2 layers249.3 × 118.8 mm
Electrical design hvac v2
salvatore999uwo/mini_hvac_v2
Second version of the temperature control system for a small model room.
71 parts
2 layers40.6 × 49.5 mm
KeyboardController
gcoonrod/ps2-parallelPS/2 to Parallel Breakout Board
- Size
- 40.6 × 49.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 12
- Nets
- 33
- Pads
- 81
- Tracks, vias
- 113, 5
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 30 Mar 2023
- Updated
- 1 Apr 2023
Overview
KeyboardController is an open-source printed circuit board by gcoonrod, from the gcoonrod/ps2-parallel repository on GitHub. It is a 2-layer board of 40.6 × 49.5 mm with 12 parts on 33 nets, routed with 113 tracks and 5 vias.
It is built around the ATTINY461A-PU, 74HC164 and ECS-080-20-4X-DU, with the KMDGX-6S-BS among its other parts. Its parts include 5 capacitors, 4 connectors, 2 ICs and 1 crystal. It belongs with the interfaces and adapters boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
4
ATTINY461A-PU
PDIP-20-40℃~+85℃ 1.8V~5.5V 10bit 16 20MHz 256Byte 256Byte 4KB 8 Bit AVR Built-in FLASH Power-on reset (POR)、Undervoltage detection (BOR/LVD/LVR/LVI)、Watchdog reset、Built-in general-purpose timer、Programmable watchdog、Built-in temperature sensor、Touch function PDIP-20 Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
74HC164
SOP-140℃~+70℃ 1 24ns@5V,16pF 2V~6V 74HC 8 Serial-to-Parallel SOP-14 Shift Registers ROHSGRShift Registers
ECS-080-20-4X-DU
HC-49S-55℃~+125℃ 20pF 80Ω 8MHz ±100ppm ±30ppm HC-49S Crystals ROHSECSCrystals
KMDGX-6S-BS
插件-25℃~+80℃ 12V 2A 6P Bent tip Copper alloy Female Gold 插件 Circular Connectors & Cable Connectors ROHSKyconCircular Connectors & Cable Connectors
README
README.mdPS/2 to Parallel Breakout Board
I wanted to learn about the PS/2 protocol by building a circuit to convert it from serial to parallel. I chose to use an ATTiny461A to control a PS/2 port and a 74HC164 shift register for parallel output.
Current Design
Parts
12| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 100n | Capacitor_THT:C_Rect_L4.0mm_W2.5mm_P2.50mm | C3, C4, C5 |
| 2 | 20p | Capacitor_THT:C_Rect_L4.0mm_W2.5mm_P2.50mm | C1, C2 |
| 1 | 74HC164 | Package_DIP:DIP-14_W7.62mm_Socket_LongPads | U2 |
| 1 | ATtiny461A-P | Package_DIP:DIP-20_W7.62mm_Socket_LongPads | U1 |
| 1 | ECS-080-20-4X-DU | Crystal:Crystal_HC49-4H_Vertical | Y1 |
| 1 | HDR_D | Connector_PinHeader_2.54mm:PinHeader_1x10_P2.54mm_Vertical | J3 |
| 1 | HDR_ISP | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J2 |
| 1 | HDR_S | Connector_PinHeader_2.54mm:PinHeader_1x10_P2.54mm_Vertical | J4 |
| 1 | KMDGX-6S-BS | KiCad:KMDGX6SBS | J1 |
Questions
How big is the KeyboardController PCB?
It measures 40.6 × 49.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the KeyboardController use?
12 parts, built around the ATTINY461A-PU, 74HC164, ECS-080-20-4X-DU and KMDGX-6S-BS. 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 KeyboardController KiCad files?
From the gcoonrod/ps2-parallel repository on GitHub, at the commit this page was made from: the board is KeyboardController.kicad_pcb and its schematic KeyboardController.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the KeyboardController design in my own project?
Its repository states no licence, so its author keeps all rights: ask gcoonrod before reusing the design.
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