2 layers33.7 × 97.8 mm
HAN ESP TSS721
UtilitechAS/amsreader-firmware
ESP8266 and ESP32 compatible firmware to read, interpret and publish data to MQTT from smart electrical meters, both DLMS and DSMR is supported
29 parts470
2 layers55.6 × 46.9 mm
- Size
- 55.6 × 46.9 mm
- Copper layers
- 2
- Thickness
- 0.57 mm
- Parts
- 82
- Nets
- 110
- Pads
- 313
- Tracks, vias
- 592, 126
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 13 Oct 2021
- Updated
- 7 Oct 2022
Overview
First is an open-source printed circuit board by RadoslawSajdak, from the RadoslawSajdak/UART_USB_PCB repository on GitHub. It is a 2-layer board of 55.6 × 46.9 mm with 82 parts on 110 nets, routed with 592 tracks and 126 vias.
It is built around the TUSB2046IBVFR and LM1117-3.3. Its parts include 33 resistors, 22 capacitors, 10 diodes, 6 ICs and 5 connectors.
Main components
2
TUSB2046IBVFR
LQFP-32(7x7)-40℃~+85℃ 12Mbps 1uA 3.3V~3.6V 4 40mA Hub LQFP-32(7x7) USB HUB Controllers ROHSTexas InstrumentsUSB Converters
LM1117-3.3
SOT-2231 1.3V@(1000mA) 15V 1A 2mA 3.3V Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHShongjiachengUncategorised
README
README.mdCrystals.pretty
Crystal footprints
Parts
82| Qty | Value | Footprint | References |
|---|---|---|---|
| 14 | 22p | Capacitor_SMD:C_0603_1608Metric | C1, C3, C4, C5, C6, C7, C8, C10, C11, C17, C18, C19, C20, C22 |
| 10 | 27 | Resistor_SMD:R_0603_1608Metric | R2, R4, R5, R6, R10, R11, R14, R15, R17, R19 |
| 10 | LED | LED_SMD:LED_0805_2012Metric | D1, D2, D3, D4, D5, D6, D7, D8, D9, D10 |
| 8 | 15k | Resistor_SMD:R_0603_1608Metric | R1, R3, R8, R9, R12, R13, R16, R18 |
| 4 | 10k | Resistor_SMD:R_0603_1608Metric | R21, R29, R30, R33 |
| 4 | 1k | Resistor_SMD:R_0603_1608Metric | R26, R27, R28, R32 |
| 4 | 300 | Resistor_SMD:R_0603_1608Metric | R22, R23, R24, R31 |
| 4 | 4.7u | Capacitor_SMD:C_0603_1608Metric | C14, C15, C16, C21 |
| 4 | CP2102N-DEV0 | CP2102:QFN50P400X400X80-25N | U1, U3, U4, U6 |
| 4 | SolderJumper_2_Bridged | Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm | 5V_ON, JP1, JP2, JP3 |
| 2 | 10u | Capacitor_SMD:C_0603_1608Metric | C2, C9 |
| 2 | 20p | Capacitor_SMD:C_0603_1608Metric | C12, C13 |
| 2 | 470 | Resistor_SMD:R_0603_1608Metric | R20, R25 |
| 1 | 1.5k | Resistor_SMD:R_0603_1608Metric | R7 |
| 1 | HC49SDLF-6.00MHz | HC49:HC49SDLF800MHz | Y1 |
| 1 | LM1117-3.3 | Package_TO_SOT_SMD:SOT-223 | U5 |
| 1 | LOGO | LOGO | G*** |
| 1 | TUSB2046IBVFR | TUSB2046:TUSB2046IBVFR | U2 |
| 1 | UART0 | Connector_PinSocket_2.54mm:PinSocket_1x06_P2.54mm_Vertical | J1 |
| 1 | UART1 | Connector_PinSocket_2.54mm:PinSocket_1x06_P2.54mm_Vertical | J2 |
| 1 | UART2 | Connector_PinSocket_2.54mm:PinSocket_1x06_P2.54mm_Vertical | J4 |
| 1 | UART3 | Connector_PinSocket_2.54mm:PinSocket_1x06_P2.54mm_Vertical | J5 |
| 1 | USB_B_Micro | Connector_USB:USB_Micro-B_Molex-105017-0001 | J3 |
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Questions
How big is the First PCB?
It measures 55.6 × 46.9 mm and has 2 copper layers, 0.57 mm thick.
What parts does the First use?
82 parts, built around the TUSB2046IBVFR and LM1117-3.3. 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 First KiCad files?
From the RadoslawSajdak/UART_USB_PCB repository on GitHub, at the commit this page was made from: the board is First.kicad_pcb and its schematic First.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the First design in my own project?
Its repository states no licence, so its author keeps all rights: ask RadoslawSajdak before reusing the design.