2 layers
Halfduplextranslator
AM1k21/ESP32-CRSF-Relay
Project for extension of communication range of a ELRS radio, a CRSF Relay node, that using a elrs receiver, elrs transmitter and ESP32 forwards CRSF frames.
4 partsMIT
2 layers56.5 × 64.8 mm
ComputationalPrototype
UCHIC/CIWS-WM-Node1Hardware and software for a smart water meter computational node
- Size
- 56.5 × 64.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 57
- Nets
- 92
- Pads
- 268
- Tracks, vias
- 477, 26
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 3 Nov 2019
- Updated
- 28 Jun 2021
Overview
ComputationalPrototype is an open-source printed circuit board by UCHIC, from the UCHIC/CIWS-WM-Node repository on GitHub, published under the BSD-3-Clause licence. It is a 2-layer board of 56.5 × 64.8 mm with 57 parts on 92 nets, routed with 477 tracks and 26 vias.
It is built around the ATMEGA328P-AU, SN74HC125DR(LX) and TSR 1-2450, with the FT232RL, 25LC1024-E/SM and 151031VS06000 among its other parts. Its parts include 17 capacitors, 15 resistors, 9 ICs, 5 connectors and 3 diodes. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
11
ATMEGA328P-AU
TQFP-32(7x7)-40℃~+85℃ 1.8V~5.5V 10bit 1KB 20MHz 23 2KB 32KB 8 Bit AVR Built-in FLASH TQFP-32(7x7) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
SN74HC125DR(LX)
SOP-14Buffers, Drivers, Receivers, Transceiverslingxingic
TSR 1-2450
SIP,11.6x7.5mm-40℃~+85℃ 10.2mm 11.6mm 1A 2200uF 300uA 50mVp-p 5V 7.5mm 7V~36V 850kHz 94% Short Circuit Protection、Automatic fault recovery ±1% SIP,11.6x7.5mm DC-DC Power Modules ROHSYLPTECDC-DC Power Modules
FT232RL
SSOP-28-208mil-40℃~+85℃ 3.3V~5.25V、4V~5.25V USB 2.0 USB to UART SSOP-28-208mil USB Converters ROHSFTDIUSB Converters
25LC1024-E/SM
SOIJ-8-5.28mm-40℃~+125℃ 1,000,000 cycles 1Mbit 2.5V~5.5V 200 Years 20MHz 6ms Hardware write protection function、Built-in power-on reset (POR)、Built-in write enable latch (WEL)、Power-down/Power-up protection circuit SPI SOIJ-8-5.28mm EEPROM ROHSMicrochip TechnologyEEPROM
151031VS06000
插件,D=3mm-40℃~+85℃ 2.2V~2.6V 3mm Round Lens 560nm 568nm 60° 78mW 9mcd~30mcd Discrete Diode Emerald Green 插件,D=3mm LED Indication - Discrete ROHSWürth ElektronikLED Indication - Discrete
PTS645SL432LFS
插件12V 4.3mm 50mA 6mm 6mm Round Button SPST Through Hole 插件 Tactile Switches ROHSC&KTactile Switches
F90800021
SMD5032-2P-40℃~+85℃ 100Ω 18pF 8MHz ±20ppm ±30ppm SMD5032-2P Crystals ROHSDiodes IncorporatedCrystals
FQP27P06
TO-220-55℃~+175℃ 1 P-Channel 1.4nF 120W 27A 43nC@10V 4V 60V 70mΩ@10V TO-220 MOSFETs ROHSonsemiMOSFETs
LFXTAL050789REEL
SMD2012-2P-40℃~+85℃ 12.5pF 32.768kHz 90kΩ ±20ppm SMD2012-2P Crystals ROHSIQDCrystalsSNT-100-YW-T
P=2.54mm2.54mm 4.3A Open-Top P=2.54mm Shunts, Jumpers ROHSSamtecShunts, Jumpers
README
Hardware/PCB_Design/README.mdManufacturing
This folder contains all the files necessary for manufacturing a printed circuit board (PCB) version of the CIWS-WM-Node. The PCB contains everything needed to interface with a Raspberry Pi computer and magnetometer sensor to collect and process data.
The .pro and .sch files are the board layout and schematic respectively. Use these two files with the .kicad_pcb file to view the design in kicad.
The .csv file and .zip files are used for manufaturing the devices. The .zip file contains the drill file, gerber files, assembly drawings, and position files. The .csv is a list of components used on the device.
Instructions for setting up the PCB After Manufacture
- Remove the jumper on the
EEPROM Powerpins. - Connect the micro usb port on the PCB to your computer using a USB cable and turn the
PWRswitch on the PCB ON. - Connect your computer to the 6 header pins on the PCB with an AVR in-system programmer (ISP). Make sure to plug in the ribbon cable the right direction. A suitable AVR ISP is referenced in the link below.
