2 layers74.4 × 84.7 mm
2 layers52.4 × 78.4 mm
OptoCounter
synthetic65535/OptoCounterЭлектронный счетчик импульсов
- Size
- 52.4 × 78.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 51
- Nets
- 55
- Pads
- 177
- Tracks, vias
- 341, 3
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 24 Jun 2018
- Updated
- 16 Sep 2020
Overview
OptoCounter is an open-source printed circuit board by synthetic65535, from the synthetic65535/OptoCounter repository on GitHub. It is a 2-layer board of 52.4 × 78.4 mm with 51 parts on 55 nets, routed with 341 tracks and 3 vias.
It is built around the ATMEGA8A-PU, LM358N and BC56-12SRWA, with the 1N4734A among its other parts. Its parts include 27 resistors, 8 capacitors, 4 diodes, 3 ICs and 3 transistors. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
4
ATMEGA8A-PU
DIP-28-300mil-40℃~+85℃ 10bit 16MHz 1KB 2.7V~5.5V 23 512Byte 8 Bit 8KB AVR Built-in FLASH DIP-28-300mil Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
LM358N
DIP-8-18V~18V 0℃~+70℃ 1.2MHz 10nA 2 30mA 3V~36V 50nA 7mV 800uA 80dB Built-in compensation DIP-8 Operational Amplifier ROHSHGSEMIOperational Amplifier
BC56-12SRWA
DIP-120.56 3 37.6mmx19mmx8.1mm 7 Segment 75mW Common Cathode Red DIP-12 LED Segment Displays ROHSKingbrightLED Segment Displays
1N4734A
DO-41-65℃~+200℃ 1 Independent 10uA 1W 5.32V~5.85V 5.6V 5Ω DO-41 Zener Diodes ROHSonsemiZener Diodes
README
readme.mdOptoCounter
Электронный счетчик импульсов.
- Используемый микроконтроллер: atmega8
- Среда разработки: KiCad
- Прошивка для микроконтроллера: Здесь
Отличительные особенности счетчика:
- Возможность использовать самые разнообразные датчики, изменяющие во время работы свою проводимость: фоторезисторы, фототранзисторы, микрофоны...
- Аппаратный фильтр, заглушающий помехи от 50 герц и выше
- Аппаратный дифференциатор + компаратор с гистерезисом. При необходимости можно сделать подстройку схемы под конкретный датчик не изменяя прошивку микроконтроллера. Микроконтроллер не занимается фильтрацией сигнала, ему на вход подаются уже готовые прямоугольные импульсы, которые он считает.
- Отсутствие SMD деталей
- Питание от USB
Parts
51| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 470 | MyFootprints:RES | R1, R15, R16, R17, R18, R19, R20, R21, R22 |
| 7 | 1k | MyFootprints:RES | R2, R11, R14, R24, R26, R27, R28 |
| 6 | 10k | MyFootprints:RES | R3, R5, R7, R9, R12, R13 |
| 3 | 0.1uF | MyFootprints:CAP | C2, C3, C4 |
| 3 | Q_NPN_BCE | MyFootprints:Q_BCE | Q1, Q2, Q3 |
| 2 | 22k | MyFootprints:RES | R4, R8 |
| 2 | 22pF | MyFootprints:CAP | C5, C6 |
| 2 | 330uF | Capacitors_THT:CP_Radial_D6.3mm_P2.50mm | C7, C8 |
| 2 | TVS | MyFootprints:DO-41 | D1, D2 |
| 1 | 10 | MyFootprints:RES | R23 |
| 1 | 100k | MyFootprints:RES | R10 |
| 1 | 1M | MyFootprints:RES | R6 |
| 1 | 1N4007 | MyFootprints:DO-41 | D3 |
| 1 | 1N4734A | MyFootprints:DO-41 | D4 |
| 1 | 4.7-10uF | MyFootprints:CAP | C1 |
| 1 | 8Mhz | Crystals:Crystal_HC49-4H_Vertical | Y1 |
| 1 | ATMEGA8A-PU | MyFootprints:TRS-28_Connfly | U2 |
| 1 | BC56-12SRWA | MyFootprints:BC56-12SRWA | U3 |
| 1 | LM358N | Housings_DIP:DIP-8_W7.62mm_Socket | U1 |
| 1 | MSW-11 | MyFootprints:SM5-00N-115 | SW1 |
| 1 | PLD-6 | MyFootprints:AVR_ISP | J2 |
| 1 | RS-212 | MyFootprints:RS212 | J1 |
| 1 | USBB-1J | MyFootprints:USB_B | J3 |
The 50 most common of 51 parts.
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Questions
How big is the OptoCounter PCB?
It measures 52.4 × 78.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the OptoCounter use?
51 parts, built around the ATMEGA8A-PU, LM358N, BC56-12SRWA and 1N4734A. 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 OptoCounter KiCad files?
From the synthetic65535/OptoCounter repository on GitHub, at the commit this page was made from: the board is OptoCounter.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the OptoCounter design in my own project?
Its repository states no licence, so its author keeps all rights: ask synthetic65535 before reusing the design.