2 layers100 × 64.9 mm
2 layers31.8 × 61.6 mm
Rs423
sambazley/dso475USB interface for Gould DSO 475 oscilloscope
- Size
- 31.8 × 61.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 24
- Nets
- 34
- Pads
- 87
- Tracks, vias
- 128, 17
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20210824)
- Created
- 12 Oct 2021
- Updated
- 16 Oct 2021
Overview
Rs423 is an open-source printed circuit board by sambazley, from the sambazley/dso475 repository on GitHub, published under the Zlib licence. It is a 2-layer board of 31.8 × 61.6 mm with 24 parts on 34 nets, routed with 128 tracks and 17 vias.
It is built around the AP7335-WG and MMBTA06. Its parts include 9 resistors, 6 capacitors, 3 ICs, 3 connectors and 2 diodes. It belongs with the sensors and measurement and interfaces and adapters boards and the STM32 boards of this library.
Main components
2
AP7335-WG
SOT-25-40℃~+85℃@(Ta) 1 200mV@(300mA) 300mA 65dB@(1kHz) 800mV~5V 80uA 9V Adjustable Over Current Protection、Short Circuit Protection、Thermal Shutdown Positive SOT-25 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSDiodes IncorporatedVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
MMBTA06
SOT-23-55℃~+150℃ 1 NPN 100MHz 100nA 250mV 300mW 400 4V 500mA 80V NPN SOT-23 Bipolar (BJT) ROHSALJBipolar (BJT)
README
README.mdUSB Interface for Gould 475 Oscilloscope
PCB and software to interface a Gould 475 oscilloscope with a PC over USB.
The STM32 software interprets the HPGL that is output from the oscilloscope and converts it to SVG format. The SVG data is transmitted to dsoctl over USB.
Parts
24| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 1k | Resistor_SMD:R_0805_2012Metric | R1, R2, R5, R6, R7, R8 |
| 3 | 1u | Capacitor_SMD:C_0805_2012Metric | C1, C2, C3 |
| 2 | LED | LED_SMD:LED_0805_2012Metric | D1, D2 |
| 1 | 100n | Capacitor_SMD:C_0805_2012Metric | C5 |
| 1 | 10k | Resistor_SMD:R_0805_2012Metric | R9 |
| 1 | 10n | Capacitor_SMD:C_0805_2012Metric | C6 |
| 1 | 140817143300 | Package_DIP:SMDIP-4_W9.53mm | U1 |
| 1 | 15k | Resistor_SMD:R_0805_2012Metric | R3 |
| 1 | 4k7 | Resistor_SMD:R_0805_2012Metric | R4 |
| 1 | 4u7 | Capacitor_SMD:C_0805_2012Metric | C4 |
| 1 | AP7335 | Package_TO_SOT_SMD:SOT-23-5 | U2 |
| 1 | Conn_01x04 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J3 |
| 1 | DB9_Male | misc:A-DS 09 A_KG-T4S | J1 |
| 1 | MMBTA06 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | STM32F042F4Px | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U3 |
| 1 | USB_B | misc:UJ2-BH-TH | J2 |
Questions
How big is the Rs423 PCB?
It measures 31.8 × 61.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Rs423 use?
24 parts, built around the AP7335-WG and MMBTA06. 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 Rs423 KiCad files?
From the sambazley/dso475 repository on GitHub, at the commit this page was made from: the board is pcb/rs423.kicad_pcb and its schematic pcb/rs423.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Rs423 design in my own project?
Its repository publishes it under the Zlib 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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