- Open up the code in the
Firmwaredirectory from this repository using the Arduino IDE and click onTools. SelectArduino Pro or Pro minias the board,Atmega328P (3.3V 8MHZ)as the processor, andAVR ISPas the programmer. - While still in the Arduino IDE, click
Burn Bootloader. Wait for it to finish. - Unplug the AVR ISP from the PCB and turn the
PGRMswitch on the PCB ON. - In the
Toolsmenu of the Arduino IDE, select the serial port connected to the micro usb port. If you are unsure which one is correct you can unplug the USB cable and see which one disappears. Reconnect the USB cable and select that one. - In the Arduino IDE, click
Upload. This unploads the code onto the ATMEGA328P chip. - Turn the
PWRandPRGMswitches off on the PCB. - Put the jumper back on the
EEPROM Powerpins on the PCB.
Once these steps are complete, the PCB is ready to be snapped onto the header of a Raspberry Pi for use.
A suitable AVR ISP: https://www.pololu.com/product/3172
Parts
57| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R2, R3, R4, R5, R6, R7, R11 |
| 6 | 0.1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C2, C5, C8, C9, C11, C13 |
| 5 | 1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C1, C3, C14, C15, C16 |
| 3 | 10uF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C10, C12, C17 |
| 3 | 151031VS06000 | LED_THT:LED_D3.0mm_Clear | D1, D2, D3 |
| 2 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R8, R9 |
| 2 | 20pF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C6, C7 |
| 2 | 470 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R1, R10 |
| 2 | 5k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R14, R15 |
| 2 | PTS645SL432LFS | Button_Switch_THT:SW_PUSH_6mm | SW1, SW2 |
| 1 | 100uF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C4 |
| 1 | 1072 | SamacSys_Parts:1072 | IC2 |
| 1 | 13k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R13 |
| 1 | 1725656 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MPT-0,5-2-2.54_1x02_P2.54mm_Horizontal | J2 |
| 1 | 1725685 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MPT-0,5-5-2.54_1x05_P2.54mm_Horizontal | J3 |
| 1 | 1825057-1 | Button_Switch_THT:SW_DIP_SPSTx02_Slide_9.78x7.26mm_W7.62mm_P2.54mm | SW3 |
| 1 | 25LC1024-E/SM | Package_SO:SOIJ-8_5.3x5.3mm_P1.27mm | U4 |
| 1 | 2N3904 | Package_TO_SOT_THT:TO-92_Inline | Q2 |
| 1 | 2k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R12 |
| 1 | ATmega328P-AU | Package_QFP:TQFP-32_7x7mm_P0.8mm | U2 |
| 1 | F90800021 | Crystal:Crystal_SMD_Abracon_ABM3-2Pin_5.0x3.2mm | Y1 |
| 1 | FQP27P06 | Package_TO_SOT_THT:TO-220-3_Vertical | Q1 |
| 1 | FT232RL | Package_SO:SSOP-28_5.3x10.2mm_P0.65mm | U3 |
| 1 | LFXTAL050789REEL | Crystal:Crystal_SMD_2012-2Pin_2.0x1.2mm_HandSoldering | Y2 |
| 1 | MCP1703AT-3302E/CB | Package_TO_SOT_SMD:SOT-23_Handsoldering | U1 |
| 1 | MCP3421A0T-ECH | Microchip:MCP3425 | U7 |
| 1 | PCF8523T_1,118 | SamacSys_Parts:SOIC127P600X175-8N | IC1 |
| 1 | PinHeader_2x03_P2.54mm_Vertical | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J5 |
| 1 | PinSocket_2x20_P2.54mm_Vertical | Connector_PinSocket_2.54mm:PinSocket_2x20_P2.54mm_Vertical | J1 |
| 1 | SN74HC125DR | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U5 |
| 1 | SNT-100-YW-T | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP1 |
| 1 | TSR_1-2450 | Converter_DCDC:Converter_DCDC_TRACO_TSR-1_THT | U6 |
| 1 | USB_B_Micro | Connector_USB:USB_Micro-B_Molex-105017-0001 | J4 |
Questions
How big is the ComputationalPrototype PCB?
It measures 56.5 × 64.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the ComputationalPrototype use?
57 parts, built around the ATMEGA328P-AU, SN74HC125DR(LX), TSR 1-2450 and FT232RL. 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 ComputationalPrototype KiCad files?
From the UCHIC/CIWS-WM-Node repository on GitHub, at the commit this page was made from: the board is Hardware/PCB_Design/ComputationalPrototype.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the ComputationalPrototype design in my own project?
Its repository publishes it under the BSD-3-Clause licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
Similar boards
- 2 layers40.6 × 61 mm
- 2 layers69.9 × 120.5 mm
- 2 layers95.5 × 61 mm
Precharge
sebgothard/FS_Electronics
Projects for Formula Student UK competition 2024-25.
44 parts2GPL-3.0 - 2 layers147.3 × 83.8 mm
- 2 layers75 × 50 mm
SlidersOfSociety PCB
OE1KHZ/SlidersOfSociety-PCB
A CANbus controlled closed loop motor fader module based on Microchip's PIC18F25K83
26 partsMIT - 2 layers84.8 × 88.1 mm
- 2 layers50 × 67 mm
