2 layers
EVA86-2
roberto314/EVA-1_Reproduction
Recreation of the very rare K-K Systems EVA-1 Display Adapter for the Epson HX-20 Computer
86 parts
2 layers242.6 × 154.9 mm
My old project for IoT and automation 8 bit system
- Size
- 242.6 × 154.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 194
- Nets
- 165
- Pads
- 658
- Tracks, vias
- 2,282, 317
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 16 Aug 2021
- Updated
- 2 Nov 2021
Overview
Placa is an open-source printed circuit board by devfabiosilva, from the devfabiosilva/embeddedIoT repository on GitHub, published under the MIT licence. It is a 2-layer board of 242.6 × 154.9 mm with 194 parts on 165 nets, routed with 2,282 tracks and 317 vias.
It is built around the ATMEGA328-PU, 74LS373SC and 74LS139PC, with the 74HC04D, 74LS32SC and D12 among its other parts. Its parts include 64 resistors, 33 capacitors, 25 switches, 15 transistors and 13 diodes. It belongs with the home automation and IoT and retro computing and games boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
7
ATMEGA328-PU
PDIP-28-40℃~+85℃ 1.8V~5.5V 10bit 1KB 20MHz 23 2KB 32KB 8 Bit AVR Built-in FLASH PDIP-28 Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
74LS373SC
--55℃~+125℃ 1 2.6mA 24mA 38ns@5V,150pF 4.75V~5.25V 74LS 8 Output enable Tri-State - Buffers, Drivers, Receivers, Transceivers ROHSTexas InstrumentsBuffers, Drivers, Receivers, Transceivers
74LS139PC
PDIP-1622ns 74LS 8mA Decoder Single Supply PDIP-16 Signal Switches, Multiplexers, DecodersonsemiSignal Switches, Multiplexers, Decoders
74HC04D
SOP-14-40℃~+125℃ 1 1.5V~4.2V 1.9V、3.7V、5.2V 100mV、400mV、400mV 14ns@6V,50pF 2V~6V 2uA 5.2mA 5.2mA 500mV~1.8V 6 74HC SOIC-14 Inverters ROHSNexperiaInverters
74LS32SC
-- Logic Gates ROHSTexas InstrumentsLogic Gates
D12
SOD-123FLSchottky DiodesDIYI Elec TechD14
SOD-123F1A 40V 550mV@1A SOD-123F Schottky Diodes ROHSDIYI Elec TechSchottky Diodes
README
README.mdembeddedIoT
My old project for IoT and automation 8 bit system
Brief
This is my fisrt and old discontinued home embedded 8bit iot for control, monitoring and automation working 24/7 since 2014 open hardware
Details
- Hardware specification
- Project folder
- Last update 2014-04-01
TODO
- Firmware specification
- Project folder
- Last update 2015-07-01
- Uart for IoT using PySerial (Monitoring)
- Project folder
- RS232 protocol using PySerial
- Script type reads events RS232 -> USB -> TCP
- Commands using this reference for reading events pages: 32-35 TODO
Snapshots
Specifications
Export GERBER files
Installing AVR C (avr-gcc) and compiling firmware
Upload firmware
Running Python to read events from RS 232
License
- MIT
Parts
194| Qty | Value | Footprint | References |
|---|---|---|---|
| 60 | R | R3 | R1, R2, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23 +44 |
| 19 | C | C1 | C1, C3, C5, C6, C10, C11, C14, C15, C16, C17, C18, C19, C27, C31, C32, C33 +3 |
| 12 | NPN | TO92 | Q1, Q2, Q4, Q5, Q6, Q7, Q8, Q9, Q12, Q13, Q14, Q15 |
| 10 | CP1 | CP_5x11mm | C4, C12, C13, C23, C24, C25, C26, C28, C29, C30 |
