AstroWeather
About the AstroWeather PCB
AstroWeather is an open source STM32 PCB design by jakubprzybytek, published on GitHub. It is a 6-layer board measuring 185 × 30 mm, with 113 components from 60 distinct parts.
Its main chip is the STM32G070CBT6, from the STM32 family. Other key parts include the INA180A2, ST67W611, AT24CS01-STUM, SCT2024CSSG and LFD028BUE-103A. By type, the board carries 35 resistors, 32 capacitors, 21 ICs, 10 transistors, 6 connectors and 5 diodes.
It belongs with the displays & leds designs in this gallery.
From the project
AstroWeather shows whether the coming nights are good for observing the sky. A serverless API combines astronomy (sunset, sunrise, sun and moon) with weather forecasts for a configured location and serves them as a compact text payload. A Wi-Fi host board fetches that payload eve
AstroWeather shows whether the coming nights are good for observing the sky. A serverless API combines astronomy (sunset, sunrise, sun and moon) with weather forecasts for a configured location and serves them as a compact text payload. A Wi-Fi host board fetches that payload every 6 hours and shows six observing nights on LED displays: its own and up to five chained display boards.
Main components on the AstroWeather
AstroWeather bill of materials (BOM)
113 components, 60 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | INA180A2 | SOT-23-5 | U101 |
| 1 | ST67W611 | ST67W611M1 | U201 |
| 1 | AT24CS01-STUM | SOT-23-5 | U301 |
| 1 | STM32G070CBT6 STM32G0B1CETx | LQFP-48_7x7mm_P0.5mm | U302 |
| 1 | SCT2024CSSG | SSOP-24_3.9x8.7mm_P0.635mm | U501 |
| 4 | LFD028BUE-103A | LFD028BUE-103A | U502, U504, U512, U514 |
| 4 | MCP6006T-E/OT | SOT-23-5 | U503, U507, U511, U515 |
| 2 | SCT2024CSSG SCT2024 | SSOP-24_3.9x8.7mm_P0.635mm | U505, U513 |
| 3 | LED Matrix 5x7 | FYM-7571A | U506, U508, U509 |
| 1 | SCT2167CSSG SCT2167 | SSOP-16_3.9x4.9mm_P0.635mm | U510 |
| 1 | TPS54202 TPS54302 | SOT-23-6 | U601 |
| 1 | MCP1825S | SOT-223-3_TabPin2 | U602 |
| 5 | SI2333DDS Si2333DDS | SOT-23 | Q501, Q502, Q503, Q504, Q505 |
| 4 | BC847 | SOT-23 | Q506, Q507, Q508, Q509 |
| 1 | Si2374DS | SOT-23 | Q701 |
| 1 | Crystal_GND24_Small | Crystal_SMD_Abracon_ABM3B-4Pin_5.0x3.2mm | Y301 |
| 1 | I2C | PinHeader_1x04_P2.54mm_Vertical | J101 |
| 1 | CONN_01X10 Conn_01x10 | PinSocket_1x10_P2.54mm_Horizontal | J102 |
| 1 | SWD | JST_PH_B6B-PH-K_1x06_P2.00mm_Vertical | J103 |
| 1 | CONN_01X10 Conn_01x10 | PinHeader_1x10_P2.54mm_Horizontal | J104 |
Show 40 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AUX_POWER | PinHeader_1x02_P2.54mm_Vertical | J105 |
| 1 | USB | USB_C_Receptacle_GCT_USB4216 | J106 |
| 2 | SW_Push | SW_Tactile_SPST_NO_Straight_CK_PTS636Sx25SMTRLFS | SW301, SW302 |
| 2 | D_TVS | D_SOD-323 | D101, D102 |
| 1 | LED1 | D_0805_2012Metric | D301 |
| 1 | LED2 | D_0805_2012Metric | D302 |
| 1 | 1.5V-2V (short) | D_SMA | D501 |
| 1 | 33U SRR6838-33u | L_Bourns_SRP7028A_7.3x6.6mm | L601 |
| 3 | 100N 100n | C_0603_1608Metric | C101, C301, C305 |
| 3 | 10u | C_0805_2012Metric | C201, C202, C203 |
| 1 | 100n | C_0805_2012Metric | C204 |
| 6 | 4U7 4u7 | C_0805_2012Metric | C302, C502, C505, C507, C509, C606 |
| 2 | 20p | C_0805_2012Metric | C303, C304 |
| 7 | 1u | C_0805_2012Metric | C306, C307, C501, C506, C508, C510, C607 |
| 2 | 100n | C_0603_1608Metric | C308, C309 |
| 1 | 10U 10u | C_0805_2012Metric | C503 |
| 1 | 10P 10p | C_0805_2012Metric | C504 |
| 1 | 100N 100n | C_0805_2012Metric | C601 |
| 1 | 10U/35V 10u/35V | C_0805_2012Metric | C602 |
| 1 | 100N/35V 100n/35V | C_0603_1608Metric | C603 |
| 2 | 22U 22u | C_1206_3216Metric | C604, C605 |
| 1 | 47P 47p | C_0805_2012Metric | C608 |
| 1 | 0.05 | R_1206_3216Metric | R101 |
| 2 | 5k1 | R_0805_2012Metric | R102, R103 |
| 1 | 33k | R_0805_2012Metric | R201 |
| 2 | dnp | R_0805_2012Metric | R301, R302 |
| 1 | x | R_0805_2012Metric | R303 |
| 2 | 100k | R_0805_2012Metric | R304, R305 |
| 4 | 10k | R_0603_1608Metric | R306, R307, R308, R309 |
| 2 | 2k2 | R_0805_2012Metric | R310, R311 |
| 4 | 10 | R_0805_2012Metric | R501, R505, R508, R511 |
| 5 | 1k | R_0805_2012Metric | R502, R503, R506, R509, R512 |
| 4 | 4K7 4k7 / 10k | R_0805_2012Metric | R504, R507, R510, R513 |
| 1 | 100K 100k | R_0805_2012Metric | R601 |
| 1 | 19K2 19k2 | R_0805_2012Metric | R602 |
| 1 | 4k7 | R_0805_2012Metric | R701 |
| 1 | 470k | R_0805_2012Metric | R702 |
| 1 | 4k-2M | R_LDR_4.9x4.2mm_P2.54mm_Vertical | R703 |
| 1 | 1k5 | R_0805_2012Metric | R704 |
| 1 | 3k2 | R_0805_2012Metric | R705 |
AstroWeather design files
The KiCad project lives in the jakubprzybytek/AstroWeather repository on GitHub; these links point at the commit this page was built from.
AstroWeather: common questions
What microcontroller does the AstroWeather use?
The AstroWeather is built around the STM32G070CBT6, from the STM32 family.
How big is the AstroWeather PCB?
The AstroWeather measures 185 × 30 mm, has 6 copper layers and is 1.5584 mm thick.
How many components are on the AstroWeather?
113 components, from 60 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 AstroWeather design files?
From the jakubprzybytek/AstroWeather repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the AstroWeather design in my own project?
The repository has no license, so all rights stay with jakubprzybytek. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the AstroWeather without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.
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