2 layers65 × 56 mm
HAT
vandegraaf/Reef-PI_PCBs
Contains schematics and PCB file for use with open source Reef-PI software
25 parts8GPL-3.0
2 layers66 × 45.7 mm
Demoboard
encukou/demoboard- Size
- 66 × 45.7 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 31
- Nets
- 54
- Pads
- 183
- Tracks, vias
- 309, 20
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 23 Feb 2020
- Updated
- 1 Mar 2020
Overview
Demoboard is an open-source printed circuit board by encukou, from the encukou/demoboard repository on GitHub. It is a 2-layer board of 66 × 45.7 mm with 31 parts on 54 nets, routed with 309 tracks and 20 vias.
It is built around the L293D, 74HC595 and ULN2803A. Its parts include 21 connectors, 5 resistors, 3 ICs and 1 diode.
Main components
3
L293D
DIP-16-40℃~+150℃ 1.2A 2 4.5V~36V 4mA 600mA DIP-16 Brushed DC Motor Drivers ROHSSTMicroelectronicsStepper Motor Driver
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
ULN2803A
SOP-18-300mil-40℃~+85℃ 0.93mA 100uA 15pF 20uA 30V 500mA 50V 8 SOP-18-300mil Darlington Transistor Arrays ROHSUMWDarlington Transistor Arrays
Parts
31| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | Conn_01x15 | plain:PlainPinSocket_1x15_P2.54mm_Vertical | J3, J5, J8, J10 |
| 2 | 220R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R2, R3 |
| 2 | 4K7 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R5 |
| 1 | 100K | plain:PlainPinSocket_1x03_P2.54mm_Vertical | RV1 |
| 1 | 100R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4 |
| 1 | 74HC595 | Package_DIP:DIP-16_W7.62mm | U1 |
| 1 | 7SEG1 | plain:PlainPinSocket_1x05_P2.54mm_Vertical | J17 |
| 1 | 7SEG2 | plain:PlainPinSocket_1x05_P2.54mm_Vertical | J18 |
| 1 | ANALOG | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J16 |
| 1 | BAT | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J2 |
| 1 | BTN | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Horizontal | J1 |
| 1 | Conn_01x04 | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Horizontal | J4 |
| 1 | L293D | Package_DIP:DIP-16_W7.62mm | U2 |
| 1 | LED | LED_THT:LED_D3.0mm_Horizontal_O1.27mm_Z6.0mm | D1 |
| 1 | MOT_A | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J13 |
| 1 | MOT_B | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J14 |
| 1 | OLED | plain:PlainPinSocket_1x04_P2.54mm_Vertical | J22 |
| 1 | RV2 | plain:PlainPinSocket_1x02_P2.54mm_Vertical | J24 |
| 1 | STEPPER1 | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J19 |
| 1 | STEPPER2 | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J20 |
| 1 | Servo1 | plain:PlainPinHeader_1x03_P2.54mm_Vertical | J9 |
| 1 | Servo2 | plain:PlainPinHeader_1x03_P2.54mm_Vertical | J11 |
| 1 | Servo3 | plain:PlainPinHeader_1x03_P2.54mm_Vertical | J23 |
| 1 | TEMP | plain:PlainPinSocket_1x03_P2.54mm_Vertical | J12 |
| 1 | ULN2803A | Package_DIP:DIP-18_W7.62mm | U4 |
| 1 | WSLED | plain:PlainPinHeader_1x03_P2.54mm_Vertical | J6 |
Similar boards
- 2 layers100 × 100 mm
V2.2 Mechanical Seven Segment Controller
OverInvented/Flippy
The code needed to build a mechanical 7-segment display that uses electromagnets to display characters
53 parts65 - 2 layers28 × 36 mm
- 2 layers100 × 100 mm
- 2 layers110 × 31.5 mm
- 2 layers66.7 × 61.7 mm
Vday
niteshkadyan/Hearty-LED-Necklace-Badge
Kicad project files and Android app for the Hearty LED wearable necklace cum badge
179 parts10MIT - 2 layers100 × 100 mm
Flipdot brose
julianschick/flipdot-brose
Microcontroller code (ESP32) and Circuit Design for controlling Brose Flipdot Modules.
185 parts5MIT - 2 layers73 × 94 mm
8FilPilotes Base
LudovicLemarinel/EspHomeAutomation
Home Automation based on ESP8266 and MQTT
75 parts3
Questions
How big is the Demoboard PCB?
It measures 66 × 45.7 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Demoboard use?
31 parts, built around the L293D, 74HC595 and ULN2803A. 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 Demoboard KiCad files?
From the encukou/demoboard repository on GitHub, at the commit this page was made from: the board is pcb/demoboard/demoboard.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Demoboard design in my own project?
Its repository states no licence, so its author keeps all rights: ask encukou before reusing the design.