2 layers99.7 × 99.7 mm
2 layers91.4 × 53.3 mm
Clock
shimo8810/rust-boardHobby board implemented in Rust
- Size
- 91.4 × 53.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 53
- Nets
- 60
- Pads
- 192
- Tracks, vias
- 411, 34
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 22 Jun 2023
- Updated
- 14 Jul 2023
Overview
Clock is an open-source printed circuit board by shimo8810, from the shimo8810/rust-board repository on GitHub, published under the MIT licence. It is a 2-layer board of 91.4 × 53.3 mm with 53 parts on 60 nets, routed with 411 tracks and 34 vias.
It is built around the ATTINY2313-20PU, 74HC165D and 74HC595, with the 2SC1815 among its other parts. Its parts include 27 resistors, 8 switches, 5 capacitors, 5 transistors and 3 ICs. It belongs with the lEDs and displays boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
4
ATTINY2313-20PU
DIP-20-40℃~+85℃ 128Byte 128Byte 18 2.7V~5.5V 20MHz 2KB 8 Bit AVR Built-in FLASH DIP-20 Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
74HC165D
SO-16-40℃~+125℃ 1 28ns@6V,50pF 2V~6V 35MHz 500mW 74HC 8 Parallel or Serial to Serial SOIC-16 Shift Registers ROHSNexperiaShift Registers
74HC595
SOP-16-40℃~+85℃ 1 100ns@5V,50pF 10MHz 2V~6V 74HC 8 Serial-to-Serial or Parallel Tri-State SOP-16 Shift Registers ROHSGRShift Registers
2SC1815
SOT-23-55℃~+150℃ 1 NPN 100nA 130 150mA 200mW 250mV 50V 5V 80MHz NPN SOT-23 Bipolar (BJT) ROHShongjiachengBipolar (BJT)
README
README.mdRust Board
Purpose
This project is intended for my personal study and information sharing. The main objectives are as follows:
Practicing Electronics Circuit
Being a complete novice in circuit design, I created a simple hobby board for the purpose of studying circuit and PCB design.
Gathering Information on Embedded Rust
The knowledge of developing embedded systems using Rust are scattered, so I wanted to compile information for myself. While there is a wealth of development information available for well-known boards, there is limited knowledge on directly controlling microcontrollers.
Electronics Circuit
FirmWare
connection
In this project, I use FT232RL to write firmware to this board. The connection between FT232RL and the clock's ISP pins should be made according to the table below. Please note that the current version has a design flaw in the ISP pin layout, which deviates from the standard ISP pin configuration. It has become confusing and inconvenient due to this misleading and unfortunate design. Therefore, caution should be exercised.
| FT232RL | PIN |
|---|---|
| CTS | ISP_MISO |
| DCD | ISP_MOSI |
| DSR | ISP_SCK |
| RI | ISP_RESET |
| VCC | 5V |
| GND | GND |
writing
I use avrdude for writing the firmware. Writing can be performed with the following command. When writing for the first time, it is necessary to configure the fuse settings for attiny2313. Since we are running attiny2313 with an external oscillator (16MHz) and no prescaler, please write with the following settings.
avrdude -c diecimila \
-p t2313 \
-U flash:w:./target/avr-attiny2313/release/blink-attiny2313.elf:e \
-U lfuse:w:0xff:mParts
53| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R17, R18, R19, R20, R21, R22, R23, R24, R25 |
| 8 | 330 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2, R3, R4, R5, R6, R7, R8 |
| 8 | SW_Push | Button_Switch_THT:SW_PUSH_6mm_H5mm | SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9 |
| 5 | 10k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R9, R10, R11, R12, R26 |
| 5 | 2SC1815 | Package_TO_SOT_THT:TO-92_Inline | Q1, Q2, Q3, Q4, Q5 |
| 5 | 3.9k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R13, R14, R15, R16, R27 |
| 3 | 0.1u | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C1, C4, C5 |
| 2 | 22p | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C2, C3 |
| 1 | 16 MHz | Crystal:Crystal_HC18-U_Vertical | Y1 |
| 1 | 74HC165 | Package_DIP:DIP-16_W7.62mm | U3 |
| 1 | 74HC595 | Package_DIP:DIP-16_W7.62mm | U2 |
| 1 | ATtiny2313-20P | Package_DIP:DIP-20_W7.62mm | U1 |
| 1 | Barrel_Jack_Switch | Connector_BarrelJack:BarrelJack_Horizontal | J2 |
| 1 | Conn_02x03_Counter_Clockwise | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J1 |
| 1 | OSL40391-LRA | clock:OSL40391-LRA | D1 |
| 1 | Speaker | Buzzer_Beeper:Buzzer_TDK_PS1240P02BT_D12.2mm_H6.5mm | LS1 |
Questions
How big is the Clock PCB?
It measures 91.4 × 53.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Clock use?
53 parts, built around the ATTINY2313-20PU, 74HC165D, 74HC595 and 2SC1815. 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 Clock KiCad files?
From the shimo8810/rust-board repository on GitHub, at the commit this page was made from: the board is electronics/clock/clock.kicad_pcb and its schematic electronics/clock/clock.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Clock 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).
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Keyb
coprolitebbs/ps2-keyboard
Самодельная клавиатура с интерфейсом ps/2. Собрана на Attiny2313A и сдвиговых регистрах 74HC595 и 74HC165.
115 parts7GPL-3.0