2 layers100 × 100 mm
2 layers149.5 × 43.8 mm
Usb external monitor
dilshan/usb-external-display16USB 10 digit seven segment display unit
- Size
- 149.5 × 43.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 71
- Nets
- 68
- Pads
- 281
- Tracks, vias
- 1,022, 155
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 29 Jun 2019
- Updated
- 8 Jul 2019
Overview
Usb external monitor is an open-source printed circuit board by dilshan, from the dilshan/usb-external-display repository on GitHub, published under the MIT licence. It is a 2-layer board of 149.5 × 43.8 mm with 71 parts on 68 nets, routed with 1,022 tracks and 155 vias.
It is built around the STM32F103CBT6, AMS1117-3.3 and MMBT3904. Its parts include 25 resistors, 12 ICs, 11 transistors, 9 capacitors and 3 connectors. It belongs with the lEDs and displays boards and the STM32 boards of this library.
Main components
3
STM32F103CBT6
LQFP-48(7x7)-40℃~+85℃ 128KB 12bit 20KB 2V~3.6V 32 Bit 37 72MHz ARM Cortex-M3 Built-in FLASH LQFP-48(7x7) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
MMBT3904
SOT-23-55℃~+150℃ 1 NPN 100 100nA 200mA 200mW 300MHz 300mV 40V 6V NPN SOT-23 Bipolar (BJT) ROHSJiangsu Changjing Electronics Technology (CJ)Bipolar (BJT)
README
README.mdUSB seven segment display module
This seven segment display module is specifically designed to work with POS systems and banking applications. Initially, this module is developed to work with PC based systems, and later it was modified to work with other platforms and applications.
To simplify the communication interface this unit emulates a COM port in the host terminal. Because of this feature, this module can work with many systems without having any additional device driver(s).
This display module is designed around STM32F103CB MCU. The firmware of this display unit operates with most of the STM32F103C series MCUs, which including STM32F103C8T6 based Blue Pill board.
This is certified open source hardware project. All the design files, documentation, firmware source code are available to download at the project source repository. All the content of this project are distributed under the terms of the following license:
Parts
71| Qty | Value | Footprint | References |
|---|---|---|---|
| 13 | 10K | Resistor_SMD:R_0805_2012Metric | R1, R4, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25 |
| 11 | MMBT3904 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, Q10, Q11 |
| 10 | LTS-6780R | Display_7Segment:7SegmentLED_LTS6760_LTS6780 | U2, U3, U4, U5, U6, U7, U8, U9, U10, U11 |
| 8 | 100R | Resistor_SMD:R_0805_2012Metric | R5, R6, R7, R8, R9, R10, R11, R12 |
| 5 | 0.1MFD | Capacitor_SMD:C_0805_2012Metric | C5, C6, C7, C8, C9 |
| 4 | MountingHole_3.2mm_M3 | MountingHole:MountingHole_3.2mm_M3 | , , , |
| 2 | 100K | Resistor_SMD:R_0805_2012Metric | R13, R14 |
| 2 | 100pF | Capacitor_SMD:C_0805_2012Metric | C1, C2 |
| 2 | 22R | Resistor_SMD:R_0805_2012Metric | R2, R3 |
| 2 | 22pF | Capacitor_SMD:C_0805_2012Metric | C3, C4 |
| 1 | 32.768kHz | Crystal:Crystal_C26-LF_D2.1mm_L6.5mm_Horizontal | Y1 |
| 1 | 3V BAT | Battery:BatteryHolder_Keystone_105_1x2430 | BT1 |
| 1 | 8.00MHz | Crystal:Crystal_HC49-U_Vertical | Y2 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U12 |
| 1 | BEAD | Inductor_THT:L_Axial_L5.0mm_D3.6mm_P10.00mm_Horizontal_Murata_BL01RN1A2A2 | FB1 |
| 1 | Buzzer | Buzzer_Beeper:Buzzer_12x9.5RM7.6 | BZ1 |
| 1 | EX. MODE | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J3 |
| 1 | ISP | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J2 |
| 1 | RESET | Jumper:SolderJumper-2_P1.3mm_Open_Pad1.0x1.5mm | SW1 |
| 1 | STM32F103CBT6 | Package_QFP:LQFP-48_7x7mm_P0.5mm | U1 |
| 1 | USB | Connector_USB:USB_B_TE_5787834_Vertical | J1 |
The 70 most common of 71 parts.
Questions
How big is the Usb external monitor PCB?
It measures 149.5 × 43.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Usb external monitor use?
71 parts, built around the STM32F103CBT6, AMS1117-3.3 and MMBT3904. 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 Usb external monitor KiCad files?
From the dilshan/usb-external-display repository on GitHub, at the commit this page was made from: the board is design/usb-external-monitor.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Usb external monitor 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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