2 layers87.9 × 55.4 mm
2 layers82.1 × 22.5 mm
Star pointer
dilshan/star-pointer24DIY virtual electronic finderscope for astronomical telescopes
- Size
- 82.1 × 22.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 39
- Nets
- 57
- Pads
- 156
- Tracks, vias
- 555, 21
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 15 Jan 2022
- Updated
- 25 Jun 2022
Overview
Star pointer is an open-source printed circuit board by dilshan, from the dilshan/star-pointer repository on GitHub, published under the MIT licence. It is a 2-layer board of 82.1 × 22.5 mm with 39 parts on 57 nets, routed with 555 tracks and 21 vias.
It is built around the STM32F103C8T6, RT9193-33GB and USBLC6-2SC6, with the XM7D-0512 among its other parts. Its parts include 16 capacitors, 8 resistors, 3 ICs, 3 connectors and 2 crystals. It belongs with the sensors and measurement and computers and single-board computers boards and the STM32 boards of this library.
Main components
4
STM32F103C8T6
LQFP-48(7x7)-40℃~+85℃ 12bit 20KB 2V~3.6V 32 Bit 37 64KB 72MHz ARM Cortex-M3 Built-in FLASH LQFP-48(7x7) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
RT9193-33GB
SOT-23-5-40℃~+125℃@(Tj) -50dB@(10kHz) 1 100uVrms 220mV@(300mA) 3.3V 300mA 5.5V 90uA Fixed Over Current Protection、Over Temperature Protection、Enable Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSRICHTEKVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
USBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)XM7D-0512
插件插件 USB Connectors ROHSOmronUSB Connectors
README
README.mdStarPointer - Electronic Finderscope
StarPointer is a virtual electronic finderscope for astronomical telescopes. This device works with Stellarium and helps the observer identify objects in the sky.
This sensor kit builds around the STM32F103C8 microcontroller, ADXL345 3-axis accelerometer, and HMC5883L 3-axis magnetometer. It communicates with the PC using the inbuilt USB peripheral of the STM32F103C8 microcontroller.
StarPointer is an open-source project. This repository has all the schematics, PCB design files, firmware source codes, and application source codes.
The complete documentation of this project is in the wiki section of this repository. The PCB Gerber files and compiled binaries are also available in the release section of this repository. The PCB of the StarPointer can also order from the PCBWay website.
All the content of this project is distributed under the terms of the following license:
- Hardware License: CERN-OHL-W 2.0
- Software License: MIT
- Documentation License: CC BY 4.0
Parts
39| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 0.1MFD | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C5, C6, C7, C8, C9, C10, C11, C14, C15 |
| 2 | 100K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2, R3 |
| 2 | 15pF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3, C4 |
| 2 | 1MFD | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C13, C16 |
| 2 | 22R | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R7, R8 |
| 2 | 22pF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2 |
| 1 | 0.01MFD | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C12 |
| 1 | 1.5K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R6 |
| 1 | 10K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4 |
| 1 | 1M | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1 |
| 1 | 2.54mm Header | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J2 |
| 1 | 2.54mm Header | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J1 |
| 1 | 2773001112 | Inductor_THT:L_Axial_L5.0mm_D3.6mm_P10.00mm_Horizontal_Murata_BL01RN1A2A2 | FB1 |
| 1 | 32.768kHz | Crystal:Crystal_AT310_D3.0mm_L10.0mm_Horizontal_1EP_style1 | Y1 |
| 1 | 680R | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R5 |
| 1 | 8.00MHz | Crystal:Crystal_HC49-U_Vertical | Y2 |
| 1 | ADXL345 MODULE | starpointer:ADXL345 MODULE | M1 |
| 1 | CR1220 HOLDER | starpointer:MPD_BC501SM-TR | BT1 |
| 1 | HMC5883L MODULE | starpointer:HMC5883L MODULE | M2 |
| 1 | LOGO | starpointer:pcbway-logo-5mm | G*** |
| 1 | PCB JUMPER | Jumper:SolderJumper-2_P1.3mm_Open_Pad1.0x1.5mm | JP1 |
| 1 | RED LED | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1 |
| 1 | RT9193-33GB | Package_TO_SOT_SMD:SOT-23-5_HandSoldering | U3 |
| 1 | STM32F103C8T6 | Package_QFP:LQFP-48_7x7mm_P0.5mm | U1 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U2 |
| 1 | XM7D-0512 | starpointer:OMRON_XM7D-0512 | J3 |
Questions
How big is the Star pointer PCB?
It measures 82.1 × 22.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Star pointer use?
39 parts, built around the STM32F103C8T6, RT9193-33GB, USBLC6-2SC6 and XM7D-0512. 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 Star pointer KiCad files?
From the dilshan/star-pointer repository on GitHub, at the commit this page was made from: the board is design/starpointer/starpointer.kicad_pcb and its schematic design/starpointer/starpointer.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Star pointer design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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