nF | c_0805 | C12, C13 |
| 1 | 100n | c_0805 | C14 |
| 4 | 10K 10k | r_0805 | R1, R2, R3, R10 |
| 1 | 750E | r_0805 | R4 |
Celeste design files
The KiCad project lives in the wyolum/Celeste repository on GitHub; these links point at the commit this page was built from.
Celeste: common questions
What microcontroller does the Celeste use?
The Celeste is built around the ATMEGA328P, from the AVR/Arduino family.
How big is the Celeste PCB?
The Celeste measures 80 × 80 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Celeste?
45 components, from 30 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Celeste design files?
From the wyolum/Celeste repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Celeste design in my own project?
Yes, under the terms of its MIT license, which wyolum chose for the repository.
Can I test firmware for the Celeste without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.
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