| 6 | LED | LED-3MM | D4, D5, D8, D9, D10, D11 |
| 6 | LOGO | LOGO | , G***, G***, G***, G***, G*** |
| 4 | 74LS139 | DIP-16__300 | U1, U2, U5, U7 |
| 4 | Sup | suporte | suporte, suporte, suporte, suporte |
| 3 | 74LS373 | DIP-20__300 | U6, U9, U10 |
| 3 | DIODE | D3 | D1, D2, D3 |
| 3 | INDUCTOR | INDUCTOR_V | L1, L2, L3 |
| 3 | JUMPER | SIL-2 | JP1, JP2, JP3 |
| 3 | PNP | TO92 | Q3, Q10, Q11 |
| 2 | CP1 | CP_10x21mm | C20, C22 |
| 2 | CP1 | CP_10x16mm | C2, C21 |
| 2 | CRYSTAL | C2 | X1, X2 |
| 2 | DIODESCH | D6 | D6, D7 |
| 2 | FABIO_REGUL | DPAK5 | DPACK1, DPACK2 |
| 1 | +/- | SW_PUSH_SMALL | SW13 |
| 1 | . | SW_PUSH_SMALL | SW15 |
| 1 | 0 | SW_PUSH_SMALL | SW14 |
| 1 | 1 | SW_PUSH_SMALL | SW2 |
| 1 | 2 | SW_PUSH_SMALL | SW3 |
| 1 | 3 | SW_PUSH_SMALL | SW4 |
| 1 | 4 | SW_PUSH_SMALL | SW5 |
| 1 | 5 | SW_PUSH_SMALL | SW7 |
| 1 | 6 | SW_PUSH_SMALL | SW8 |
| 1 | 7 | SW_PUSH_SMALL | SW9 |
| 1 | 74HC04 | DIP-16__300 | U4 |
| 1 | 74LS32 | DIP-14__300 | U8 |
| 1 | 74LS32 | DIP-16__300 | U3 |
| 1 | 8 | SW_PUSH_SMALL | SW11 |
| 1 | 9 | SW_PUSH_SMALL | SW12 |
| 1 | ATMEGA328-P | DIP-28__300 | IC1 |
| 1 | BATTERY | CR2032H | BT1 |
| 1 | D12 | D3 | D3 |
| 1 | D13 | D3 | D3 |
| 1 | D14 | R1 | R1 |
| 1 | D15 | R1 | R1 |
| 1 | DIL8 | DIP-8__300 | P1 |
| 1 | FABIO_CON_3 | SIL-3 | J6 |
| 1 | MINHA_CONEXAO1 | SIL-10 | J5 |
| 1 | MINHA_CONEXAO2 | SIL-6 | J8 |
| 1 | MINHA_CONEXAO3 | SIL-7 | J9 |
| 1 | MINHA_CONEXAO4 | SIL-4 | J4 |
| 1 | MINHA_CONEXAO5 | SIL-5 | J2 |
| 1 | MINHA_CONEXAO6 | SIL-3 | J3 |
| 1 | MINHA_CONEXAO7 | SIL-3 | J1 |
| 1 | MISC_CONEXAO | SIL-9 | J7 |
| 1 | POT | RV2X4 | RV1 |
| 1 | R61 | R1 | R1 |
| 1 | R62 | R1 | R1 |
| 1 | RESET | SW_PUSH_SMALL | SW20 |
| 1 | SWITCH_INV | MICROSWITCH_SPST | SW1 |
| 1 | SWITCH_INVe | MICROSWITCH_SPST | SW25 |
| 1 | V*** | C1 | Cx |
| 1 | beep/on/off | SW_PUSH_SMALL | SW18 |
| 1 | down/- | SW_PUSH_SMALL | SW24 |
| 1 | entra | SW_PUSH_SMALL | SW23 |
| 1 | left/div | SW_PUSH_SMALL | SW21 |
| 1 | limpa | SW_PUSH_SMALL | SW16 |
| 1 | menu | SW_PUSH_SMALL | SW6 |
| 1 | mf | SW_PUSH_SMALL | SW17 |
| 1 | retorna | SW_PUSH_SMALL | SW10 |
| 1 | right/* | SW_PUSH_SMALL | SW22 |
| 1 | up/+ | SW_PUSH_SMALL | SW19 |
Questions
How big is the Placa PCB?
It measures 242.6 × 154.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Placa use?
194 parts, built around the ATMEGA328-PU, 74LS373SC, 74LS139PC and 74HC04D. 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 Placa KiCad files?
From the devfabiosilva/embeddedIoT repository on GitHub, at the commit this page was made from: the board is hardware/placa.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Placa 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).
Similar boards
- 4 layers260 × 260 mm
- 2 layers285.1 × 94.3 mm
- 2 layers140.4 × 111.9 mm
- 2 layers99.8 × 100.8 mm
- 4 layers100 × 43.3 mm
Pdp-11-colour
ashlin4010/pdp-11.40-mini-panel
Included in this repository are the PCB files to make a miniature PDP-11/40 front panel. The board uses a XIAO nrf52840 dev board. No software has been written yet.
96 parts2MIT - 2 layers
- 2 layers120 × 106 mm
